Office of

Research and Development

UNITED STATES ENVIRONMENTAL PROTECTION AGENCY

NATIONAL EXPOSURE RESEARCH LABORATORY

HUMAN EXPOSURE & ATMOSPHERIC SCIENCES DIVISION (MD-D205-03)

Research Triangle Park, NC 27711

919-541-5691

LIST OF DESIGNATED REFERENCE AND EQUIVALENT METHODS

Issue Date: February 1, 2011

(www.epa.gov/ttn/amtic/criteria.html)

These methods for measuring ambient concentrations of specified air pollutants have been designated as 

"reference methods" or "equivalent methods" in accordance with Title 40, Part 53 of the Code of Federal Regulations 

(40 CFR Part 53). Subject to any limitations (e.g., operating range or temperature range) specified in the applicable 

designation, each method is acceptable for use in state or local air quality surveillance systems under 40 CFR Part 58 

unless the applicable designation is subsequently canceled. Automated methods for pollutants other than PM10 are 

acceptable for use only at shelter temperatures between 20°C and 30°C and line voltages between 105 and 125 volts 

unless wider limits are specified in the method description.

Prospective users of the methods listed should note (1) that each method must be used in strict accordance with 

its associated operation or instruction manual and with applicable quality assurance procedures, and (2) that 

modification of a method by its vendor or user may cause the pertinent designation to be inapplicable to the method as 

modified. (See Section 2.8 of Appendix C, 40 CFR Part 58 for approval of modifications to any of these methods by 

users.)

Further information concerning particular designations may be found in the Federal Register notice cited for 

each method or by writing to the National Exposure Research Laboratory, Human Exposure and Atmospheric Sciences

Division (MD-D205-03), U.S. Environmental Protection Agency, Research Triangle Park, North Carolina 27711.

Technical information concerning the methods should be obtained by contacting the source listed for each method.

Source addresses are listed at the end of the listing of methods, except for the addresses for lead method sources, which 

are given with the method. New analyzers or PM10 samplers sold as reference or equivalent methods must carry a label 

or sticker identifying them as designated methods. For analyzers or PM10 or samplers sold prior to the designation of a 

method with the same or similar model number, the model number does not necessarily identify an analyzer or sampler 

as a designated method. Consult the manufacturer or seller to determine if a previously sold analyzer or sampler can be 

considered a designated method or if it can be upgraded to designation status. Analyzer users who experience 

operational or other difficulties with a designated analyzer or sampler and are unable to resolve the problem directly

with the instrument manufacturer may contact EPA (preferably in writing) at the above address for assistance.

This list will be revised as necessary to reflect any new designations or any cancellation of a designation 

currently in effect. The most current revision of the list will be available for inspection at EPA's Regional Offices, and 

copies may be obtained at the Internet site identified above or by writing to the National Exposure Research Laboratory 

at the address specified above.
Most Recent Designations

OPSIS Model SM200 PM10 Monitor August, 2010

SERES Model SF 2000 G SO2 Analyzer August, 2010

US EPA Region 9 TSP Pb by ICP-MS August, 2010

US EPA /OAQPS TSP Pb by ICP-MS May, 2010

2B Technologies, Inc. Model 202 Ozone Analyzer April, 2010

Inter-Mountain Labs TSP Pb by ICP-MS March, 2010
TSP List of Designated Reference and Equivalent Methods, February 1, 2011 Page 3

Particulate Matter - TSP

Reference Method for TSP

Manual Reference Method: 40 CFR Part 50, Appendix B

Reference Method for the Determination of Suspended Particulate Matter in the Atmosphere (High-Volume Method)

Federal Register: Vol. 47, page 54912, 12/06/82 and Vol. 48, page 17355, 04/22/83
PM10 List of Designated Reference and Equivalent Methods, February 1, 2011 Page 4

Particulate Matter – PM10

Andersen Model RAAS10-100 PM10 Single Channel PM10 Sampler

Manual Reference Method: RFPS-0699-130

“Andersen Instruments, Incorporated Model RAAS10-100 Single Channel Reference Method PM10 Sampler,” with RAAS10 PM10 inlet or the louvered inlet specified in 40 CFR 50 Appendix L, Figs. L-2 thru L-19, configured as a PM10 reference 

method, and operated for 24-hour continuous sample periods at a flow rate of 16.67 liters/ minute, and in accordance with the

Model RAAS105-100 Operator‟s Manual and with the requirements and sample collection filters specified in 40 CFR Part 

50, Appendix J or Appendix M.

Federal Register: Vol. 64, page 33481, 06/23/99

Andersen Model RAAS10-200 PM10 Single Channel PM10 Audit Sampler

Manual Reference Method: RFPS-0699-131

“Andersen Instruments, Incorporated Model RAAS10-200 Single Channel Reference Method PM10 Audit Sampler,” with 

RAAS-10 PM10 inlet or the louvered inlet specified in 40 CFR 50 Appendix L, Figs. L-2 thru L-19, configured as a PM10

reference method, and operated for 24-hour continuous sample periods at a flow rate of 16.67 liters/minute, and in 

accordance with the Model RAAS105-200 Operator‟s Manual and with the requirements and sample collection filters 

specified in 40 CFR Part 50, Appendix J or Appendix M.

Federal Register: Vol. 64, page 33481, 06/23/99

Andersen Model RAAS10-300 PM10 Multi Channel PM10 Sampler

Manual Reference Method: RFPS-0699-132

“Andersen Instruments, Incorporated Model RAAS10-300 Multi Channel Sequential Reference Method PM10 Sampler,” with 

RAAS-10 PM10 inlet or the louvered inlet specified in 40 CFR 50 Appendix L, Figs. L-2 thru L-19, configured as a PM10

reference method, and operated for 24-hour continuous sample periods at a flow rate of 16.67 liters/minute, and in 

accordance with the Model RAAS105-300 Operator‟s Manual and with the requirements and sample collection filters 

specified in 40 CFR Part 50, Appendix J or Appendix M.

Federal Register: Vol. 64, page 33481, 06/23/99

BGI Incorporated Model PQ100 Air Sampler

Manual Reference Method: RFPS-1298-124

“BGI Incorporated Model PQ100 Air Sampler,” with BGI 16.7 Inlet Kit or the louvered inlet specified in 40 CFR 50 

Appendix L, Figs. L-2 thru L-19, configured as a PM10 reference method, for 24-hour continuous sample periods at a flow 

rate of 16.7 liters/minute, with original firmware Version 5.X and lower or new firmware version 6.0 and higher, operated in 

accordance with the original Model PQ100 Instruction Manual or manual revision Version 7.0, as appropriate, and with the 

requirements specified in 40 CFR Part 50, Appendix J or Appendix M, using either the original or the newer PQ200-type 

filter cassettes, and with or without the optional Solar Panel Power Supply.

Federal Register: Vol. 63, page 69625, 12/17/98

Latest modification: 01/2009

BGI Incorporated Model PQ200 Air Sampler

Manual Reference Method: RFPS-1298-125

“BGI Incorporated Model PQ200 Air Sampler,” with “flat plate” PM10 inlet or the louvered inlet specified in 40 CFR 50 

Appendix L, Figs. L-2 thru L-19, configured as a PM10 reference method, and operated for 24-hour continuous sample 

periods in accordance with the Model PQ200 Instruction Manual and with the requirements specified in 40 CFR Part 50, 

Appendix J or Appendix M, and with or without the optional Solar Panel Power Supply.

Federal Register: Vol. 63, page 69625, 12/17/98

DKK-TOA Models FPM-222/222C, FPM223/223C, and DUB-222(S)/223(S) PM10 Monitor

Automated Equivalent Method: EQPM-0905-156

“DKK-TOA Models FPM-222, FPM-222C, FPM-223, FPM-223C, DUB-222(S), and DUB-223(S) Particulate Monitor,” for 

monitoring PM10 in Ambient Air (beta attenuation monitor), configured for PM10, with Firmware Version DUB4-658355, 

Corrected Slope Factor (FACT SLOPE) set to 1.232, Corrected Zero Value (FACT ZERO) set to 1.8, and with or without 

any of the following options: Auto Check and Serial Recorder.

Federal Register: Vol. 70, page 56684, 09/28/05
PM10 List of Designated Reference and Equivalent Methods, February 1, 2011 Page 5

Ecotech Model 3000 PM10 High Volume Air Sampler

Manual Reference Method: RFPS-0706-162

“Ecotech Pty. Ltd. Model 3000 PM10 High Volume Air Sampler,” configured with the Ecotech PM10 Size-Selective Inlet 

(SSI)(P-ECO-HVS3000-02), with the flow rate set to 1.13 m3/min (67.8 m3/hour).

Federal Register: Vol. 71, page 42089, 07/25/06

Environnement S.A. Model MP101M PM10 Monitor

Automated Equivalent Method: EQPM-0404-151

“Environnement S. A. Model MP101M PM10 Beta Gauge Monitor,” configured with the louvered PM10 inlet specified in 40 

CFR 50 Appendix L or its flat-topped predecessor version and one of the three optional temperature-regulated sampling tubes 

(RST), and operated with a full scale measurement range of 0 - 0.500 mg/m3(0 - 500 g/m3), with the sample flow rate set to 

1.00 m3/h and flow regulation set to yes, the “norms selection” set to m3(actual volume), the “cycle” set to 24 hours, the 

“period” set to none, and the “counting time” set to 200 seconds.2

Federal Register: Vol. 69, page 18569, 4/8/04

Graseby Andersen/GMW Model 1200 High-Volume Air Sampler

Manual Reference Method: RFPS-1287-063

“Sierra-Andersen or General Metal Works Model 1200 PM10 High-Volume Air Sampler System," consisting of a SierraAndersen or General Metal Works Model 1200 PM10 Size-Selective Inlet and any of the high-volume air samplers identified 

as SAUV-10H, SAUV-11H, GMW-IP-10, GMW-IP-10-70, GMW-IP-10-801, or GMW-IP-10-8000, which include the 

following components: Anodized aluminum high-volume shelter with either acrylonitrile butadiene styrene plastic filter 

holder and motor/blower housing or stainless steel filter holder and phenolic plastic motor/blower housing; 0.6 hp 

motor/blower; pressure transducer flow recorder; either an electronic mass flow controller or a volumetric flow controller; 

either a digital timer/programmer, seven-day mechanical timer, six-day timer/programmer, or solid-state timer/programmer; 

elapsed time indicator; and filter cartridge.

Federal Register: Vol. 52, page 45684, 12/01/87 and Vol. 53, page 1062, 01/15/88

Graseby Andersen/GMW Model 321-B High-Volume Air Sampler

Manual Reference Method: RFPS-1287-064

"Sierra-Andersen or General Metal Works Model 321-B PM10 High-Volume Air Sampler System," consisting of a SierraAndersen or General Metal Works Model 321-B PM10 Size-Selective Inlet and any of the high-volume air samplers identified 

as SAUV-10H, SAUV-11H, GMW-IP-10, GMW-IP-10-70, GMW-IP-10-801, or GMW-IP-10-8000, which include the 

following components: Anodized aluminum high-volume shelter with either acrylonitrile butadiene styrene plastic filter 

holder and motor/blower housing or stainless steel filter holder and phenolic plastic motor/blower housing; 0.6 hp 

motor/blower; pressure transducer flow recorder; either an electronic mass flow controller or a volumetric flow controller; 

either a digital timer/programmer, seven-day mechanical timer, six-day timer/programmer, or solid-state timer/programmer; 

elapsed time indicator; and filter cartridge.

Federal Register: Vol. 52, page 45684, 12/01/87 and Vol. 53, page 1062, 01/15/88

Graseby Andersen/GMW Model 321-C High-Volume Air Sampler

Manual Reference Method: RFPS-1287-065

"Sierra-Andersen or General Metal Works Model 321-C PM10 High-Volume Air Sampler System," consisting of a SierraAndersen General Metal Works Model 321-C PM10 or Size-Selective Inlet and any of the high-volume air samplers identified 

as SAUV-10H, SAUV-11H, GMW-IP-10, GMW-IP-10-70, GMW-IP-10-801, or GMW-IP-10-8000, which include the 

following components: Anodized aluminum high-volume shelter with either acrylonitrile butadiene styrene plastic filter 

holder and motor/blower housing or stainless steel filter holder and phenolic plastic motor/blower housing; 0.6 hp 

motor/blower; pressure transducer flow recorder; either an electronic mass flow controller or a volumetric flow controller; 

either a digital timer/programmer, seven-day mechanical timer, six-day timer/programmer, or solid-state timer/programmer; 

elapsed time indicator; and filter cartridge.

Federal Register: Vol. 52, page 45684, 12/01/87 and Vol. 53, page 1062, 01/15/88
PM10 List of Designated Reference and Equivalent Methods, February 1, 2011 Page 6

Graseby Andersen/GMW Models SA241 and SA241M Dichotomous Sampler

Manual Reference Method: RFPS-0789-073

“Sierra-Andersen Models SA241 and SA241M or General Metal Works Models G241 and G241M PM10 Dichotomous 

Samplers,” consisting of the following components: Sampling Module with SA246b or G246b 10 m inlet or the louvered 

inlet specified in 40 CFR 50 Appendix L, Figs. L-2 thru L-19, 2.5 m virtual impactor assembly, 37 mm coarse and fine 

particulate filter holders, and tripod mount; Control Module with diaphragm vacuum pump, pneumatic constant flow 

controller, total and coarse flow rotameters and vacuum gauges, pressure switch (optional), 24-hour flow/event recorder, 

digital timer/programmer or 7-day skip timer, and elapsed time indicator.

Federal Register: Vol. 54, page 31247, 07/27/89

Graseby Andersen/GMW Model FH621-N Beta Monitor

Automated Equivalent Method: EQPM-0990-076

“Andersen Instruments Model FH62I-N PM10 Beta Attenuation Monitor,” consisting of the following components: FH101 

Vacuum Pump Assembly; FH102 Accessory Kit; FH107 Roof Flange Kit; FH125 Zero and Span PM10 Mass Foil Calibration 

Kit; FH62I Beta Attenuation 19-inch Control Module; SA246b PM10 Inlet (16.7 liter/min) or the louvered inlet specified in 40 

CFR 50 Appendix L, Figs. L-2 thru L-19; operated for 24-hour average measurements, with an observing time of 60 minutes, 

the calibration factor set to 2400, a glass fiber filter tape, an automatic filter advance after each 24-hour sample period, and 

with or without either of the following options: FH0P1 Indoor Cabinet; FH0P2 Outdoor Shelter Assembly.

Federal Register: Vol. 55, page 38387, 09/18/90

Met One or Sibata Models BAM/GBAM 1020, BAM/GBAM 1020-1 or Horiba APDA-371

Automated Equivalent Method: EQPM-0798-122

“Met One Instruments or Sibata Scientific Technology Models BAM 1020, GBAM 1020, BAM 1020-1, GBAM 1020-1, and 

Horiba APDA-371 PM10 Beta Attenuation Monitor,” including the BX-802 sampling inlet, operated for 24-hour average 

measurements, with a filter change frequency of one hour, with glass fiber filter tape, and with or without any of the 

following options: BX-823, tube extension; BX-825, heater kit; BX-826, 230 VAC heater kit; BX-827 “Smart Heater” set for 

maintaining moisture between 35% and 45% and no ΔT control; BX-828, roof tripod; BX-902, exterior enclosure; BX-903, 

exterior enclosure with temperature control; BX-961, mass flow controller; BX-967, internal calibration device, BX-970 

touch-screen display with USB interface. For software (firmware) versions V3.0 or higher, a user-selectable measurement 

time (COUNT TIME) of 4, 6, 8 or 10 minutes selected, along with appropriate sample time (BAM SAMPLE) setting of 50, 

46, 42 or 38 minutes, respectively, to maintain a 60-minute measurement cycle. For software (firmware) versions V3.5 or 

higher, user-selectable option to sample under actual conditions (Flow Type: ACTUAL) and report under standard conditions 

(Reporting: STD), which requires the use of P/N BX-592 external temperature sensor or P/N BX-596 external 

temperature/barometric pressure sensor. The user may also sample under standard conditions (Flow Type: STD) and report 

under standard conditions (Reporting: STD) with any software/firmware 2.0 or higher. Instrument must be operated in 

accordance with the appropriate instrument manual.

Federal Register: Vol. 63, page 41253, 08/03/98

Latest modifications: 06/2009; 07/2010; 8/2010

OPSIS Model SM200 PM10 Monitor

Automated Equivalent Method: EQPM-0810-193

“OPSIS Model SM200 Monitor,” beta gauge semi-continuous ambient particulate monitor operated for 24 hours at a flow 

rate of 16.67 LPM between 5° and 40°C using 47 mm PTFE membrane filter media, in the mass measurement range of 0 to 

60 mg, configured with a BGI Model SSI25 PM10 inlet meeting criteria specified in 40 CFR 50 Appendix L, with a roof 

mounting kit, and with or without an inlet tube heater (as recommended based on site RH conditions), according to the 

SM200 User‟s Guide.

Federal Register: Vol. 75, page 51039, 08/18/10

Oregon DEQ Medium Volume PM10 Sampler

Manual Reference Method: RFPS-0389-071

“Oregon DEQ Medium Volume PM10 Sampler.” NOTE: This method is no longer commercially available.

Federal Register: Vol. 54, page 12273, 03/24/89
PM10 List of Designated Reference and Equivalent Methods, February 1, 2011 Page 7

Thermo Andersen Series FH 62 C14 Continuous PM10 Monitor

Thermo Scientific Model 5014i Beta (5014i Beta), Continuous Ambient Particulate Monitor

Automated Equivalent Method: EQPM-1102-150

“Thermo Andersen Series FH 62 C14 Continuous PM10 Ambient Particulate Monitor and Thermo Scientific Model 5014i 

Beta (5014i Beta), Continuous Ambient Particulate Monitor,” operated for 24-hour average measurements, with the specified 

10-micron inlet, inlet connector, sample tube with heater, roof flange kit, mass foil kit, pump kit, sample filter tape; with 

operational settings of 1000 L/h (16.67 L/min) sample flow rate, daily filter change, auto filter change at volumetric flow 

<950 L/h, auto filter change at mass >1500 micrograms, and factory default calculation mode settings operated with software 

version 1.07. Operated, calibrated and serviced according to the appropriate Operator Manual.

Federal Register: Vol. 67, page 76174, 12/11/02

Latest modification: 07/2009

Thermo Scientific or Rupprecht & Patashnick Partisol Model 2000 Air Sampler

Manual Reference Method: RFPS-0694-098

“Thermo Scientific Partisol 2000 Air Sampler” or “Rupprecht & Patashnick Partisol Model 2000 Air Sampler," consisting of 

a Hub Unit and 0, 1, 2, or 3 Satellite Units, with each sampling station used for PM10 measurements equipped with a 

Rupprecht & Patashnick PM10 inlet and operated for continuous 24-hour periods using the Basic, Manual, Time, Analog 

Input, or Serial Input programming modes, and with or without any of the following options: PM2.5-style filter cassette 

holder; louvered inlet specified in 40 CFR 50 Appendix L, Figs. L-2 thru L-19 in lieu of standard inlet; 57-002320 Stand for 

Hub or Satellite; 59-002542 Advanced EPROM; 10-001403 Large Pump (1/4 hp); 120 VAC. Hardware for Indoor 

Installation consists of: 51-002638-xxxx Temperature Sensor (Extended Length); 55-001289 Roof Flange (1 1/4"); 57-

000604 Support Tripod for Inlet; 57-002526-0001 Sample Tube Extension (1 m); 57-002526-0002 Sample Tube Extension 

(2 m). Hardware for Outdoor Installation in Extreme Cold Environments consists of: 10-002645 Insulating Jacket for Hub 

Unit.

Federal Register: Vol. 59, page 35338, 07/11/94

Thermo Scientific Partisol 2000-FRM PM10 Air Sampler or Rupprecht and Patashnick Partisol®-FRM 2000 PM10 Air 

Sampler

Manual Reference Method: RFPS-1298-126

“Thermo Scientific Partisol 2000-FRM PM10 Air Sampler” or “Rupprecht and Patashnick Partisol®-FRM 2000 PM10 Air 

Sampler,” with PM10 inlet or louvered inlet specified in 40 CFR 50 Appendix L, Figs. L-2 thru L-19, configured as a PM10

reference method, and operated for 24-hour continuous sample periods in accordance with the Model 2000 Instruction 

Manual and with the requirements specified in 40 CFR Part 50, Appendix J or Appendix M.

Federal Register: Vol. 63, page 69625, 12/17/98

Thermo Scientific Partisol-Plus 2025 PM10 Sequential Air Sampler or Rupprecht and Patashnick Partisol®-Plus 2025 

PM10 Sequential Air Sampler

Manual Reference Method: RFPS-1298-127

“Thermo Scientific Partisol-Plus 2025 Sequential Air Sampler” or “Rupprecht and Patashnick Company Partisol®-Plus 

Model 2025 PM10 Sequential Air Sampler,” with PM10 inlet or louvered inlet specified in 40 CFR 50 Appendix L, Figs. L-2 

thru L-19, configured as a PM10 reference method, and operated for 24-hour continuous sample periods in accordance with 

the Model 2025 Instruction Manual and with the requirements specified in 40 CFR Part 50, Appendix J or Appendix M.

Federal Register: Vol. 63, page 69625, 12/17/98

Thermo Scientific TEOM®1400AB/TEOM®1405 Ambient Particulate Monitor or

Rupprecht & Patashnick TEOM®Series 1400/1400a PM10 Monitors

Automated Equivalent Method: EQPM-1090-079

“Thermo Scientific TEOM®1400AB [PM10] Ambient Particulate Monitor” or “Rupprecht & Patashnick TEOM®Series 1400 

and Series 1400a PM-10 Monitors,” (including serial number prefixes 1400, 140A, 140AA, 140AB, 140AT, and 140UP, 

1405A), consisting of the following components: TEOM Sensor Unit; TEOM Control Unit; Flow Splitter (3 liter/min sample 

flow); Teflon-Coated Glass Fiber Filter Cartridges; Rupprecht & Patashnick PM-10 Inlet (part number 57-00596), SierraAndersen Model 246b PM-10 Inlet (16.7 liter/min) or louvered inlet specified in 40 CFR 50 Appendix L, Figs. L-2 thru L-19; 

operated for 24-hour average measurements, with the total mass averaging time set at 300 seconds, the mass rate/mass 

concentration averaging time set at 300 seconds, the gate time set at 2 seconds, and with or without any of the following 
PM10 List of Designated Reference and Equivalent Methods, February 1, 2011 Page 8

options: Tripod; Outdoor Enclosure; Automatic Cartridge Collection Unit (Series 1400a only); Flow Splitter Adapter (for 1 

or 2 liter/min sample flow). Thermo Scientific TEOM®1405 Ambient Particulate Monitor with combined sensor and control 

units and redesigned mass transducer and user interface, operated in accordance with the Thermo Scientific TEOM 1405 

instrument manual.

Federal Register: Vol. 55, page 43406, 10/29/90

Latest modification: 12/2008

Tisch Environmental Model TE-6070 PM10 High-Volume Air Sampler or New Star Environmental Model NS-6070 PM10 

High-Volume Air Sampler

Manual Reference Method: RFPS-0202-141

“Tisch Environmental Model TE-6070 or New Star Environmental Model NS-6070 PM10 High-Volume Air Sampler,” 

consisting of a TE-6001 PM10 size-selective inlet, 8" x 10" filter holder, aluminum outdoor shelter, mass flow controller or 

volumetric flow controller with brush or brushless motor, 7-day mechanical off/on-elapsed timer or 11-day digital off/onelapsed timer, and any of the high volume sampler variants identified as TE-6070-BL or NS-6070-BL, TE-6070D or NS6070D, TE-6070D-BL or NS-6070-BL, TE-6070V or NS-6070V, TE-6070V-BL or NS-6070V-BL, TE-6070-DV or NS6070-DV, or TE-6070DV-BL or NS-6070DV-BL, with or without the optional stainless steel filter media holder/filter 

cartridge or continuous flow/pressure recorder.

Federal Register: Vol. 67, page 15566, 04/02/02

Wedding & Associates' or Thermo Environmental Instruments Inc. Model 600 PM10 High-Volume Sampler

Manual Reference Method: RFPS-1087-062

"Wedding & Associates' or Thermo Environmental Instruments, Inc. Model 600 PM10 Critical Flow High-Volume Sampler," 

consisting of the following W&A/TEII components: PM10 Inlet; Critical Flow Device; Anodized Aluminum Shelter; Blower 

Motor Assembly for 115, 220 or 240 VAC and 50/60 Hz; Mechanical Timer; Elapsed Time Indicator; and Filter 

Cartridge/Cassette, and with or without the following options: Digital Timer, 6 or 7 Day Timer, and 1 or 7 Day Pressure 

Recorder.

Federal Register: Vol. 52, page 37366, 10/06/87

Wedding & Associates' or Thermo Environmental Instruments Inc. Model 650 PM10 Beta Gauge

Automated Equivalent Method: EQPM-0391-081

“Wedding & Associates' or Thermo Environmental Instruments, Inc. Model 650 PM10 Beta Gauge Automated Particle 

Sampler,” consisting of the following W&A/TEII components: Particle Sampling Module, PM10 Inlet (18.9 liter/min), Inlet 

Tube and Support Ring, Vacuum Pump (115, 220 or 240 VAC and 50/60 Hz); and operated for 24-hour average 

measurements with glass fiber filter tape.

Federal Register: Vol. 56, page 9216, 03/05/91
PM2.5 List of Designated Reference and Equivalent Methods, February 1, 2011 Page 9

Particulate Matter – PM2.5

Andersen Model RAAS2.5-200 PM2.5 Ambient Audit Air Sampler

Manual Reference Method: RFPS-0299-128

“Andersen Instruments, Incorporated Model RAAS2.5-200 PM2.5 Audit Sampler,” configured as a PM2.5 reference method 

and operated with software (firmware) version 4B, 5.0.1 - 6.09, 6.0A, or 6.0B, for 24-hour continuous sample periods at a 

flow rate of 16.67 liters/minute, and in accordance with the Model RAAS2.5-200 Operator‟s Manual and with the 

requirements and sample collection filters specified in 40 CFR Part 50, Appendix L.

Federal Register: Vol. 64, page 12167, 03/11/99

BGI Inc. Models PQ200 or PQ200A PM2.5 Ambient Fine Particle Sampler

Manual Reference Method: RFPS-0498-116

“BGI Incorporated Models PQ200 and PQ200A PM2.5 Ambient Fine Particle Sampler,” operated with firmware version 3.88 

or 3.89R, for 24-hour continuous sample periods, in accordance with the Model PQ200/PQ200A Instruction Manual and with 

the requirements and sample collection filters specified in 40 CFR Part 50, Appendix L, and with or without the optional 

Solar Power Supply or the optional dual-filter cassette (P/N F-21/6) and associated lower impactor housing (P/N B2027), 

where the upper filter is used for PM2.5. The Model PQ200A is described as a portable audit sampler and includes a set of 

three carrying cases.

Federal Register: Vol. 63, page 18911, 04/16/98

BGI Inc. Models PQ200-VSCC or PQ200A-VSCC PM2.5 Sampler

Manual Reference Method: RFPS-0498-116 or Manual Equivalent Method: EQPM-0202-142

“BGI Incorporated Models PQ200-VSCC or PQ200A-VSCC PM2.5 Ambient Fine Particle Sampler,” configured with a BGI 

VSCCTM Very Sharp Cut Cyclone particle size separator and operated with firmware version 3.88, 3.91, 3.89R, or 3.91R, for 

24-hour continuous sample periods, in accordance with the Model PQ200/PQ200A Instruction Manual and VSCC 

supplemental manual and with the requirements and sample collection filters specified in 40 CFR Part 50, Appendix L, and 

with or without the optional Solar Power Supply or the optional dual-filter cassette (P/N F-21/6) and associated lower 

impactor housing (P/N B2027), where the upper filter is used for PM2.5. The Model PQ200A VSCC is described as a portable 

audit sampler and includes a set of three carrying cases.

Federal Register: Vol. 67, page 15567, 04/02/02

Graseby Andersen Model RAAS2.5-100 PM2.5 Ambient Air Sampler

Manual Reference Method: RFPS-0598-119

“Graseby Andersen Model RAAS2.5-100 PM2.5 Ambient Air Sampler,” operated with software version 4B, 5.0.1 - 6.09, 

6.0A, or 6.0B, configured for “Single 2.5” operation, for 24-hour continuous sample periods at a flow rate of 16.67 

liters/minute, and in accordance with the Model RAAS2.5-100 Operator‟s Manual and with the requirements and sample 

collection filters specified in 40 CFR Part 50, Appendix L.

Federal Register: Vol. 63, page 31991, 06/11/98

Graseby Andersen Model RAAS2.5-300 PM2.5 Sequential Ambient Air Sampler

Manual Reference Method: RFPS-0598-120

“Graseby Andersen Model RAAS2.5-300 PM2.5 Sequential Ambient Air Sampler,” operated with software version 4B, 5.0.1 

- 6.09, 6.0A, or 6.0B, configured for “Multi 2.5" operation, for 24-hour continuous sample periods at a flow rate of 16.67 

liters/minute, and in accordance with the Model RAAS2.5-300 Operator‟s Manual and with the requirements and sample 

collection filters specified in 40 CFR Part 50, Appendix L.

Federal Register: Vol. 63, page 31991, 06/11/98

Met One BAM-1020 Monitor – PM2.5 FEM Configuration or Horiba APDA-371– PM2.5Configuration

Automated Equivalent Method: EQPM-0308-170

“Met One Instruments, Inc. BAM-1020 Beta Attenuation Mass Monitor - PM2.5 FEM Configuration, Horiba Instruments 

APDA-371 Beta Attenuation Mass Monitor – PM2.5 FEM Configuration, configured with a BGI VSCCTM Very Sharp Cut 

Cyclone particle size separator,” operated for 24 1-hour average measurements with firmware revision 3.2.4 or later, with or 

without an inlet tube extension (BX-823), with or without external enclosures BX-902 or BX-903, in accordance with the 

BAM 1020 Particulate Monitor operation manual, revision F or later, or the Horiba APDA-371 Monitor operation manual, 

and VSCCTM supplemental manual and equipped with BX-596 ambient temperature and barometric pressure combination 
PM2.5 List of Designated Reference and Equivalent Methods, February 1, 2011 Page 10

sensor, internal BX-961 automatic flow controller operated in Actual (volumetric) flow control mode, the standard BX-802 

EPA PM10 inlet head and a BGI VSCCTM Very Sharp Cut Cyclone (VSCC-A), BX-827 (110V) or BX-830 (230V) Smart 

Inlet Heater, with the heater RH set to 35% and the temperature control set to "off", the 8470-1 revision D or later tape 

control transport assembly with close geometry beta source configuration, used with standard glass fiber filter tape, COUNT

TIME parameter set for 8 minutes, the SAMPLE TIME parameter set for 42 minutes, BX-302 zero filter calibration kit 

required and with or without BX-970 touch-screen display with USB interface.

Federal Register: Vol. 73, page 13224, 03/12/2008

Latest modifications: 7/2010; 8/2010

Rupprecht & Patashnick Partisol®-FRM Model 2000 PM-2.5 Air Sampler

Manual Reference Method: RFPS-0498-117

“Rupprecht & Patashnick Company, Incorporated Partisol®-FRM Model 2000 PM-2.5 Air Sampler,” operated with software 

versions 1.102 - 1.202, with either R&P-specified machined or molded filter cassettes, with or without the optional insulating 

jacket for cold weather operation, for 24-hour continuous sample periods, in accordance with the Model 2000 Instruction 

Manual and with the requirements and sample collection filters specified in 40 CFR Part 50, Appendix L.

Federal Register: Vol. 63, page 18911, 04/16/98

Rupprecht & Patashnick Partisol® Model 2000 PM-2.5 Audit Sampler

Manual Reference Method: RFPS-0499-129

“Rupprecht & Patashnick Company, Inc. Partisol® Model 2000 PM-2.5 Audit Sampler,” configured as a PM2.5 reference 

method and operated with software (firmware) version 1.2 - 1.202, for 24-hour continuous sample periods at a flow rate of 

16.67 liters/minute, in accordance with the Partisol® Model 2000 Operating Manual and with the requirements and sample 

collection filters specified in 40 CFR Part 50, Appendix L.

Federal Register: Vol. 64, page 19153, 04/19/99

Rupprecht & Patashnick Partisol® Model 2000 PM-2.5 FEM Audit Sampler

Manual Reference Method: RFPS-0499-129 or Manual Equivalent Method: EQPM-0202-144

“Rupprecht & Patashnick Co., Inc. Partisol® Model 2000 PM-2.5 FEM Audit Sampler,” configured with a BGI VSCCTM 

Very Sharp Cut Cyclone particle size separator, and operated with software (firmware) version 1.2 - 1.202, for 24-hour 

continuous sample periods at a flow rate of 16.67 liters/minute, in accordance with the Partisol® Model 2000 Operating 

Manual and VSCC supplemental manual and with the requirements and sample collection filters specified in 40 CFR Part 50, 

Appendix L.

Federal Register: Vol. 67, page 15567, 04/02/02

Rupprecht & Patashnick Partisol®-Plus Model 2025 Sequential Air Sampler

Manual Reference Method: RFPS-0498-118

“Rupprecht & Patashnick Company, Incorporated Partisol®-Plus Model 2025 PM-2.5 Sequential Air Sampler,” operated 

with any software version 1.003 through 1.4.16, with either R&P-specified machined or molded filter cassettes, for 24-hour 

continuous sample periods, in accordance with the Model 2025 Instruction Manual and with the requirements and sample 

collection filters specified in 40 CFR Part 50, Appendix L.

Federal Register: Vol. 63, page 18911, 04/16/98

Thermo Electron Model RAAS2.5-100 FEM PM2.5 Ambient Air Sampler

Manual Reference Method: RFPS-0598-119 or Manual Equivalent Method: EQPM-0804-153

“Thermo Electron Corporation Model RAAS2.5-100 FEM PM2.5 Ambient Air Sampler,” configured with a BGI VSCCTM 

Very Sharp Cut Cyclone particle size separator and operated with software version 06.0B.00 configured for “Single 2.5” 

operation, for 24-hour continuous sample periods at a flow rate of 16.67 liters/minute, in accordance with the Model

RAAS2.5-100 FEM Operator‟s Manual and VSCCTM supplemental manual, and in accordance with the requirements and 

sample collection filters specified in 40 CFR Part 50, Appendix L.

Federal Register: Vol. 69, page 47924, 08/06/04

Thermo Electron Model RAAS2.5-200 FEM PM2.5 Audit Air Sampler

Manual Reference Method: RFPS-0299-128 or Manual Equivalent Method: EQPM-0804-154

“Thermo Electron Corporation Model RAAS2.5-200 FEM PM2.5 Audit Air Sampler,” configured with a BGI VSCCTM Very 

Sharp Cut Cyclone particle size separator and operated with software version 06.0B.00, for 24-hour continuous sample 

periods at a flow rate of 16.67 liters/minute, in accordance with the Model RAAS2.5-200 FEM Operator‟s Manual and 
PM2.5 List of Designated Reference and Equivalent Methods, February 1, 2011 Page 11

VSCC supplemental manual, and in accordance with the requirements and sample collection filters specified in 40 CFR Part 

50, Appendix L.

Federal Register: Vol. 69, page 47924, 08/06/04

Thermo Electron Model RAAS2.5-300 FEM PM2.5 Sequential Ambient Air Sampler

Manual Reference Method: RFPS-0598-120 or Manual Equivalent Method: EQPM-0804-155

“Thermo Electron Corporation Model RAAS2.5-300 FEM PM2.5 Sequential Ambient Air Sampler,” configured with a BGI 

VSCCTM Very Sharp Cut Cyclone particle size separator and operated with software version 06.0B.00 configured for “Multi 

2.5” operation, for 24-hour continuous sample periods at a flow rate of 16.67 liters/minute, in accordance with the Model 

RAAS2.5-300 FEM Operator‟s Manual and VSCC supplemental manual, and in accordance with the requirements and 

sample collection filters specified in 40 CFR Part 50, Appendix L.

Federal Register: Vol. 69, page 47924, 08/06/04

Thermo Environmental Instruments, Incorporated Model 605 “CAPS” Sampler

Manual Reference Method: RFPS-1098-123

“Thermo Environmental Instruments, Incorporated Model 605 “CAPS” Computer Assisted Particle Sampler,” configured as 

a PM2.5 reference method and operated with software version 1.02A, for 24-hour continuous sample periods, in accordance 

with the Model 605 Instruction Manual and with the requirements and sample collection filters specified in 40 CFR Part 50, 

Appendix L.

Federal Register: Vol. 63, page 58036, 10/29/98

Thermo Scientific Model 5014i or Thermo Scientific FH62C14-DHS Continuous Ambient Particle Monitor

Automated Equivalent Method: EQPM-0609-183

“Thermo Scientific Model 5014i or FH62C14-DHS Continuous Ambient Particle Monitor,” operated at a flow rate of 16.67 

liters per minute for 24-hour average measurements configured for PM2.5 with a louvered PM10 size selective inlet as 

specified in 40 CFR 50 Appendix L, Figs. L-2 through L-19, a PM2.5 BGI Inc. Very Sharp Cut Cyclone (VSCCTM) particle 

size separator, inlet connector, sample tube, DHS heater with 35% RH threshold, mass foil kit, GF10 filter tape, 8-hour filter 

change, and operational calibration and servicing as outlined in the 5014i Continuous Ambient Particulate Monitor or 

FH62C14-DHS Continuous Ambient Particulate Monitor operating manual.

Federal Register: Vol. 74, page 28696, 06/17/09.

Latest modification: 03/2010

Thermo Scientific Model 5030 SHARP Monitor

Automated Equivalent Method: EQPM-0609-184

“Thermo Scientific Model 5030 SHARP Monitor,” operated at a flow rate of 16.67 liters per minute for 24-hour average 

measurements configured for PM2.5 with a louvered PM10 size selective inlet as specified in 40 CFR 50 Appendix L, Figs. L2 through L-19, a PM2.5 BGI Inc. Very Sharp Cut Cyclone (VSCCTM) particle size separator, inlet connector, sample tube, 

DHS heater with 35% RH threshold, mass foil kit, GF10 filter tape, nephelometer zeroing kit, 8-hour filter change, and 

operational calibration and servicing as outlined in the Model 5030 SHARP instructional manual.

Federal Register: Vol. 74, page 28696, 06/17/09

Thermo Scientific TEOM®1400a Ambient Particular Monitor with Series 8500C FDMS®; Thermo Scientific TEOM®

1405-F Ambient Particular Monitor with FDMS®

Automated Equivalent Method: EQPM-0609-181 

“Thermo Scientific TEOM®1400a Ambient Particular Monitor with Series 8500C FDMS®(Filter Dynamics Measurement 

System) or Thermo Scientific TEOM®1405-F Ambient Particular Monitor with FDMS®,” configured for PM2.5 with the US 

EPA PM10 inlet specified in 40 CFR 50 Appendix L, Figs. L-2 thru L-19, followed by a BGI Inc. Very Sharp Cut Cyclone 

(VSCCTM) particle size separator, operated with a total actual flow of 16.67 L/min., loaded with Series FDMS®8500 module 

operating software and an FDMS®kit. TEOM®1400a with Series 8500C FDMS®operated with firmware version 3.20 and 

later and TEOM® 1405-F with FDMS®operated with version 1.55 or later and according to the appropriate operating manual.

Federal Register: Vol. 74, page 28696, 06/17/09

Latest Modification: 09/2010

Thermo Scientific TEOM®1405-DF Dichotomous Ambient Particular Monitor with FDMS®

Automated Equivalent Method: EQPM-0609-182

“Thermo Scientific TEOM

®

1405-DF Dichotomous Ambient Particular Monitor with FDMS®,” configured for dual filter 

sampling of fine (PM2.5) and coarse particles using the US EPA PM10 inlet specified in 40 CFR 50 Appendix L, Figs. L-2 
PM2.5 List of Designated Reference and Equivalent Methods, February 1, 2011 Page 12

thru L-19 and a virtual impactor, with a total flow rate of 16.67 L/min, fine sample flow of 3 L/min, and coarse sample flow 

rate of 1.67 L/min, and operating with firmware version 1.50 and later, operated with or without external enclosures, and 

operated in accordance with the Thermo Scientific TEOM 1405-DF Dichotomous Ambient Particulate Monitor Instruction 

Manual (designated for PM2.5 measurements only).

Federal Register: Vol. 74, page 28696, 06/17/09

Thermo Scientific Partisol®2000-D Dichotomous Air Sampler

Manual Equivalent Method: EQPS-0509-177

“Thermo Scientific Partisol®2000-D Dichotomous Air Sampler,” configured for dual-filter, single-event sampling of fine 

(PM2.5 ) and coarse (PM10-2.5) particles, using a virtual impactor to separate fine and coarse PM into two samples for 

collection on two separate filter membranes, operated for a 24-hour sample period, in accordance with the Model 2000-D 

Dichotomous Instruction Manual.

Federal Register: Vol. 74, page 26395, 06/02/09

Thermo Scientific Dichotomous Partisol®-Plus Model 2025-D Sequential Air Sampler

Manual Equivalent Method: EQPS-0509-179

“Thermo Scientific Dichotomous Partisol®-Plus Model 2025-D Sequential Air Sampler,” configured for dual-filter sampling 

of fine (PM2.5 ) and coarse (PM10-2.5) particle components, using a virtual impactor to separate the fine and coarse PM into 

two samples for collection on two separate filter membranes, and operated with the modified filter shuttle mechanism 

implemented May 31, 2008 and firmware version 1.500, or later, for 24-hour continuous sample periods, in accordance with 

the Model 2025-D Sequential Dichotomous Instruction Manual.

Federal Register: Vol. 74, page 26395, 06/02/09

Thermo Scientific Partisol 2000-FRM PM2.5 Air Sampler or Rupprecht & Patashnick Partisol®-FRM 2000 PM-2.5 Air

Sampler

Manual Reference Method: RFPS-0498-117 or Manual Equivalent Method: EQPM-0202-143

“Thermo Scientific Partisol 2000-FRM PM2.5 Air Sampler” or “Rupprecht & Patashnick Partisol®-FRM 2000 PM-2.5 [FEM] 

Air Sampler,” configured with a BGI VSCCTM Very Sharp Cut Cyclone particle size separator and operated with software 

versions 1.102 - 1.202, with either R&P-specified machined or molded filter cassettes, for 24-hour continuous sample 

periods, in accordance with the Model 2000 Instruction Manual and VSCC supplemental manual, with the requirements and 

sample collection filters specified in 40 CFR Part 50, Appendix L, and with or without the optional insulating jacket for cold 

weather operation.

Federal Register: Vol. 67, page 15567, 04/02/02

Thermo Scientific Partisol-Plus 2025 Sequential PM2.5 Air Sampler or Rupprecht & Patashnick Partisol®-Plus 2025

PM-2.5 Sequential Sampler

Manual Reference Method: RFPS-0498-118 or Manual Equivalent Method: EQPM-0202-145

“Thermo Scientific Partisol-Plus 2025 Sequential Air Sampler” or “Rupprecht & Patashnick Partisol®-Plus 2025 PM-2.5 

[FEM] Sequential Air Sampler,” configured with a BGI VSCCTM Very Sharp Cut Cyclone particle size separator, and 

operated with any software version 1.003 through 1.4.16, with either R&P-specified machined or molded filter cassettes, for 

24-hour continuous sample periods, in accordance with the Model 2025 Instruction Manual and VSCC supplemental manual 

and with the requirements and sample collection filters specified in 40 CFR Part 50, Appendix L.

Federal Register: Vol. 67, page 15567, 04/02/02

URG-MASS100 Single PM 2.5 FRM Sampler

Manual Reference Method: RFPS-0400-135

“URG-MASS100 Single PM 2.5 FRM Sampler,” operated with software (firmware) version 4B or 5.0.1, configured for 

“Single 2.5" operation, for 24-hour continuous sample periods at a flow rate of 16.67 liters/minute, and in accordance with 

the URG-MASS100 Operator‟s Manual and with the requirements and sample collection filters specified in 40 CFR Part 50, 

Appendix L.

Federal Register: Vol. 65, page 26603, 05/08/00
PM2.5 List of Designated Reference and Equivalent Methods, February 1, 2011 Page 13

URG-MASS300 Sequential PM 2.5 FRM Sampler

Manual Reference Method: RFPS-0400-136

“URG-MASS300 Sequential PM 2.5 FRM Sampler,” operated with software (firmware) version 4B or 5.0.1, configured for 

“Multi 2.5" operation, for 24-hour continuous sample periods at a flow rate of 16.67 liters/minute, and in accordance with the 

URG-MASS300 Operator‟s Manual and with the requirements and sample collection filters specified in 40 CFR Part 50, 

Appendix L.

Federal Register: Vol. 65, page 26603, 05/08/00
PM10–2.5 List of Designated Reference and Equivalent Methods, February 1, 2011 Page 14

Particulate Matter – PM10-2.5

BGI Incorporated Model PQ200 Sampler Pair

Manual Reference Method: RFPS-1208-173

“BGI Incorporated Model PQ200 PM10-2.5 Sampler Pair,” for the determination of coarse particulate matter as PM10-2.5

consisting of a pair of BGI Model PQ200 samplers, with one configured for sampling PM2.5 (RFPS-0498-116) and the other 

configured for sampling PM10c (RFPS-1298-125) with the PM2.5 separator replaced with a BGI WINS Eliminator and 

operated in accordance with the Model PQ200 Instruction manual supplement Appendix O.

Federal Register: Vol. 73, page 77024, 12/18/08

Met One Instruments BAM-1020 PM10-2.5 Measurement System

Automated Equivalent Method: EQPM-0709-185

“Met One Instruments BAM-1020 PM10-2.5 Measurement System,” consisting of 2 BAM-1020 monitors, the first of which 

(PM2.5 measurement) is configured as a PM2.5 FEM (EQPM-0308-170). The second BAM-1020 monitor (PM10

measurement) is configurable as a PM2.5 FEM (EQPM-0308-170), but set to monitor PM10. The BAM-1020 monitors are 

collocated to within 1-4 meters of one another. The BAM-1020 performing the PM2.5 measurement is equipped with Met One 

Instruments, Inc. P/N BX-Coarse interface board and accessories; the units are interconnected to provide concurrent sampling 

and to report PM10-2.5 concentrations directly to the user. Both units are operated in accordance with BAM-1020 PM-Coarse 

Addendum Rev. 5-5 or later and the BAM-1020 Operations Manual Rev. D or later. 

Federal Register: Vol. 74, page 28241, 06/15/09

Thermo Scientific Partisol®2000-D Dichotomous Air Sampler

Manual Equivalent Method: EQPS-0509-178

“Thermo Scientific Partisol®2000-D Dichotomous Air Sampler,” configured for dual-filter, single-event sampling of fine 

(PM2.5) and coarse (PM10-2.5) particles, using a virtual impactor to separate fine and coarse PM into two samples for collection 

on two separate filter membranes, operated for a 24-hour sample period, in accordance with the Model 2000-D Dichotomous 

Instruction Manual.

Federal Register: Vol. 74, page 26395, 06/02/09

Thermo Scientific Dichotomous Partisol®-Plus Model 2025-D Sequential Air Sampler

Manual Equivalent Method: EQPS-0509-180

“Thermo Scientific Dichotomous Partisol®-Plus Model 2025-D Sequential Air Sampler,” configured for dual-filter sampling 

of fine (PM2.5) and coarse (PM10-2.5) particle components, using a virtual impactor to separate the fine and coarse PM into two 

samples for collection on two separate filter membranes, and operated with the modified filter shuttle mechanism 

implemented May 31, 2008 and firmware version 1.500, or later, for 24-hour continuous sample periods, in accordance with 

the Model 2025-D Sequential Dichotomous Instruction Manual.

Federal Register: Vol. 74, page 26395, 06/02/09

Thermo Scientific Partisol® Model 2000 PM10-2.5 Sampler Pair

Manual Reference Method: RFPS-0509-175

“Thermo Scientific Partisol® Model 2000 PM10-2.5 Sampler Pair,” for the determination of coarse particulate matter as PM10-

2.5, consisting of a pair of Thermo Scientific Partisol Model 2000 samplers, with one configured as a PM2.5 sampler (RFPS0498-117) and the other configured as a PM10c sampler with the PM2.5 separator replaced with a Thermo Scientific WINS 

Bypass Downtube (RFPS-1298-126), and operated in accordance with the associated Partisol® Model 2000 Instruction 

manual supplement.

Federal Register: Vol. 74, page 26395, 06/02/09

Thermo Scientific Partisol®-Plus Model 2025 Sequential PM10-2.5 Air Sampler Pair

Manual Reference Method: RFPS-0509-176

“Thermo Scientific Partisol®-Plus Model 2025 Sequential PM10-2.5 Air Sampler Pair,” for the determination of coarse 

particulate matter as PM10-2.5, consisting of a pair of Thermo Scientific Partisol -Plus Model 2025 Sequential samplers, with 

one configured as a PM2.5 sampler (RFPS-0498-118) and the other configured as a PM10c sampler with the PM2.5 separator 

replaced with a Thermo Scientific Partisol 2025 Downtube (RFPS-1298-127), and operated in accordance with the associated 

Partisol -Plus Model 2025 Sequential Instruction manual supplement.

Federal Register: Vol. 74, page 26395, 06/02/09
SO2 List of Designated Reference and Equivalent Methods, February 1, 2011 Page 15

Sulfur Dioxide

Reference Method for SO2 (Pararosaniline Method)

Manual Reference Method: 40 CFR Part 50, Appendix A

Reference Method for the Determination of Sulfur Dioxide in the Atmosphere (Pararosaniline Method)

Federal Register: Vol. 47, page 54899, 12/06/82 and Vol. 48, 17355, 04/22/83

Pararosaniline Method for SO2 - Technicon I

Manual Equivalent Method: EQS-0775-001

“Pararosaniline Method for the Determination of Sulfur Dioxide in the Atmosphere-Technicon I Automated Analysis 

System”

Federal Register: Vol. 40, page 34024, 08/13/75

Pararosaniline Method for SO2 - Technicon II

Manual Equivalent Method: EQS-0775-002

“Pararosaniline Method for the Determination of Sulfur Dioxide in the Atmosphere-Technicon II Automated Analysis 

System”

Federal Register: Vol. 40, page 34024, 08/13/75

Advanced Pollution Instrumentation, Inc. Model 100 SO2 Analyzer

Automated Equivalent Method: EQSA-0990-077

“Advanced Pollution Instrumentation, Inc. Model 100 Fluorescent SO2 Analyzer,” operated on the 0-0.1 ppm1, the 0-0.2 

ppm1, the 0-0.5 ppm, or the 0-1.0 ppm range with a 5-micron TFE filter element installed in the rear-panel filter assembly, 

either a user- or vendor-supplied vacuum pump capable of providing 20 inches of mercury vacuum at 2.5 L/min, with or 

without any of the following options: Internal Zero/Span; Pump Pack; Rack Mount With Slides; RS-232 Interface; Status 

Output; TFE Zero/Span Valves; Zero Air Scrubber; Dual Range.2

Federal Register: Vol. 55, page 38149, 09/17/90

ASARCO Model 500 SO2 Monitor

Automated Equivalent Method: EQSA-0877-024

“ASARCO Model 500 Sulfur Dioxide Monitor,” operated on a 0-0.5 ppm range; or “ASARCO Model 600 Sulfur Dioxide 

Monitor,” operated on a 0-1.0 ppm range. (Both models are identical except for the range.) NOTE: This method is not now 

commercially available.

Federal Register: Vol. 42, page 44264, 09/02/77 and Vol. 44, page 67522, 11/26/79

Beckman Model 953 Fluorescent Ambient SO2 Analyzer

Automated Equivalent Method: EQSA-0678-029

“Beckman Model 953 Fluorescent Ambient SO2 Analyzer,” operated on a range of either 0-0.5 or 0-1.0 ppm, with a time 

constant setting of 2, 2.5, or 3 minutes, a 5 to 10 micron membrane filter element installed in the rear-panel filter assembly, 

with or without any of the following options: Remote Operation Kit, Catalog No. 641984; Digital Panel Meter, Catalog No. 

641710; Rack Mount Kit, Catalog No. 641709; Panel Mount Kit, Catalog No. 641708.

Federal Register: Vol. 43, page 35995, 08/14/78

Bendix Model 8303 Sulfur Analyzer

Automated Equivalent Method: EQSA-1078-030

“Bendix Model 8303 Sulfur Analyzer,” operated on a range of either 0-0.5 or 0-1.0 ppm, with a Teflon filter installed on the 

sample inlet of the H2S scrubber assembly.

Federal Register: Vol. 43, page 50733, 10/31/78
SO2 List of Designated Reference and Equivalent Methods, February 1, 2011 Page 16

Columbia Scientific Industries Model 5700 SO2 Analyzer

Automated Equivalent Method: EQSA-0494-095

“Columbia Scientific Industries Model 5700 Sulfur Dioxide Analyzer,” operated with software version 1.0 on any full scale 

range between 0-250 ppb1and 0-1000 ppb, at any integration time setting from 20 to 99 seconds, at any temperature in the 

range of 15°C to 30°C, at any AC line voltage in the range of 105 to 130 volts, and with or without any of the following 

options:

964-0121 Alarm Relay Contacts 964-0125 Dual Current Outputs 964-0131 Rack Mount

964-0122 Input Solenoids 964-0126 Printer 964-0012 Single Headed Pump

964-0124 Dual Analog Voltage Outputs

Federal Register: Vol. 59, page 18818, 04/20/94

Dasibi Model 4108 U.V. Fluorescence SO2 Analyzer

Automated Equivalent Method: EQSA-1086-061

“Dasibi Model 4108 U.V. Fluorescence SO2 Analyzer,” operated with a range of 0-100 ppb1, 0-200 ppb1, 0-500 ppb, or 0-

1000 ppb, with a Teflon-coated particulate filter and continuous hydrocarbon removal system, with or without any of the 

following options: Rack Mounting Brackets and Slides; RS-232-C Interface; Temperature Correction.

Federal Register: Vol. 51, page 32244, 09/10/86

DKK-TOA Corp. Model GFS-32 U.V. Fluorescent SO2 Analyzer

Automated Equivalent Method: EQSA-0701-115

“DKK-TOA Corporation Model GFS-32 Ambient Air SO2 Ultraviolet Fluorescent Analyzer,” operated within the 0.000 to 

0.500 ppm range in the temperature range of 20°C to 30°C.

Federal Register: Vol. 62, page 44007, 08/18/97

DKK-TOA Corp. Model GFS-112E U. V. Fluorescent SO2 Analyzer

Automated Equivalent Method: EQSA-0100-133

“DKK-TOA Corporation Models GFS-112E and GFS-112E-1 U.V. Fluorescence SO2 Analyzer,” operated at any 

temperature ranging from 15oC to 35oC, on any of the following measurement ranges: 0-0.05 ppm

1

, 0-0.100 ppm1, 0-0.200 

ppm1, 0-0.5 ppm, or 0-1.000 ppm, and with or without the optional Internal zero air supply and permeation tube oven.2

Federal Register: Vol. 65, page 2610, 01/18/00

DKK-TOA Corp. Model GFS-312E Ambient SO2 Analyzer

Automated Equivalent Method: EQSA-1107-168

“DKK-TOA Corporation Model GFS-312E Ambient SO2 Analyzer,” operated at any environmental temperature in the range

of 20oC to 30oC on any of the following measurement ranges1: 0-0.1 ppm, 0-0.2 ppm and 0-0.5 ppm.2

Federal Register: Vol. 72, page 63176, 11/08/07

Ecotech Serinus 50 Sulfur Dioxide Analyzer or Opsis AB OPS50 Sulfur Dioxide Analyzer

Automated Equivalent Method: EQSA-0809-188

“Ecotech Serinus 50 Sulfur Dioxide Analyzer” or “Opsis AB OPS50 Sulfur Dioxide Analyzer,” operated in the range of 0–

0.5 ppm, with a five-micron Teflon® filter element installed, and with the following selected: Background-Enabled, Control 

Loop-Enabled, Diagnostic Mode-Operate, Pres/Temp/Flow Compensation-Enabled, Span Compensation-Disabled, with 

concentration automatically corrected for temperature and pressure changes, and operated according to the Serinus 50 Sulfur 

Dioxide Analyzer User Manual or the Opsis OPS50 Sulfur Dioxide Analyzer User Manual, as appropriate.

Federal Register: Vol. 74, page 38184, 07/31/09

Latest Modification: 05/2010

Environnement S.A. Model AF21M SO2 Analyzer

Automated Equivalent Method: EQSA-0292-084

“Environnement S.A Model AF21M Sulfur Dioxide Analyzer,” operated on a range of 0-0.5 ppm with a response time 

coefficient setting of 01, a Teflon filter installed in the rear-panel filter assembly, and with or without any of the following 

options: Rack Mount/Slides; RS-232-C Interface.

Federal Register: Vol. 57, page 5444, 02/14/92
SO2 List of Designated Reference and Equivalent Methods, February 1, 2011 Page 17

Environnement S.A. Model AF22M SO2 Analyzer

Automated Equivalent Method: EQSA-0802-149

“Environnement S.A Model AF22M UV Fluorescence Sulfur Dioxide Analyzer,” operated with a full scale range of 0 - 500 

ppb, at any temperature in the range of 10°C to 35°C, with a 5-micron PTFE sample particulate filter, with a response time 

setting of 11 (Automatic response time), with the automatic “ZERO-REF” cycle ON and set for activation every 24 hours, 

and with or without either of the following options: Permeation oven, Rack mount slides.2

Federal Register: Vol. 67, page 57811, 09/12/02

Environnement S.A. SANOA Multigas Longpath Monitoring System

Automated Equivalent Method: EQSA-0400-138

“Environnement S.A. Model SANOA Multigas Longpath Air Quality Monitoring System,” consisting of a receiver, one or 

more projectors, interface unit, a user-provided control unit computer running the SANOA VisionAIR software, and 

associated incidental equipment; configured for measuring SO2, with the temperature control and internal calibration cell 

options installed, operated with a measurement range of 0 to 0.5 ppm, over an installed monitoring path length of between 27 

and 500 meters, within an ambient air temperature range of -30 to +45°C, with a measurement (integrating) time of 180 

seconds, and with or without external temperature and barometric pressure sensors or any of the following options: external 

(meteo) input connection, series 1M bus connection, OGR type projector, analog outputs.

Federal Register: Vol. 65, page 26603, 05/08/00

Horiba Models APSA-360, APSA-360-CE, or APSA-360A-CE SO2 Monitors

Automated Equivalent Method: EQSA-0197-114

“Horiba Instruments, Inc. Models APSA-360, APSA-360-CE or APSA-360A-CE Ambient Sulfur Dioxide Monitor,”

operated with a full scale range of 0 - 0.50 ppm, at any temperature in the range of 5°C to 40°C, with a Line Setting of 

"MEASURE," an Analog Output Setting of "MOMENTARY VALUE", and with or without any of the following options:2

1) Rack Mounting Plate and Side Rails, 2) RS-232 Communications Port, and 3) Internal zero gas and span gas generator. 

"Horiba Instruments, Inc. Model APSA-360A-CE Ambient Sulfur Dioxide Monitor,” operated with one of the following 

measurement ranges: 0-0.05 ppm, 0-0.1 ppm, 0-0.2 ppm, 0-0.5 ppm or 0-1.0 ppm; with selectable time constants from 10 to 

300 seconds; at any temperature in the range of 5°C to 40°C; and with or without the optional internal zero gas and span gas 

generator.

Federal Register: Vol. 62, page 6968, 02/14/97; Vol. 63, page 31992, 06/11/98

Horiba Model APSA-370 Ambient SO2 Monitor

Automated Equivalent Method: EQSA-0506-159

“Horiba Instruments Incorporated Model APSA-370 Ambient SO2 Monitor,” operated with a full scale fixed measurement 

range of 0 - 0.50 ppm, with the automatic range switching off, at any environmental temperature in the range of 20°C to 

30°C.2

Federal Register: Vol. 71, page 25587, 05/01/06

Lear Siegler Model AM2020 SO2 Monitor

Automated Equivalent Method: EQSA-0486-049

“Lear Siegler Model AM2020 Ambient SO2 Monitor,” operated on a range of either 0-0.5 or 0-1.0 ppm, at a wavelength of 

299.5 nm, with a 5 minute integration period, over any 10 C temperature range between 20°C and 45°C, with or without the 

automatic zero and span correction feature.

Federal Register: Vol. 45, page 79574, 12/01/80 and Vol. 46, page 9997, 01/30/81

Lear Siegler Model SM1000 SO2 Monitor

Automated Equivalent Method: EQSA-1275-005

“Lear Siegler Model SM1000 SO2 Ambient Monitor,” operated on the 0-0.5 ppm range, at a wavelength of 299.5 nm, with 

the "slow" (300 second) response time, with or without any of the following options: SM-1 Internal Zero/Span; SM-2 Span 

Timer Card; SM-3 0-0.1 Volt Output; SM-4 0-5 Volt Output; SM-5 Alternate Sample Pump; SM-6 Outdoor Enclosure.

Federal Register: Vol. 41, page 3893, 01/27/76; Vol. 41, page 32946, 08/06/76; Vol. 42, page 13044, 03/08/77; Vol. 45, 

page 1147, 01/04/80
SO2 List of Designated Reference and Equivalent Methods, February 1, 2011 Page 18

Meloy Model SA185-2A SO2 Analyzer

Automated Equivalent Method: EQSA-1275-006

“Meloy Model SA185-2A Sulfur Dioxide Analyzer,” operated on the 0-0.5 ppm range, with or without any of the following 

options:

S-1 Linearized Output S-2 Modified Recorder Output S-18 Rack Mount Conversion

S-24 Dual Range Linearized Output S-5 Teflon-Coated Block S-18A Rack Mount Conversion

S-33 Remote Range Control And Status S-6A Reignite Timer Circuit S-21Front Panel Digital (Signals)

S-7 Press To Read Volt Meter S-34 Remote Control S-11A Manual Zero And Span

S-22 Remote Zero/Span Control And Status (Timer) S-35 Front Panel Digital Meter With BCD Output

S-11B Automatic Zero And Span S-13 Status Lights S-22A Remote Zero/Span Control

S-36 Dual Range Log-Linear Output S-14 Output Booster Amplifier S-23 Automatic Zero Adjust

S-38 Sampling Mode Status S-14B Line Transmitter Board S-23A Automatic/Manual Zero Adjust

or operated on the 0-1.0 ppm range with either option S-36 or options S-1 and S-24, with or without any of the other options.

Federal Register: Vol. 41, page 3893, 01/27/76 and Vol. 43, page 38088, 08/25/78

Meloy Model SA285E SO2 Analyzer

Automated Equivalent Method: EQSA-1078-032

“Meloy Model SA285E Sulfur Dioxide Analyzer,” operated on the following ranges and time constant switch positions:

Range, ppb: 0-5010-10010-500 0-1000

Time Constant Setting: 1 or 10 1 or 10 off, 1 or 10 off, 1 or 10

The analyzer may be operated at temperatures between 10°C and 40°C and at line voltages between 105 and 130 volts, with 

or without any of the following options:

S-5 Teflon Coated Block S-22B Remote Zero/Span Control S-30 Auto Reignite

S-14B Line Transmitter Board and Status (Pulse) S-32 Remote Range Control And Status

S-18 Rack Mount Conversion S-23 Auto Zero Adjust S-35 Front Panel Digital Meter With

S-18A Rack Mount Conversion S-23A Auto/Manual Zero Adjust BCD Output

S-21 Front Panel Digital Meter S-25 Press To Read S-37 Temperature Status Lights

S-22 Remote Zero/Span Control S-26 Manual Zero And Span S-38 Sampling Mode Status

 and Status (Timer) S-27 Auto Manual Zero/Span

S-22A Remote Zero/Span Control S-28 Auto Range And Status

Federal Register: Vol. 43, page 50733, 10/31/78

Meloy Model SA 700 Fluorescence Sulfur Dioxide Analyzer

Automated Equivalent Method: EQSA-0580-046

“Meloy Model SA 700 Fluorescence Sulfur Dioxide Analyzer,” operated on the 0-250 ppb1, the 0-500 ppb, or the 0-1000 ppb 

range with a time constant switch position of either 2 or 3. The analyzer may be operated at temperatures between 20°C and 

30°C and at line voltages between 105 and 130 volts, with or without any of the following options: FS-1 Current Output; FS2 Rack Mount Conversion; FS-2A Rack Mount Conversion; FS-2B Rack Mount Conversion; FS-3 Front Panel Mounted 

Digital Meter; FS-5 Auto/Manual Zero/Span With Status; FS-6 Remote/Manual Zero/Span With Status; FS-7 Auto Zero 

Adjust.

Federal Register: Vol. 45, page 31488, 05/13/80

Monitor Labs Model 8450 Sulfur Monitor

Automated Equivalent Method: EQSA-0876-013

“Monitor Labs Model 8450 Sulfur Monitor,” operated on a range of either 0-0.5 or 0-1.0 ppm, with a 5 second time constant, 

a model 8740 hydrogen sulfide scrubber in the sample line, with or without any of the following options: BP Bipolar Signal 

Processor; IZS Internal Zero/Span Module; V Zero/Span Valves; CLO Current Loop Output; TF TFE Sample Particulate 

Filter; VT Zero/Span Valves And Timer; DO Status Remote Interface.

Federal Register: Vol. 41, page 36245, 08/27/76 and Vol. 44, page 33476, 06/11/79
SO2 List of Designated Reference and Equivalent Methods, February 1, 2011 Page 19

Monitor Labs/Lear Siegler Model 8850 SO2 Analyzer

Automated Equivalent Method: EQSA-0779-039

“Monitor Labs or Lear Siegler Model 8850 Fluorescent SO2 Analyzer,” operated on a range of either 0-0.5 or 0-1.0 ppm, 

with an internal time constant setting of 55 seconds, a TFE sample filter installed on the sample inlet line, with or without any 

of the following options: 03A Rack; 03B Slides; 05A Valves Zero/Span; 06A IZS Internal Zero/Span Source; 06B,C,D 

NIST-Traceable Permeation Tubes; 08A Pump; 09A Rack Mount For Option 08A; 010 Status Output W/Connector; 013 

Recorder Output Options; 014 DAS Output Options; 017 Low Flow Option; 018 Kicker.

Federal Register: Vol. 44, page 44616, 07/30/79

Monitor Labs/Lear Siegler Model 8850S SO2 Analyzer

Automated Equivalent Method: EQSA-0390-075

“Monitor Labs or Lear Siegler Model 8850S SO2 Analyzer,” operated on a range of either 0-0.5 or 0-1.0 ppm.

Federal Register: Vol. 55, page 5264, 02/14/90

Opsis Model AR 500 and System 300 Open Path Ambient Air Monitoring Systems for SO2

Automated Equivalent Method: EQSA-0495-101

“Opsis Model AR 500 System” or “System 300 Open Path (long path) Ambient Air Monitoring Systems,” configured for 

measuring SO2, with one detector and movable grating, operated with a measurement range of 0 to 0.5 ppm or 0 to 1.0 ppm, 

an installed monitoring path length between 20 and 500 meters (or 20 and 1000 meters with the ER 150 option, AR 500

System only), xenon lamp type B (150 watt), fiber optic cable length between 3 to 20 meters; operating within an ambient air 

temperature range of -50 to +50°C, an analyzer temperature range of 20 to 30°C, a measurement (integrating) time setting 

between 30 and 120 seconds (0 min:30 sec. to 2 min:00 sec.), and with a complete cycle time of not more than 200 seconds 

(3 min, 20 sec.). Under this method designation, the Model AR 500 System or System 300 consists of: AR 500 opto-analyser; 

emitter EM 110 and receiver RE 110 (together identified as ER 110); optic fibre cable OF60-S; power supply PS 150; OPSIS 

operational software, version 7.0 or 7.1; and initial on-site installation, setup, and limited operator training.2

Optional components that can be used with the Model AR 500 only, in addition to or as alternative to corresponding 

components listed above: • AR 503 opto-analyzer configured as Model AR 500 (only the center detector active, sequential 

monitoring) • Emitter/receiver ER 150 (for monitoring path lengths up to 1 kilometer) • Transceiver ER 130 and 

Retroreflector RE 090 with 7 prisms (max. monitoring path length 150 meters) or 12 prisms (max. monitoring path length 

250 meters) • Receiver RE 130 • Xenon lamp type A (higher short-wavelength UV output) • Optic fibre cable OF60-R (lowloss for short wavelengths) • Multiplexers MX 004 and MX 024 • Dataloggers DL 010 and DL 016 • Analogue and digital 

input/output cards AO 008, AI 016, and DI 032 • Analogue and digital isolation cards IA 008, ID 008, OA 008, and OD 008 • 

Window heaters HF 110 and HF 150 • Mirror heaters HM 110 and HM 150 • Auto calibration unit CU 007 • Software 

packages IO 80 (for the analogue and digital input/output adapters), DL10 and DL16 (for data loggers), COMVISION, and 

STAT 500;

Recommended calibration and accuracy audit components (or equivalent) for either Model AR 500 or System 300: • 

Wavelength calibration lamp CA 004 • Calibration bench CB 100 • Receiver unit RE 060 (two required) • Calibration unit 

CA 150, with same type lamp as used in the monitoring path emitter • Power supply PS 150 for calibration unit CA 150 • 

Calibration cells CC 001-X, where X represents various cell lengths from 1 to 900 mm • Special calibration cells CC 110 or 

CC 150 (for mounting directly on receiver) • Light meter LM 010.

Federal Register: Vol. 60, page 21518, 05/02/1995

Philips PW9755 SO2 Analyzer

Automated Equivalent Method: EQSA-0676-010

“Philips PW9755 SO2 Analyzer,” consisting of the following components: PW9755/02 SO2 Monitor with PW9741/00 SO2

Source, PW9721/00 Filter Set SO2, PW9711/00 Electrolyte SO2, PW9750/00 Supply Cabinet, PW9750/10 Supply 

Unit/Coulometric, either PW9731/00 Sampler or PW9731/20 Dust Filter (or vendor-approved alternate particulate filter); 

operated with a 0-0.5 ppm range and with a reference voltage setting of 760 millivolts; with or without any of the following 

options: PW9750/30 Frame For MTT; PW9752/00 Air Sampler Manifold; PW9753/00 Mounting Rack For Accessories; 

PW9750/41 Control Clock 60 Hz; PW9754/00 Air Distributor.

Federal Register: Vol. 41, page 26252, 6/25/76; Vol. 41, page 46019, 10/19/76; Vol. 42, page 28571, 06/03/77
SO2 List of Designated Reference and Equivalent Methods, February 1, 2011 Page 20

Philips PW9700 SO2 Analyzer

Automated Equivalent Method: EQSA-0876-011

„Philips PW9700 SO2 Analyzer,‟ consisting of the following components: PW9710/00 Chemical Unit with PW9711/00, 

Electrolyte SO2, PW9721/00 Filter Set SO2, PW9740/00 SO2 Source; PW9720/00 Electrical Unit; PW9730/00 Sampler Unit 

(or vendor-approved alternate particulate filter); operated with a 0-0.5 ppm range and with a reference voltage of 760 

millivolts.

Federal Register: Vol. 41, page 34105, 08/12/76

SERES Model SF 2000 G Sulfur Dioxide Analyzer

Automated Equivalent Method: EQSA-0810-194

“SERES model SF 2000 G Sulfur Dioxide Analyzer,” UV fluorescence method using a wavelength source approaching 215 

nm and a selective membrane for aromatic hydrocarbon removal, operated with a full scale measurement range of 0 - 0.5 

ppm at any ambient temperature in the range of 20°C to 30°C, with tabletop or rack mounts, microprocessor controlled 

menu-driven user interface, onboard diagnostics and system test functions, analog output signals of 4-20 mA or user 

selectable voltage ranges up to 10 V, printer port, modem port and 32 pin data/control/alarm port, user selectable manual and

automatic zero/span and calibrate modes; with or without a permeation tube system (optional equipment) for internal 

calibration; operated in accordance with the SF 2000 G User and Maintenance Manual.

Federal Register: Vol. 75, page 51039, 08/18/10

SIR S.A. Model S-5001 U.V. Fluorescence SO2 Analyzer

Automated Equivalent Method: EQSA-0507-166

“SIR S.A. Model S-5001 U.V. Fluorescence SO2 Analyzer,” operated with a full-scale measurement range of 0 - 0.5 ppm, 

with an integration time setting of 1 minute, and with or without an optional PCMCIA card or the optional Internal 

permeation oven.2

Federal Register: Vol. 72, page 26627, 05/10/07

Teledyne - Advanced Pollution Instrumentation, Inc. Models 100A, 100AS, 100E, 100EU, T100, T100U; Teledyne 

Analytical Instruments Model 6400A; or Teledyne Monitor Labs sensor-eTM Model TML-50 SO2 Analyzers

Automated Equivalent Method: EQSA-0495-100

„Teledyne - Advanced Pollution Instrumentation, Inc. Models 100A, 100AS, 100E, 100EU, T100 or T100U; Teledyne 

Analytical Instruments Model 6400A; or Teledyne Monitor Labs, Inc. sensor-eTM Model TML-50 UV Fluorescent Sulfur 

Dioxide Analyzer;” operated on any full scale range between 0-50 ppb1and 0-1000 ppb, at any temperature in the range of 5 

to 40 degrees C, with a TFE filter element installed in the filter assembly, with either the vendor-supplied internal pump or a 

user- or vender-supplied external vacuum pump capable of maintaining an absolute pressure of 35 cm (14 inches) of mercury 

(or less) at 1.0 standard liter per minute flow rate, with the following software settings: Dynamic zero: OFF or ON; Dynamic 

span: OFF; AutoCal: ON or OFF; Dual range: ON or OFF; Autorange: ON or OFF; Temp/pressure compensation: ON; 

dilution factor: OFF or 1.0; and with or without any of the following options (if available for the various models):2 Rack 

mount with or without chassis slides; Fluorocarbon zero/span valves; Internal zero/span (IZS); Three-point internal zero/span 

(IZS, option 51C); 4-20 mA, isolated analog outputs; analog input option; External pump; Status outputs; Control inputs; 

Rack mount for external pump with tray; RS-232 output; Ethernet output; Zero air scrubber; Combustion Filter; SO2

Permeation tube, certified or uncertified, 0.4 ppm @ 0.7 L/min; SO2 Permeation tube, certified or uncertified, 0.8 ppm @ 0.7 

L/min. Operated with the appropriate instrument manual.

Federal Register: Vol. 60, page 17061, 04/04/95

Latest Modification: 08/2010

Teledyne Monitor Labs/Casella/Ecotech Model ML9850/EC9850/EC9850T; Teledyne Monitor Labs/Casella/Ecotech/

Model ML9850B/EC9850B; or Wedding & Associates Model 1040 SO2 Analyzers

Automated Equivalent Method: EQSA-0193-092

“Teledyne Monitor Labs, Casella Monitor, or Ecotech Models ML9850/EC9850, or ML9850B/EC9850B, Ecotech Model 

EC9850T, or Wedding & Associates, Inc. Model 1040 Sulfur Dioxide Analyzers,” operated on any full scale range between 

0-0.050 ppm1and 0-1.0 ppm, at any temperature in the range of 15°C to 35°C, with the service switch on the secondary panel 

set to the In position; with the following menu choices selected: Range: 0.05 ppm to 1.0 ppm; Over-ranging: Enabled or 

Disabled; Background: Not Disabled; Calibration: Manual or Timed; Diagnostic Mode: Operate; Filter Type: Kalman; 

Pres/Temp/Flow Comp: On; Span Comp: Disabled; and as follows: Model ML9850/EC9850/EC9850T - with a five-micron 

Teflon® filter element installed internally, with the 50-pin I/O board installed on the rear panel configured at any of the 

following output range settings: Voltage, 0.1 V, 1 V, 5 V, 10 V; Current, 0-20 mA, 2-20 mA, 4-20 mA; and with or without 
SO2 List of Designated Reference and Equivalent Methods, February 1, 2011 Page 21

any of the following options: Valve Assembly for External Zero/Span (EZS); Rack Mount Assembly; Internal Floppy Disk 

Drive. Models ML9850B/EC9850B and 1040 - with either a vendor-supplied or equivalent user supplied five-micron 

Teflon® filter, zero air scrubber, and exhaust pump, and with or without any of the following options: Valve Assembly for 

External Zero/Span (EZS); Rack Mount Assembly; 50-pin I/O board; Exhaust Scrubber; Internal Zero/Span Assembly (IZS); 

hinged, fold-down front panel.

Federal Register: Vol. 58, page 6964, 02/03/93

Thermo Electron Model 43 SO2 Analyzer

Automated Equivalent Method: EQSA-0276-009

“Thermo Electron Model 43 Pulsed Fluorescent SO2 Analyzer,” equipped with an aromatic hydrocarbon cutter and operated 

on a range of either 0-0.5 or 0-1.0 ppm, with or without any of the following options: 001 Rack Mounting For Standard 19 

Inch Relay Rack; 002 Automatic Actuation Of Zero And Span Solenoid Valves; 003 Type S Flash Lamp Power Supply; 004 

Low Flow.

Federal Register: Vol. 41, page 8531, 02/27/76; Vol. 41, page 15363, 04/12/76; Vol. 42, page 20490, 04/20/77 Vol. 44, page

21861, 04/12/79; Vol. 45, page 2700, 01/14/80; Vol. 45, page 32419, 05/16/80

Thermo Environmental Instruments, Inc./Thermo Electron Models 43A, 43B, 43C, 43C-TLE, 43i, 43i-TLE SO2 Analyzers

Automated Equivalent Method: EQSA-0486-060

“Thermo Electron or Thermo Environmental Instruments, Inc. Model 43A or 43B Pulsed Fluorescence SO2 Analyzer,”

operated on the 0-0.1 ppm1, the 0-0.2 ppm1, the 0-0.5 ppm, or the 0-1.0 ppm range, with either a high or a low time constant 

setting (Model 43A) and with or without any of the following options:2

001 Teflon Particulate Filter 004 High Flow Rate (1 LPM) 007Remote Activation of Zero/Span Valves 

002 19" Rack Mounting Configuration 005 Current Output 008 RS-232 Interface (Model 43B)

003 Internal Zero/Span Valves 006 Internal Permeation 009 Pressure/Temperature Compensation

Span Source (Model 43B)

“Thermo Environmental Instruments, Inc. Models 43C, 43C-TLE, 43i, 43i-TLE, Pulsed Fluorescence SO2 Analyzer,”

operated on any measurement range between 0-50 ppb1(0-101ppb for Model TLE) and 0-1000 ppb, with any time average 

setting from 10 to 300 seconds, with temperature and/or pressure compensation on or off, operated at temperatures between 

20oC and 30oC, and with or without any of the following options:2 Teflon particulate filter, 4-20 mA current output or I/O 

expansion board, Rack mounts, Internal permeation span source/Permeation oven, Internal zero/span and sample solenoid 

valves, High flow rate (0.5-1.0 LPM); Models 43C, 43C-TLE: Remote activation of zero/span and sample valves, RS232/485 interface.

Federal Register: Vol. 51, page 12390, 04/10/86
O3 List of Designated Reference and Equivalent Methods, February 1, 2011 Page 22

Ozone

2B Technologies Model 202 and 205 Ozone Monitors

Automated Equivalent Method: EQOA-0410-190

“2B Technologies Models 202 (single beam) and 205 (dual beam) Ozone Monitors,” enclosed in a 3.5" x 8.3" x 11.6" case,

operated in a range of 0 - 0.5 ppm in an environment of 10 - 40°C, with temperature and pressure compensation, internal 

DewLine for humidity control, using a 10 second average, 10 second display update, , with a 110-220V AC power adapter or 

a 12V DC source 4.0 to 6.0 watt power consumption, operated according to the Model 202 or 205 Ozone Monitor Operation 

Manual with or without the following: such as a cigarette lighter adapter plugged into a 12V DC source or a 12V DC battery 

for portable operation, external TFE inlet filter and holder, serial data port with computer cable, BNC connector for 0-2.5V 

user scalable analog output, internal data logger, 3-analog inputs for external signals (such as temperature, relative humidity 

or pressure), rack mount hardware, on-board backup sample pump.

Federal Register: Vol.75, pages 22126-22127, 04/27/10

Latest Modification: 12/2010 

Beckman Model 950A Ozone Analyzer

Automated Reference Method: RFOA-0577-020

“Beckman Model 950A Ozone Analyzer,” operated on a range of 0-0.5 ppm and with the "SLOW" (60 second) response time, 

with or without any of the following options: Internal Ozone Generator; Computer Adaptor Kit; Pure Ethylene Accessory.

Federal Register: Vol. 42, page 28571, 06/03/77

Bendix or Combustion Engineering Model 8002 Ozone Analyzer

Automated Reference Method: RFOA-0176-007

“Bendix or Combustion Engineering Model 8002 Ozone Analyzer,” operated on the 0-0.5 ppm range, with a 40 second time 

constant, with or without any of the following options: Rack Mounting With Chassis Slides; Rack Mounting Without Chassis 

Slides; Zero And Span Timer; Ethylene/CO2 Blend Reactant Gas.

Federal Register: Vol. 41, page 5145, 02/04/76 and Vol. 45, page 18474, 03/21/80

Columbia Scientific Industries Model 2000 Ozone Meter

Automated Reference Method: RFOA-0279-036

“Columbia Scientific Industries Model 2000 Ozone Meter,” when operated on the 0-0.5 ppm range with either AC or battery 

power: The BCA 952 battery charger/AC adapter M952-0002 (115V) or M952-0003 (230V) is required for AC operation; an 

internal battery M952-0006 or 12 volt external battery is required for portable non-AC powered operation.

Federal Register: Vol. 44, page 10429, 02/20/79

Dasibi Models 1003-AH, 1003-PC, or 1003-RS Ozone Analyzers

Automated Equivalent Method: EQOA-0577-019

“Dasibi Model 1003-AH, 1003-PC, or 1003-RS Ozone Analyzer,” operated on a range of either 0-0.5 or 0-1.0 ppm, with or 

without any of the following options: Adjustable Alarm; Aluminum Coated Absorption Tubes, Integrated Output; VycorJacketed U.V. Source Lamp; BCD Digital Output; Rack Mounting Ears And Slides; 0-10 mV, 0-100 mV, 0-1 V, Or 0-10 V; 

Glass (Pyrex) Absorption Tubes; Teflon-based Solenoid Valve; Analog Output.

Federal Register: Vol. 42, page 28571, 06/03/77

Dasibi Models 1008-AH, 1008-PC, or 1008-RS Ozone Analyzers

Automated Equivalent Method: EQOA-0383-056

“Dasibi Model 1008-AH, 1008-PC, or 1008-RS Ozone Analyzer,” operated on a range of either 0-0.5 or 0-1.0 ppm, with or without 

any of the following options: Aluminum Coated Absorption Tubes; BCD Digital Output; RS232 Interface; Glass (Pyrex) 

Absorption Tubes; Vycor-Jacketed U.V. Source Lamp; Ozone Generator; Teflon-based Solenoid Valve; Photometer Flow 

Restrictor (2 LPM); 4-20 mA, Isolated, Or Dual Analog Outputs; Rack Mounting Brackets Or Slides; 20 Second Update Software.

Federal Register: Vol. 48, page 10126, 03/10/83

DKK-TOA Corp. Model GUX-113E Ozone Analyzer

Automated Equivalent Method: EQOA-0200-134

“DKK-TOA Corporation Models GUX-113E and GUX-113E-1 Ozone Analyzer,” operated at any temperature in the range 

of 15oC to 35oC, on any of the following measurement ranges: 0-0.100 ppm1, 0-0.200 ppm1, 0-0.5 ppm, or 0-1.000 ppm, and 
O3 List of Designated Reference and Equivalent Methods, February 1, 2011 Page 23

with or without the optional Internal Ozone Generator.2

Federal Register: Vol. 65, page 11308, 03/02/00

DKK-TOA Corp. Model GUX-313E Ambient O3 Analyzer

Automated Equivalent Method: EQOA-1107-169

“DKK-TOA Corporation Model GUX-313E Ambient O3 Analyzer,” operated at any environmental temperature in the range 

of 20oC to 30oC on any of the following measurement ranges1: 0-0.1 ppm, 0-0.2 ppm and 0-0.5 ppm.2

Federal Register: Vol. 72, page 63176, 11/08/07

Ecotech Serinus 10 Ozone Analyzer or Opsis AB OPS10 Ozone Analyzer

Automated Equivalent Method: EQOA-0809-187

“Ecotech Serinus 10 Ozone Analyzer” or “Opsis AB OPS10 Ozone Analyzer,” operated in the range of 0–0.5 ppm, with a 

five-micron Teflon® filter element installed, and with the following selected: Control Loop-Enabled, Diagnostic ModeOperate, Pres/Temp/Flow Compensation-Enabled, Span Compensation-Disabled, with concentration automatically corrected 

for temperature and pressure changes, and operated according to the Serinus 10 Ozone Analyzer User Manual or the Opsis 

AB OPS10 Ozone Analyzer User Manual, as appropriate.

Federal Register: Vol. 74, page 38184, 07/31/09

Latest Modification: 05/2010

Environics Series 300 Ozone Analyzer

Automated Equivalent Method: EQOA-0990-078

“Environics Series 300 Computerized Ozone Analyzer,” operated on the 0-0.5 ppm range, with the following parameters 

entered into the analyzer's computer system: Absorption Coefficient = 308 4; Flush Time = 3; Integration Factor = 1; 

Offset Adjustment = 0.025 ppm; Ozone Average Time = 4; Signal Average = 0; Temp/Press Correction = On; and with or 

without the RS-232 Serial Data Interface.

Federal Register: Vol. 55, page 38386, 09/18/90

Environnement S.A. Model O341M UV Ozone Analyzer

Automated Equivalent Method: EQOA-0895-105

“Environnement S.A. Model O341M UV Photometric Ozone Analyzer,” operated on a full scale range of 0 - 500 ppb, at any

temperature in the range of 15°C to 35°C, with the response time set to 50 seconds, and with or without any of the following 

options:2Internal Ozone Generator; Span External Control; RS232-422 Serial Interface; Internal Printer.

Federal Register: Vol. 60, page 39382, 08/02/95

Environnement S.A. Model O342M UV Ozone Analyzer

Automated Equivalent Method: EQOA-0206-148

“Environnement S.A Model O342M UV Photometric Ozone Analyzer,” operated with a full scale range of 0 - 500 ppb, at any 

temperature in the range of 10°C to 35°C, with a 5-micron PTFE sample particulate filter, with response time setting of 11 

(Automatic response time), and with or without any of the following options:2c) Internal ozone generator, d) Span external 

control (zero/span solenoid valve).

Federal Register: Vol. 67, page 42557, 06/24/02

Environnement S.A. SANOA Multigas Longpath Monitoring System

Automated Equivalent Method: EQOA-0400-137

“Environnement S.A. Model SANOA Multigas Longpath Air Quality Monitoring System, consisting of a receiver, one or 

more projectors, interface unit, a user-provided control unit computer running the SANOA VisionAIR software, and 

associated incidental equipment; configured for measuring O3, with the temperature control and internal calibration cell 

options installed, operated with a measurement range of 0 to 0.5 ppm, over an installed monitoring path length of between 27 

and 500 meters, within an ambient air temperature range of -30 to +45°C, with a measurement (integrating) time of 180 

seconds, and with or without external temperature and barometric pressure sensors or any of the following options: external 

(meteo) input connection, series 1M bus connection, OGR type projector, analog outputs. A high-concentration ozone 

generator, part # 80-231-03, or the SONIMIX 7121B calibration system is recommended for calibration or accuracy auditing.

Federal Register: Vol. 65, page 26603, 05/08/00
O3 List of Designated Reference and Equivalent Methods, February 1, 2011 Page 24

Horiba Instruments Models APOA-360 or APOA-360-CE Ozone Monitor

Automated Equivalent Method: EQOA-0196-112

“Horiba Instruments, Inc. Model APOA-360 or APOA-360-CE Ambient Ozone Monitor,” operated with a full scale range of 

0 - 0.50 ppm, at any temperature in the range of 10°C to 40°C, with a Line Setting of "MEASURE," and an Analog Output of 

"MOMENTARY VALUE," and with or without any of the following options:21) Rack Mounting Plate and Side Rails 2) RS232 Communications Port, and 3) Optional Internal Zero/Span Check

Federal Register: Vol. 61, page 11404, 03/20/96

Horiba Instruments Model APOA-370 Ozone Monitor

Automated Equivalent Method: EQOA-0506-160

“Horiba Instruments Incorporated APOA-370 Ambient O3 Monitor,” standard specification, operated with a full-scale fixed 

measurement range of 0 - 0.5 ppm, with the automatic range switching off, at any temperature in the range of 20 to 30°C.2

Federal Register: Vol. 71, page 25587, 05/01/06

McMillan (MEC) Models 1100-1, 1100-2, and 1100-3 Ozone Meters

“MEC Model 1100-1 Ozone Meter,” Automated Reference Method: RFOA-1076-014

“MEC Model 1100-2 Ozone Meter,” Automated Reference Method: RFOA-1076-015

“MEC Model 1100-3 Ozone Meter,’ Automated Reference Method: RFOA-1076-016

Operated on a 0-0.5 ppm range, with or without any of the following options: 0011 Rack Mounting Ears; 0026 Alarm Set 

Feature; 0012 Instrument Bail; 0033 Local-Remote Sample; Zero, Span Kit Blend Feature; 0016 Chassis Slide Kit; 0040 

Ethylene/CO2.

Federal Register: Vol. 41, page 46647, 10/22/76 and Vol. 42, page 30235, 06/13/77

Meloy Model OA325-2R Ozone Analyzer

Automated Reference Method: RFOA-1075-003

“Meloy Model OA325-2R Ozone Analyzer,” operated with a scale range of 0-0.5 ppm, with or without any of the following 

options: 0-4 Output Booster Amplifier; 0-18 Rack Mount Conversion; 0-18A Rack Mount Conversion.

Federal Register: Vol. 40, page 54856, 11/26/75

Meloy Model OA350-2R Ozone Analyzer

Automated Reference Method: RFOA-1075-004

“Meloy Model OA350-2R Ozone Analyzer,” operated with a scale range of 0-0.5 ppm, with or without any of the following 

options: 0-2 Automatic Zero And Span; 0-3 Remote Control Zero And Span; 0-4 Output Booster Amplifier; 0-18 Rack 

Mount Conversion; 0-18A Rack Mount Conversion.

Federal Register: Vol. 40, page 54856, 11/26/75

Monitor Labs Model 8410E Ozone Analyzer

Automated Reference Method: RFOA-1176-017

“Monitor Labs Model 8410E Ozone Analyzer,” operated on a range of 0-0.5 ppm with a time constant setting of 5 seconds, 

with or without any of the following options: DO Status Outputs; ER Ethylene Regulator Assembly; V TFE Zero/Span 

Valves; TF TFE Sample Particulate Filter; VT TFE Zero/Span Valves and Timer.

Federal Register: Vol. 41, page 53684, 12/08/76

Monitor Labs/Lear Siegler Model 8810 Ozone Analyzer

Automated Equivalent Method: EQOA-0881-053

“Monitor Labs or Lear Siegler Model 8810 Photometric Ozone Analyzer,” operated on a range of either 0-0.5 or 0-1.0 ppm, 

with selectable electronic time constant settings from 20 through 150 seconds, with or without any of the following options:

05 Pressure Compensation; 06 Averaging Option; 07 Zero/Span Valves; 08 Internal Zero/Span (Valve And Ozone Source);

09 Status; 10 Particulate Filter; 15 through 20 DAS/REC Output.

Federal Register: Vol. 46, page 52224, 10/26/81
O3 List of Designated Reference and Equivalent Methods, February 1, 2011 Page 25

Opsis Model AR 500 and System 300 Open Path Ambient Air Monitoring Systems for Ozone

Automated Equivalent Method: EQOA-0495-103

“Opsis Model AR 500 System” or “System 300 Open Path (long path) Ambient Air Monitoring Systems,” configured for 

measuring O3, with one detector and moveable grating, operated with a measurement range of 0 to 0.5 ppm, an installed 

monitoring path length between 20 and 500 meters (or 20 and 1000 meters with the ER 150 option, AR 500 System only), 

xenon lamp type B (150 watt), fiber optic cable length between 3 to 20 meters; operating within an ambient air temperature 

range of -50 to +50°C, an analyzer temperature range of 20 to 30°C, a measurement (integrating) time setting between 30 and 

120 seconds (0 min:30 sec. to 2 min:00 sec.), and with a complete cycle time of not more than 200 seconds (3 min, 20 sec.).

Under this method designation, the Model AR 500 System or System 300 consists of: AR 500 opto-analyser; emitter EM 110 

and receiver RE 110 (together identified as ER 110); optic fibre cable OF60-S; power supply PS 150, OPSIS operational 

software, version 7.0 or 7.1; and initial on-site installation, setup, and limited operator training.2

Optional components that can be used with the Model AR 500 only, in addition to or as alternative to corresponding 

components listed above: • AR 503 opto-analyzer configured as Model AR 500 (only the center detector active, sequential 

monitoring) • Emitter/receiver ER 150 (for monitoring path lengths up to1 kilometer) • Transceiver ER 130 and 

Retroreflector RE 090 with 7 prisms (max. monitoring path length 150 meters) or 12 prisms (max. monitoring path length 

250 meters) • Receiver RE 130 • Optic fibre cable OF60-R (low-loss for short wavelengths) • Multiplexers MX 004 and MX 

024 • Dataloggers DL 010 and DL 016 • Analogue and digital input/output cards AO 008, AI 016, and DI 032 • Analogue 

and digital isolation cards IA 008, ID 008, OA 008, and OD 008 • Window heaters HF 110 and HF 150 • Mirror heaters HM 

110 and HM 150 • Auto calibration unit CU 007 • Software packages IO 80 (for the analogue and digital input/output 

adapters), DL10 and DL16 (for data loggers), ComVision, and STAT 500;

Recommended calibration and accuracy audit components (or equivalent) for either Model AR 500 or System 300: • 

Wavelength calibration lamp CA 004 • Calibration bench CB 100 • Receiver unit RE 060 (two required) • Calibration unit 

CA 150, with same type lamp as used in the monitoring path emitter • Power supply PS 150 for calibration unit CA 150 • 

Calibration cells CC 001-X, where X represents various cell lengths from 1 to 900 mm • Special calibration cells CC 110 or 

CC 150 (for mounting directly on receiver) • Ozone generator OC 500 • Light meter LM 010.

Federal Register: Vol. 60, page 21518, 05/02/1995

PCI Ozone Corporation Model LC-12 Ozone Analyzer

Automated Equivalent Method: EQOA-0382-055

“PCI Ozone Corporation Model LC-12 Ozone Analyzer,” operated on a range of 0-0.5 ppm.

Federal Register: Vol. 47, page 13572, 03/31/82

Philips PW9771 03 Analyzer

Automated Equivalent Method: EQOA-0777-023

“Philips PW9771 03 Analyzer,” consisting of the following components: PW9771/00 03 Monitor with PW9724/00 Disc.-Set;

PW9750/00 Supply Cabinet; PW9750/20 Supply Unit operated on a range of 0-0.5 ppm, with or without any of the following

accessories: PW9732/00 Sampler Line Heater; PW9750/30 Frame For MTT; PW9750/41 Control Clock 60 Hz; PW9733/00

Sampler; PW9752/00 Air Sampler Manifold.

Federal Register: Vol. 42, page 38931, 08/01/77; Vol. 42, page 57156, 11/01/77

Seres Model OZ 2000 G Ozone Analyzer

Automated Equivalent Method: EQOA-0506-161

“Seres OZ 2000 G Ozone Ambient Air Analyzer,” operated with a full scale range of 0 - 0.5 ppm, at any temperature in the 

range of 20°C to 30°C, and with or without either of the following options: internal ozone generator, teletransmission 

interface.2

Federal Register: Vol. 71, page 25587, 05/01/06

SIR S.A. Model S-5014 O3 Analyzer

Automated Equivalent Method: EQOA-0207-164

“SIR S.A. Model S-5014 Photometric O3 Analyzer,” operated on the 0 - 500 ppb measurement range, within an ambient 

temperature range of 20°C to 30°C, with a sample inlet particulate filter, and with or without an optional PCMCIA card.

Federal Register: Vol. 72, page 8985, 02/28/07
O3 List of Designated Reference and Equivalent Methods, February 1, 2011 Page 26

Tanabyte Models 722, 723, 724, 725, or 726 Ambient Ozone Analyzer

Automated Equivalent Method: EQOA-0407-165

“Tanabyte Models 722,723, 724, 725, or 726 Ambient Ozone Analyzer,” enclosed in either a Dual-Bay Chassis or a SingleBay Chassis and operated on either the 0 - 0.5 ppm or 0 - 1.0 ppm measurement range, within an ambient temperature range 

of 20 to 30 degrees C, and with a sample inlet particulate filter installed in the sample filter holder.

Federal Register: Vol. 72, page 20846, 04/26/07

Teledyne - Advanced Pollution Instrumentation, Inc. Model 400E or T400; Advanced Pollution Instrumentation, Inc. 

Model 400/400A; Teledyne Monitor Labs sensor-eTM Model TML-10 Ozone Analyzers

Automated Equivalent Method: EQOA-0992-087

“Teledyne - Advanced Pollution Instrumentation, Inc. Model 400E or T400; Advanced Pollution Instrumentation, Inc. Model 

400 or 400A; or Teledyne Monitor Labs sensor-eTM Model TML-10 Ozone Analyzer;” operated on any full scale range 

between 0-100 ppb1and 0-1000 ppb, with any range mode (Single, Dual, or AutoRange), at any ambient temperature in the 

range of 5°C to 40°C, and with a TFE filter. Models 400E, T400 and TML-50: operated with a sample flow rate of 800 80 

cm3/min (sea level), with the dilution factor set to 1, with Dynamic Zero ON or OFF, with Dynamic Span OFF, with 

Temp/Press compensation ON, and with or without any of the following options: Internal or external sample pump, 

Sample/Cal valve option, Internal Zero/Span (IZS), Rack mount with or without slides, analog input option, 4-20 mA isolated 

current loop output.2 Models 400/400A: operated with the dynamic zero and span adjustment feature (some Model 400 units 

only) set to OFF, and with or without any of the following options: Zero/Span Valve option, Internal Zero/Span (IZS) option, 

IZS ozone generator reference feedback option, standard serial port or Multi-drop RS-232, digital status outputs, analog 

outputs: 100 mV, 1V, 5V, 10V, 4-20 mA current loop, optional metal wool ozone scrubber, optional external sample pump, 

optional 47 mm diameter filter, optical bench heater, rack mount with slides. Operated with the appropriate instrument 

manual.

Federal Register: Vol. 57, page 44565, 09/28/92; Vol. 63, page 31992, 06/11/98 

Federal Register: Vol. 67, page 57811, 09/12/02

Latest Modification: 08/2010

Teledyne Monitor Labs/Casella/Ecotech Models ML9810/EC9810, -11, or -12, Teledyne Monitor Labs/Casella/Ecotech

Model ML9810B/EC9810B, or Wedding & Associates Model 1010 Ozone Analyzers

Automated Equivalent Method: EQOA-0193-091

“Teledyne Monitor Labs, Casella Monitor, or Ecotech Models ML9810/EC9810, ML9811/EC9811, ML9812/EC9812, or 

ML9810B/EC9810B or Wedding & Associates, Inc. Model 1010 Ozone Analyzers,” operated on any full scale range 

between 0-0.05 ppm1and 0-1.0 ppm, at any temperature in the range of 15°C to 35°C, with the service switch on the 

secondary panel set to the In position; with the following menu choices selected: Range: 0.05 ppm to 1.0 ppm; Over-ranging: 

Enabled or Disabled; Calibration: Manual or Timed; Diagnostic Mode: Operate; Filter Type: Kalman; Pres/Temp/Flow 

Comp: On; Span Comp: Disabled; and as follows: Models ML9810/EC9810, -9811, and -9812 - with a five-micron 

Teflon® filter element installed internally, with the 50-pin I/O board installed on the rear panel configured at any of the 

following output range settings: Voltage, 0.1V, 1V, 5V, 10V; Current, 0-20 mA, 2-20 mA, 4-20 mA; and with or without any 

of the following options: Valve Assembly for External Zero/Span (EZS); Rack Mount Assembly; Internal Floppy Disk Drive.

Models ML9810B/EC9810B and 1010 - with either a vendor-supplied or equivalent user-supplied five micron Teflon® 

filter and exhaust pump, and with or without any of the following options: Valve Assembly for External Zero/Span (EZS); 

Rack Mount Assembly; 50-pin I/O board; Internal Zero/Span Assembly (IZS); hinged, fold-down front panel.

Federal Register: Vol. 58, page 6964, 02/03/93

Thermo Electron/Thermo Environmental Instruments Models 49, 49C, 49i

Automated Equivalent Method: EQOA-0880-047

“Thermo Electron or Thermo Environmental Instruments, Inc. Model 49 U.V. Photometric Ambient O3 Analyzer,” operated 

on a measurement range of either 0-0.5 or 0-1.0 ppm with or without any of the following options: 49-001 Teflon Particulate 

Filter; 49-002 19 Inch Rack Mount; 49-100 Internal Ozone Generator for Zero, Precision, and Level 1 Span Check; 49-103 

Internal Ozone Generator for Zero, Precision, and Level 1 Span Checks With Remote Activation; 49-488 GPIB (General 

Purpose Interface Bus) IEEE-488.
O3 List of Designated Reference and Equivalent Methods, February 1, 2011 Page 27

“Thermo Electron or Thermo Environmental Instruments, Inc. Model 49C or 49i U.V. Photometric Ambient O3 Analyzer,”

operated on any measurement range between 0-0.051to 1.0 ppm, with any time average setting between 10 and 300 seconds, 

with the temperature and/or pressure compensation on or off, within a temperature range of 20°C to 30°C, with or without 

any of the following options: 2 Teflon particulate filter, Internal Zero Air Scrubber, Internal Ozonator with remote activation, 

Rack mounts; Model 49C: Internal Ozonator, Carrying Handle, 4-20 mA current output, RS-232 Interface, RS-485 Interface; 

Model 49i: I/O expansion board.

Federal Register: Vol. 45, page 57168, 08/27/80
CO List of Designated Reference and Equivalent Methods, February 1, 2011 Page 28

Carbon Monoxide

Beckman Model 866 CO Monitoring System

Automated Reference Method: RFCA-0876-012

“Beckman Model 866 Ambient CO Monitoring System,” consisting of the following components: Pump/Sample-Handling 

Module; Gas Control Panel; Model 865-17 Analyzer Unit; Automatic Zero/Span Standardizer; operated with a 0-50 ppm 

range, a 13 second electronic response time, with or without any of the following options: Current Output Feature; Bench 

Mounting Kit; Linearizer Circuit.

Federal Register: Vol. 41, page 36245, 08/27/76

Bendix/Combustion Engineering Model 8501-5CA CO Analyzer

Automated Reference Method: RFCA-0276-008

“Bendix or Combustion Engineering Model 8501-5CA Infrared CO Analyzer,” operated on the 0-50 ppm range and with a 

time constant setting between 5 and 16 seconds, with or without any of the following options: Rack Mounting with Chassis 

Slides; Rack Mounting without Chassis Slides; External Sample Pump.

Federal Register: Vol. 41, page 7450, 02/18/76

Dasibi Model 3003 CO Analyzer

Automated Reference Method: RFCA-0381-051

“Dasibi Model 3003 Gas Filter Correlation Dasibi Environmental CO Analyzer,” operated on the 0-50 ppm range, with a 

sample particulate filter installed on the sample inlet line, with or without any of the following options:

3-001 Rack Mount 3-003 BCD Digital Output 3-007 Zero/Span Module Panel 

3-002 Remote Zero and Span 3-004 4-20 Milliamp Output 

Federal Register: Vol. 46, page 20773, 04/07/81

Dasibi Model 3008 CO Analyzer

Automated Reference Method: RFCA-0488-067

“Dasibi Model 3008 Gas Filter Correlation CO Analyzer,” operated on the 0-50 ppm range, with a time constant setting of 60 

seconds, a particulate filter installed in the analyzer sample inlet line, with or without use of the auto zero or auto zero/span 

feature, and with or without any of the following options: N-0056-A RS-232-C Interface; S-0132-A Rack Mounting Slides; 

Z-0176-S Rack Mounting Brackets.

Federal Register: Vol. 53, page 12073, 04/12/88

DKK-TOA Corporation Model GFC-311E Ambient CO Analyzer

Automated Reference Method: RFCA-0907-167

“DKK-TOA Corporation Model GFC-311E Ambient CO Analyzer,” operated with full scale fixed measurement ranges of 0-

5, 0-20, and 0-50 ppm at any environmental temperature in the range of 20oC to 30oC.

Federal Register: Vol. 72, page 56339, 10/03/07

Ecotech Serinus 30 Carbon Monoxide Analyzer or Opsis AB OPS 30 Carbon Monoxide Analyzer

Automated Reference Method: RFCA-0509-174

“Ecotech Serinus 30 Carbon Monoxide Analyzer” or “Opsis AB OPS30 Carbon Monoxide Analyzer,” operated in the range 

of 0-50 ppm, with a five-micron Teflon®filter element installed, and with the following selected: Background–Enabled, 

Control Loop–Enabled, Diagnostic Mode–Operate, Pres/Temp/Flow Compensation–Enabled, Span Compensation–Disabled, 

with concentration automatically corrected for temperature and pressure changes, and operated according to the Serinus 30 

Carbon Monoxide Analyzer User Manual or the OPS30 Carbon monoxide Analyzer User Manual, as appropriate.

Federal Register: Vol. 74, page 26395, 06/02/09

Latest Modification: 05/2010
CO List of Designated Reference and Equivalent Methods, February 1, 2011 Page 29

Environnement S.A. Model CO11M CO Analyzer

Automated Reference Method: RFCA-0995-108

“Environnement S.A. Model CO11M Ambient Carbon Monoxide Analyzer,” operated on a full scale range of 0 - 50 ppm, at 

any temperature in the range of 15°C to 35°C, with a 5-micron PTFE sample particulate filter, with the following software 

settings: Automatic response time ON; Minimum response time set to 40 seconds (RT 13); Automatic ZERO-REF cycle 

programmed every 24 hours; and with or without any of the following options: 2 RS232-422 Serial Interface; Internal Printer.

Federal Register: Vol. 60, page 54684, 10/25/95

Environnement S.A. Model CO12M CO Analyzer

Automated Reference Method: RFCA-0206-147

“Environnement S.A Model CO12M Gas Filter Correlation Carbon Monoxide Analyzer,” operated with a full scale range of 

0 - 50 ppm, at any temperature in the range of 10°C to 35°C, with a 5-micron PTFE sample particulate filter, with response 

time ON, and with the automatic “ZERO-REF” cycle either ON or OFF.2

Federal Register: Vol. 67, page 42557, 06/24/02

Horiba Models AQM-10, AQM-11, or AQM12 CO Monitoring Systems

Automated Reference Method: RFCA-1278-033

“Horiba Models AQM-10, AQM-11, or AQM12 Ambient CO Monitoring Systems,” operated on the 0-50 ppm range, with a

response time setting of 15.5 seconds, with or without any of the following options: AIC-101 Automatic Indication 

Corrector; VIT-3 Non-Isolated Current Output; ISO-2 And DCS-3 Isolated Current Output.

Federal Register: Vol. 43, page 58429, 12/14/78

Horiba Model APMA-300E CO Monitoring System

Automated Reference Method: RFCA-1180-048

“Horiba Model APMA-300E Ambient Carbon Monoxide Monitoring System,” operated on the 0-20 ppm1, the 0-50 ppm, or

the 0-100 ppm range with a time constant switch setting of No. 5. The monitoring system may be operated at temperatures 

between 10°C and 40°C. (This method was originally designated as “Horiba Model APMA 300E/300SE Ambient Carbon 

Monoxide Monitoring System.”)

Federal Register: Vol. 45, page 72774, 11/03/80

Horiba Models APMA-360 or APMA-360-CE CO Monitor

Automated Reference Method: RFCA-0895-106

“Horiba Instruments Incorporated, Models APMA-360 or APMA-360-CE Ambient Carbon Monoxide Monitor,” operated on 

the 0-50 ppm range, with the Line Setting set to "MEASURE," with the Analog Output set to "MOMENTARY VALUE," 

and with or without the following options:21) Rack Mounting Plate and Side Rails 2) RS-232 Com Port.

Federal Register: Vol. 60, page 39382, 08/02/95

Horiba Model APMA-370 CO Monitor

Automated Reference Method: RFCA-0506-158

“Horiba Instruments Incorporated Model APMA-370 Ambient CO Monitor,” operated with a full scale fixed measurement 

range of 0 - 50 ppm, with the automatic range switching off, at any environmental temperature in the range of 20°C to 30°C.2

Federal Register: Vol. 71, page 25587, 05/01/06

MASS-CO, Model 1 CO Analyzer

Automated Reference Method: RFCA-1280-050

“MASS-CO, Model 1 Carbon Monoxide Analyzer,” operated on a range of 0-50 ppm, with automatic zero and span 

adjustments at time intervals not to exceed 4 hours, with or with out the 100 millivolt and 5 volt output options. The method 

consists of the following components: (1) Infra-2 (Uras 2) Infrared Analyzer Model 5611-200-35, (2) Automatic Calibrator 

Model 5869-111, (3) Electric Gas Cooler Model 7865-222 or equivalent with prehumidifier, (4) Diaphragm Pump Model 

5861-214 or equivalent, (5) Membrane Filter Model 5862-111 or equivalent, (6) Flow Meter Model SK 1171-U or 

equivalent, (7) Recorder Model Mini Comp DN 1/192 or equivalent. NOTE: This method is not now commercially available.

Federal Register: Vol. 45, page 81650, 12/11/80
CO List of Designated Reference and Equivalent Methods, February 1, 2011 Page 30

Monitor Labs Model 8310 CO Analyzer

Automated Reference Method: RFCA-0979-041

“Monitor Labs Model 8310 CO Analyzer,” operated on the 0-50 ppm range, with a sample inlet filter, with or without any of 

the following options: 02A Zero/Span Valves 04B Pump (50 Hz) 07A Zero/Span Valve Power Supply

03A Floor Stand 05A CO Regulator 08A Calibration Valves

04A Pump (60 Hz) 06A CO Cylinder 09A,B,C,D Input Power Transformer

Federal Register: Vol. 44, page 54545, 09/20/79 and Vol. 45, page 2700, 01/14/80

Monitor Labs/Lear Siegler Model 8830 CO Analyzer

Automated Reference Method: RFCA-0388-066

“Monitor Labs or Lear Siegler Model 8830 CO Analyzer,” operated on the 0-50 ppm range, with a five micron Teflon filter 

element installed in the rear-panel filter assembly, with or without any of the following options: 2 - Zero/Span Valve 

Assembly; 3 - Rack Assembly; 4 - Slide Assembly; 7 - 230 VAC, 50/60 Hz.

Federal Register: Vol. 53, page 7233, 03/07/88

MSA/LIRA Model 202S CO Analyzer System

Automated Reference Method: RFCA-0177-018

“LIRA Model 202S Air Quality Carbon Monoxide Analyzer System,” consisting of a LIRA Model 202S optical bench (P/N 

459839), a regenerative dryer (P/N 464084), and rack-mounted sampling system; operated on a 0-50 ppm range, with the 

slow response amplifier, with or without any of the following options: Remote Meter; Remote Zero And Span Controls; 0-1, 

5, 20, Or 50 mA Output; 1-5, 4-20, Or 10-50 mA Output; 0-10 Or 100 mV Output; 0-1, 5, Or 10 Volt Output.

Federal Register: Vol. 42, page 5748, 01/31/77

SIR S.A. Model S-5006 CO Analyzer

Automated Reference Method: RFCA-0708-172

“SIR S.A. Model S-5006 CO Analyzer,” operated with full scale fixed measurement ranges 0-50 ppm at any environment 

temperature in the range of 20°C to 30°C.

Federal Register: Vol. 73, page 40866, 07/16/08

Teledyne Advanced Pollution Instrumentation, Inc. Models 300, 300E, 300EU, T300, T300U or Teledyne Monitor Labs 

sensor-eTM Model TML-30 CO Analyzer

Automated Reference Method: RFCA-1093-093

“Teledyne Advanced Pollution Instrumentation, Inc. Models 300, 300E, 300EU, T300, T300U or Teledyne Monitor Labs, 

Inc. sensor-eTM Model TML-30, Gas Filter Correlation Carbon Monoxide Analyzer,” operated on any full scale range 

between 0-10 ppm and 0-50 ppm (0 - 0.1 ppm for Models 300EU and T300U), at any temperature in the range of 15°C to 

35°C for Model 300 or 10°C to 40°C for Models 300E, 300 EU, T300, T300U and TML-30, with a 5-micron TFE filter 

element installed in the sample filter assembly, with the dynamic zero and span adjustment set to Off for Model 300, and 

with or without any of the following options:

2 Option 50, Zero/Span Valves with pressurized span gas and shutoff valve; 

Option 51, Zero/Span Valves with pressurized span gas and shutoff valve and Internal Zero Air Generator; Option 52, 

Zero/Span Valves; Option 53, Zero/Span Valves with Internal Zero Air Generator; Rack Mount with slides; RS-232 serial 

port with status outputs; analog input option; and (for Models 300E, 300EU, T300, T300U and TML-30) 4-20 mA isolated 

outputs. Operated with the appropriate instrument manual.

Federal Register: Vol. 58, page 58166, 10/29/93

Latest Modification: 08/2010

Teledyne Monitor Labs/Casella/Ecotech Model ML9830/EC9830/EC9830T, Teledyne Monitor Labs/Casella/Ecotech

Model ML9830B/EC9830B, or Wedding & Associates Model 1020 CO Analyzers

Automated Reference Method: RFCA-0992-088

“Teledyne Monitor Labs, Casella Monitor, or Ecotech Models ML9830/EC9830 or ML9830B/EC9830B, Ecotech Model 

EC9830T, or Wedding & Associates, Inc. Model 1020 Carbon Monoxide Analyzer,” operated on any full scale range 

between 0-5.0 ppm1and 0-100 ppm, at any temperature in the range of 15°C to 35°C, with the service switch on the 

secondary panel set to the In position, with the following menu choices selected: Range: 5.0 ppm to 100.0 ppm; Overranging: Enabled or Disabled; Background: Not Disabled; Calibration: Manual or Timed; Diagnostic Mode: Operate; Filter 

Type: Kalman; Pres/Temp/Flow Comp: On; Span Comp: Disabled; and as follows: Model ML9830/EC9830/EC9830T:

with a five-micron Teflon® filter element installed internally, with the 50-pin I/O board installed on the rear panel configured 

at any of the following output range settings: Voltage, 0.1V, 1V, 5V, 10V; Current, 0-20 mA, 2-20 mA and 4-20 mA; and 
CO List of Designated Reference and Equivalent Methods, February 1, 2011 Page 31

with or without any of the following options: Valve Assembly for External Zero/Span (EZS); Valve Assembly for Internal 

Zero/Span (IZS); Rack Mount Assembly; Internal Floppy Disk Drive. Models ML9830B/EC9830B and 1020: with either a 

vendor-supplied or equivalent user-supplied five micron Teflon® filter and exhaust pump, and with or without any of the 

following options: Valve Assembly for External Zero/Span (EZS); 50-pin I/O board; Rack Mount Assembly; High Pressure 

Span Valve; hinged, fold-down front panel.

Federal Register: Vol. 57, page 44565, 09/28/92

Thermo Electron/Thermo Environmental Instruments Models 48, 48C, 48CTLE, 48i, 48iTLE

Automated Reference Method: RFCA-0981-054

“Thermo Electron or Thermo Environmental Instruments, Inc. Model 48 Gas Filter Correlation Ambient CO Analyzer,”

operated on the 0-50 ppm range, with a time constant setting of 30 seconds, with or without any of the following options: 

48-001 Teflon Particulate Filter 48-010 Internal Zero Air Package

48-002 19 Inch Rack Mount 48-488 GPIB (General Purpose Interface Bus) EEEE-488

48-003 Internal Zero/Span Valves with Remote Activation

“Thermo Electron or Thermo Environmental Instruments, Inc. Models 48C or 48i Gas Filter Correlation Ambient CO 

Analyzer,” operated on any measurement range between 0-1 ppm1and 0-100 ppm, with any averaging time setting from 10 

to 300 seconds, with temperature and/or pressure compensation on or off, operated at temperatures between 20oC and 30oC,

with or without any of the following options:2 Teflon particulate filter, Internal zero air scrubber, I/O Expansion board; 

Model 48C: Carrying handle, 4-20 mA current output, Rack mounts, RS-232 interface, Internal zero/span and 

sample/calibration solenoid valves, RS-485 interface, Internal zero/span and sample/calibration solenoid valves with remote 

I/O activation; Models 48C or 48i Trace Level-Enhanced (TLE) Gas Filter Correlation Ambient CO Analyzers

operated between 0-1 and 100 ppm with averaging time from 10 to 300 seconds, operated at temperatures between 20° and 

30°C at line voltages of 90-110, 105-125, and 210-250 VAC @ 50/60 Hz, with or without any of the following options: rack 

mounts, Teflon® particulate filter, I/O Expansion board.

Federal Register: Vol. 46, page 47002, 09/23/81

Latest modifications: 04/2009; 10/2010
NO2 List of Designated Reference and Equivalent Methods, February 1, 2011 Page 32

Nitrogen Dioxide

Sodium Arsenite Method for NO2

Manual Equivalent Method: EQN-1277-026

“Sodium Arsenite Method for the Determination of Nitrogen Dioxide in the Atmosphere.”

Federal Register: Vol. 42, page 62971, 12/14/77

Sodium Arsenite Method for NO2 - Technicon II

Manual Equivalent Method: EQN-1277-027

“Sodium Arsenite Method for the Determination of Nitrogen Dioxide in the Atmosphere-Technicon II Automated Analysis 

System.”

Federal Register: Vol. 42, page 62971, 12/14/77

TGS-ANSA Method for NO2

Manual Equivalent Method: EQN-1277-028

“TGS-ANSA Method for the Determination of Nitrogen Dioxide in the Atmosphere.”

Federal Register: Vol. 42, page 62971, 12/14/77

Advanced Pollution Instrumentation, Inc. Model 200 NO2 Analyzer

Automated Reference Method: RFNA-0691-082

“Advanced Pollution Instrumentation, Inc. Model 200 Nitrogen Oxides Analyzer,” operated on a range of either 0-0.5 or 0-

1.0 ppm, with a 5-micron TFE filter element installed in the rear-panel filter assembly, with either a user- or vendor-supplied 

vacuum pump capable of providing 5 inches mercury absolute pressure at 5 slpm, with either a user- or vendor-supplied dry 

air source capable of providing air at a dew point of 0 C or lower, with the following settings of the adjustable setup 

variables:

Adaptive Filter = On PMT Temperature Set Point = 15°C Normal Filter Size = 12 samples

Dwell Time = 7 seconds Rate of Change(ROC) Threshold = 10% Dynamic Span = Off

Sample Time = 8 seconds Reaction Cell Temperature = 50°C Dynamic Zero = Off

and with or without any of the following options:

180 Stainless Steel Valves 283 Internal Zero/Span With Valves (IZS) 356 Level One Spares Kit

184 Pump Pack 325 RS-232/Status Output 357 Level Two Spares Kit

280 Rack Mount With Slides 355 Expendables PE5 Permeation Tube for IZS

Federal Register: Vol. 56, page 27014, 06/12/91

Beckman Model 952-A NO/NO2/NOx Analyzer

Automated Reference Method: RFNA-0179-034

“Beckman Model 952-A NO/NO2/NOx Analyzer,” operated on the 0-0.5 ppm range with the 5-micron Teflon sample filter 

(Beckman P/N 861072 supplied with the analyzer) installed on the sample inlet line, with or without the Remote Operation 

Option (Beckman No. 635539).

Federal Register: Vol. 44, page 7806, 02/07/79

Bendix Model 8101-B Oxides of Nitrogen Analyzer

Automated Reference Method: RFNA-0479-038

“Bendix Model 8101-B Oxides of Nitrogen Analyzer,” operated on a 0-0.5 ppm range with a Teflon sample filter installed on 

the sample inlet line and with the following post-manufacture modifications: 1) Ozone generator and reaction chamber inputoutput tubing modification per Bendix Service Bulletin 8101B-2; 2) The approved converter material; 3) The revised and 

EPA-approved operation and service manual. These items are mandatory and must be obtained from ABB Process Analytics.

The analyzer may be operated with or without any of the following optional modifications: a. Perma Pure dryer/ambient air 

modification; b. Valve cycle time modification; c. Zero potentiometer centering modification per Bendix Service Bulletin 

8101B-1; d. Reaction chamber vacuum gauge modification.

Federal Register: Vol. 44, page 26792, 05/07/79
NO2 List of Designated Reference and Equivalent Methods, February 1, 2011 Page 33

Bendix/Combustion Engineering Model 8101-C Oxides of Nitrogen Analyzer

Automated Reference Method: RFNA-0777-022

“Bendix or Combustion Engineering Model 8101-C Oxides of Nitrogen Analyzer,” operated on a 0-0.5 ppm range with a 

Teflon sample filter (Bendix P/N 007163) installed on the sample inlet line.

Federal Register: Vol. 42, page 37435, 07/21/77

Columbia Scientific Industries Models 1600 and 5600 Analyzers

Automated Reference Method: RFNA-0977-025

“CSI Model 1600 Oxides of Nitrogen Analyzer,” operated on a 0-0.5 ppm range with a Teflon sample filter (CSI P/N M951-

8023) installed on the sample inlet line, with or without any of the following options:

951-0103 Rack Ears 951-0114 Recorder Output, 5 V

951-0104 Rack Mounting Kit (Ears & Slides) 951-0115 External Pump (115 V, 60 Hz)

951-0106 Current Output, 4-20 mA (Non-Insulated) 951-8072 Molybdenum Converter Assembly (Horizontal) 

951-0108 Diagnostic Output Option 951-8074 Copper Converter Assembly (Horizontal)

951-0111 Recorder Output, 10 V 951-8079 Copper Converter Assembly (Vertical)

951-0112 Remote Zero/Span Sample Control 951-8085 Molybdenum Converter Assembly (Vertical)

NOTE: The vertical molybdenum converter assembly is standard on all new analyzers as of 1-1-87; however, use of any of 

the other converter assemblies is optional. Also, the above options reflect new CSI part numbers.

“CSI Model 5600 Oxides of Nitrogen Analyzer,” operated on a 0-0.5 ppm range, with any signal integration time in the range 

of 20 to 99 seconds, with a Teflon sample filter (CSI P/N M951-8023) installed on the sample inlet line, and with or without 

any of the following options: 954-0121 - Status Contacts; 964-0126 - Printer; 954-0131 - Rack Mounting Kit (ears and 

slides); 954-0122 - Input Solenoids; 954-8024 - Cartridge Dryer; 964-0012 - Single Headed Pump - Gast; 954-0125 - Current 

Output, 4-20 mA; 951-0115 - Single Headed Pump – KNF.

Federal Register: Vol. 42, page 46574, 09/16/77

Dasibi Model 2108 Oxides of Nitrogen Analyzer

Automated Reference Method: RFNA-1192-089

“Dasibi Model 2108 Oxides of Nitrogen Analyzer,” operated on the 0-500 ppb range, with software revision 3.6 installed in 

the analyzer, with the auto thumbwheel switch and the diag thumbwheel switch settings at 0, with the following internal CPU 

dipswitch settings:

switch position function

 1 open (down) Recorder outputs are NO & NO2

 5 open (down) 3 minute time constant

 6 closed (up) 3 minute time constant;

with a 5-micron Teflon filter element installed in the filter holder, and with or without any of the following options:

Built-in Permeation Oven Rack Mounting Three-Channel Recorder Output

RS-232 Interface4-20 mA Output

Federal Register: Vol. 57, page 55530, 11/25/92

DKK-TOA Corporation Model GLN-114E Nitrogen Oxides Analyzer

Automated Reference Method: RFNA-0798-121

“DKK-TOA Corporation Models GLN-114E and GLN-114E-1 Nitrogen Oxides Analyzer,” operated within a temperature 

range of 20 to 30 degrees C, on any of the following measurement ranges: 0-0.0501, 0-0.1001, 0-0.2001, 0-0.500, and 0-1.000 

ppm, and with or without the optional Internal zero air supply and permeation tube oven.2

Federal Register: Vol. 63, page 41253, 08/03/98

DKK-TOA Corporation Model GLN-314E Nitrogen Oxides Analyzer

Automated Reference Method: RFNA-0508-171

“DKK-TOA Corporation Model GLN-314E Nitrogen Oxides Analyzer,” operated at any temperature in the range of 20oC to 

30oC, on any of the following measurement ranges:10-0.100 ppm, 0-0.200 ppm, 0-0.500 ppm.2

Federal Register: Vol. 73, page 28819, 05/19/08
NO2 List of Designated Reference and Equivalent Methods, February 1, 2011 Page 34

Ecotech Serinus 40 Oxides of Nitrogen Analyzer or Opsis AB OPS40 Oxides of Nitrogen Analyzer

Automated Reference Method: RFNA-0809-186

“Ecotech Serinus 40 Oxides of Nitrogen Analyzer” or “Opsis AB OPS40 Oxides of Nitrogen Analyzer,” operated in the 

range of 0–0.5 ppm, with a five-micron Teflon® filter element installed, and with the following selected: Control LoopEnabled, Diagnostic Mode-Operate, Pres/Temp/Flow Compensation-Enabled, Span Compensation-Disabled, with 

concentration automatically corrected for temperature and pressure changes, and operated according to the Serinus 40 Oxides 

of Nitrogen Analyzer User Manual or the OPS40 Oxides of Nitrogen Analyzer User Manual, as appropriate.

Federal Register: Vol. 74, page 38184, 07/31/09

Latest Modification: 05/2010

Environnement S. A. Model AC31M NO2 Analyzer

Automated Reference Method: RFNA-0795-104

“Environnement S. A. Model AC31M Chemiluminescent Nitrogen Oxide Analyzer,” operated with a full scale range of 0 -

500 ppb, at any temperature in the range of 15°C to 35°C, with a 5-micron PTFE sample particulate filter, with the following 

software settings: Automatic response time ON; Minimum response time set to 60 seconds (RT 2); and with or without any 

of the following options:2Internal Permeation Oven; Connection for Silica Gel Dryer; RS232-422 interface; EV3 valve; 

Internal Printer.

Federal Register: Vol. 60, page 38326, 07/26/95

Environnement S. A. Model AC32M NO2 Analyzer

Automated Reference Method: RFNA-0202-146 

“Environnement S. A. Model AC32M Chemiluminescent Nitrogen Oxides Analyzer,” operated with a full scale range of 0 -

500 ppb, at any temperature in the range of 10°C to 35°C, with a 5-micron PTFE sample particulate filter, with response time 

setting 11 (automatic response time), and with or without the following option: Internal permeation oven.

Federal Register: Vol. 67, page 15567, 04/02/02

Environnement S.A. SANOA Multigas Longpath Monitoring System

Automated Reference Method: EQNA-0400-139

“Environnement S.A. Model SANOA Multigas Longpath Air Quality Monitoring System,” consisting of a receiver, one or 

more projectors, interface unit, a user-provided control unit computer running the SANOA VisionAIR software, and 

associated incidental equipment; configured for measuring NO2, with the temperature control and internal calibration cell 

options installed, operated with a measurement range of 0 to 0.5 ppm, over an installed monitoring path length of between 27 

and 500 meters, within an ambient air temperature range of -30 to +45°C, with a measurement (integrating) time of 180 

seconds, and with or without external temperature and barometric pressure sensors or any of the following options: external 

(meteo) input connection, series 1M bus connection, OGR type projector, analog outputs.

Federal Register: Vol. 65, page 26603, 05/08/00

Horiba Instruments Models APNA-360 or APNA-360-CE NO-NO2-NOX Monitor

Automated Reference Method: RFNA-0196-111

“Horiba Instruments, Inc. Models APNA-360 or APNA-360-CE Ambient NO-NO2-NOX Monitor,” operated with a full scale 

range of 0 - 0.50 or 0 - 1.0 ppm, at any temperature in the range of 10°C to 40°C, with a Line Setting of "MEASURE", and 

an Analog Output of "MOMENTARY VALUE", and with or without the following options:21) Rack Mounting Plate and 

Side Rails 2) RS-232 Communications Port.

Federal Register: Vol. 61, page 11404, 03/20/96

Horiba Instruments Model APNA-370 NO2 Monitor

Automated Reference Method: RFNA-0506-157

“Horiba Instruments Incorporated Model APNA-370 Ambient NOx Monitor,” standard specification, operated with a full 

scale fixed measurement range of 0 - 0.50 ppm with the automatic range switching off, at any ambient temperature in the 

range of 20°C to 30°C, and with a 0.3 micrometer sample particulate filter installed.2

Federal Register: Vol. 71, page 25587, 05/01/06
NO2 List of Designated Reference and Equivalent Methods, February 1, 2011 Page 35

Meloy Model NA530R Nitrogen Oxides Analyzer

Automated Reference Method: RFNA-1078-031

“Meloy Model NA530R Nitrogen Oxides Analyzer,” operated on the following ranges and time constant switch positions:

Range, ppm: 0-0.110-0.2510-0.5 0-1.0 

Time Constant Setting: 4 3 or 4 2,3, or 4 2,3, or 4

Operation of the analyzer requires an external vacuum pump, either Meloy Option N-10 or an equivalent pump capable of 

maintaining a vacuum of 200 torr (22 inches mercury vacuum) or better at the pump connection at the specified sample and 

ozone-air flow rates of 1200 and 200 cm3/min, respectively. The analyzer may be operated at temperatures between 10°C and 

40°C and at line voltages between 105 and 130 volts, with or without any of the following options: N-1A Automatic Zero 

And Span; N-2 Vacuum Gauge; N-4 Digital Panel Meter; N-6 Remote Control For Zero And Span; N-6B Remote Zero/Span 

Control And Status (Pulse); N-6C Remote Zero/Span Control And Status (Timer); N-9 Manual Zero/Span; N-10 Vacuum 

Pump Assembly (See Alternate Requirement Above); N-11 Auto Ranging; N-14B Line Transmitter; N-18 Rack Mount 

Conversion; N-18A Rack Mount Conversion.

Federal Register: Vol. 43, page 50733, 10/31/78 and Vol. 44, page 8327, 02/09/79

Monitor Labs Model 8440E Nitrogen Oxides Analyzer

Automated Reference Method: RFNA-0677-021

“Monitor Labs Model 8440E Nitrogen Oxides Analyzer,” operated on a 0-0.5 ppm range (position 2 of range switch) with a 

time constant setting of 20 seconds, with or without any of the following options:

TF- Sample Particulate Filter DO- Status Outputs 018A- Ozone Dry Air O18B- Ozone Dry Air - No Drierite

With TFE Filter Element R- Rack Mount V- Zero/Span Valves FM- Flow meters

Federal Register: Vol. 42, page 37434, 07/21/77; Vol. 42, page 46575, 09/16/77; Vol. 46, page 29986, 06/04/81

Monitor Labs/Lear Siegler Model 8840 Nitrogen Oxides Analyzer

Automated Reference Method: RFNA-0280-042

“Monitor Labs or Lear Siegler Model 8840 Nitrogen Oxides Analyzer,” operated on a range of either 0-0.5 or 0-1.0 ppm, 

with an internal time constant setting of 60 seconds, a TFE sample filter installed on the sample inlet line, with or without any 

of the following options:

02 Flowmeter 08A Pump Pac Assembly with 09A (115 VAC) 011A Recorder Output 1 Volt

03A Rack Ears 08B Pump Pac Assembly with 09B (100 VAC) 011B Recorder Output 100 mV

03B Slides 08C Pump Pac Assembly with 09C (220/240 VAC) 011C Recorder Output 10 mV

05A Zero/Span Valves 08D Rack Mount Panel Assembly 012A DAS Output 1 Volt

05B Valve/Relay 09A Pump 115 VAC 50/60 Hz 012B DAS Output 100 mV

06 Status 09B Pump 100 VAC 50/60 Hz 012C DAS Output 10 mV

07A Input Power Transformer 100 VAC, 50/60 Hz 09C Pump 220/240 VAC 50 Hz 013A Ozone Dry Air

07B Input Power Transformer 220/240 VAC 50 Hz 013B Ozone Dry Air - No Drierite

Federal Register: Vol. 45, page 9100, 02/11/80 and Vol. 46, page 29986, 06/04/81

Monitor Labs/Lear Siegler Model 8841 Nitrogen Oxides Analyzer

Automated Reference Method: RFNA-0991-083

“Monitor Labs or Lear Siegler Model 8841 Nitrogen Oxides Analyzer,” operated on the 0-0.05 ppm,

1

0-0.1 ppm,

1

0-0.2 

ppm,

1

0 - 0.5 ppm, or 0-1.0 ppm range, with manufacturer-supplied vacuum pump or alternative user-supplied vacuum pump 

capable of providing 200 torr or better absolute vacuum while operating with the analyzer.

Federal Register: Vol. 56, page 47473, 09/19/91

Opsis Model AR 500 and System 300 Open Path Ambient Air Monitoring Systems for NO2

Automated Equivalent Method: EQNA-0495-102

“Opsis Model AR 500 System” or “System 300 Open Path (long path) Ambient Air Monitoring Systems,” configured for 

measuring NO2, with one detector and movable grating, operated with a measurement range of 0 to 0.5 ppm, an installed 

monitoring path length between 50 and 500 meters (or 50 and 1000 meters with the ER 150 option, AR 500 System only), 

xenon lamp type B (150 watt), fiber optic cable length between 3 and 20 meters; operating within an ambient air temperature 

range of -50 to +50°C, an analyzer temperature range of 20 to 30°C, a measurement (integrating) time setting between 30 and 

120 seconds (0 min:30 sec. to 2 min:00 sec.), and with a complete cycle time of not more than 200 seconds (3 min, 20 sec.).

Under this method designation, the Model AR 500 System or System 300 consists of: AR 500 opto-analyser; emitter EM 110 

and receiver RE 110 (together identified as ER 110); optic fibre cable OF60-S; power supply PS 150; OPSIS operational 

software, version 7.0 or 7.1; and initial on-site installation, setup, and limited operator training.2
NO2 List of Designated Reference and Equivalent Methods, February 1, 2011 Page 36

Optional components that can be used with the Model AR 500 only, in addition to or as alternative to corresponding 

components listed above: • AR 503 opto-analyzer configured as Model AR 500 (only the center detector active, sequential 

monitoring) • Emitter/receiver ER 150 (for monitoring path lengths up to 1 kilometer) • Transceiver ER 130 and Retroreflector 

RE 090 with 7 prisms (max. monitoring path length 150 meters) or 12 prisms (max. monitoring path length 250 meters) • 

Receiver RE 130 • Xenon lamp type A (higher short-wavelength UV output) • Optic fibre cable OF60-R (low-loss for short 

wavelengths) • Multiplexers MX 004 and MX 024 • Dataloggers DL 010 and DL 016 • Analogue and digital input/output cards 

AO 008, AI 016, and DI 032 • Analogue and digital isolation cards IA 008, ID 008, OA 008, and OD 008 • Window heaters 

HF 110 and HF 150 • Mirror heaters HM 110 and HM 150 • Auto calibration unit CU 007 • Software packages IO 80 (for the 

analogue and digital input/output adapters), DL10 and DL16 (for data loggers), ComVision, and STAT 500.

Recommended calibration and accuracy audit components (or equivalent) for either Model AR 500 or System 300: • 

Wavelength calibration lamp CA 004 • Calibration bench CB 100 • Receiver unit RE 060 (two required) • Calibration unit 

CA 150, with same type lamp as used in the monitoring path emitter • Power supply PS 150 for calibration unit CA 150 • 

Calibration cells CC 001-X, where X represents various cell lengths from 1 to 900 mm • Filter GG 400 • Special calibration 

cells CC 110 or CC 150 (for mounting directly on receiver) • Light meter LM 010

Federal Register: Vol. 60, page 21518, 05/02/95

Philips Model PW9762/02 NO/NO2/NOx Analyzer

Automated Reference Method: RFNA-0879-040

“Philips Model PW9762/02 NO/NO2/NOx Analyzer,” consisting of the following components: PW9762/02 Basic Analyzer;

PW9729/00 Converter Cartridge; PW9731/00 Sampler or PW9731/20 Dust Filter; operated on a range of 0-0.5 ppm, with or 

without any of the following accessories: PW9752/00 Air Sampler Manifold; PW9732/00 Sample Line Heater; PW9011/00 

Remote Control Set.

Federal Register: Vol. 44, page 51683, 09/04/79

Seres Model NOx 2000 G Nitrogen Dioxide Analyzer

Automated Reference Method: RFNA-0706-163

“Seres Model NOx 2000 G Nitrogen Dioxide Ambient Air Analyzer,” operated with a full scale measurement range of 1 -

0.50 ppm, at any ambient temperature in the range of 20°C to 30°C.

Federal Register: Vol. 71, page 42089, 07/25/06

SIR S.A. Model S-5012 Nitrogen Oxides Analyzer

Automated Reference Method: RFNA-0804-152

“SIR S.A. Model S-5012 Chemiluminescent Nitrogen Oxides Analyzer,” operated with a full scale range of 0 - 500 ppb, at 

any temperature in the range of 20°C to 30°C, with the integration time set to 1 minute, with the “initial zero” disabled, and 

with a specified Teflon particulate filter installed in the sample inlet filter holder.2

Federal Register: Vol. 69, page 47924, 08/06/04

Teledyne - Advanced Pollution Instrumentation, Inc. Models 200A, 200AU, 200E, 200EU, T200, T200U; Teledyne 

Analytical Instruments Model 9110A; or Teledyne Monitor Labs sensor-eTM Model TML-41 NO2 Analyzers

Automated Reference Method: RFNA-1194-099

“Teledyne - Advanced Pollution Instrumentation, Inc. Models 200A, 200AU, 9110A, 200E, 200EU, T200, T200U; Teledyne 

Analytical Instruments Model 9110A; or Teledyne Monitor Labs, Inc. sensor-eTM Model TML-41 Chemiluminescence 

Nitrogen Oxides Analyzer,” operated on any full scale range between 0-0.05 ppm and 0-1.0 ppm, with a PTFE filter element 

installed in the internal filter assembly, with the following software settings: dynamic zero: OFF or ON; dynamic span: OFF; 

cal-on-NO2: OFF; dilution factor: OFF or set to 1.0; autocal: ON or OFF; independent range: ON or OFF; autorange: ON or 

OFF; temperature/pressure compensation: ON; and with or without any of the following options (if available): rack mounts 

with or without slides, rack mount for external pump, zero/span valves, 4-20 mA analog outputs, status outputs, RS-232 

output. Models 200A, 200E2, and T200 and TML-41 only: operated at any temperature in the range of 5°C to 40°C, with 

either a user- or vendor-supplied vacuum pump capable of providing an absolute pressure of 10 inches mercury or less at 2 

slpm, with or without optional internal zero/span (IZS) and permeation tubes for IZS, gold-plated reaction chamber, or 

Nafion-type sample gas conditioner, ethernet output, control input, analog input option, RS-485 output. Model 200AU,

200EU, and T200U only: operated at any temperature in the range of 20°C to 30°C, with either a user- or vendor-supplied 

vacuum pump capable of providing an absolute pressure of 4 inches mercury or less at 1 slpm. Operated with the appropriate 

instrument manual.

Federal Register: Vol. 59, page 61892, 12/02/94

Latest modifications: 03/2009; 08/2010
NO2 List of Designated Reference and Equivalent Methods, February 1, 2011 Page 37

Teledyne Monitor Labs/Casella/Ecotech Models ML9841, ML9841A/EC9841A/EC9841T, Teledyne Monitor Labs/

Casella/Ecotech Model ML9841B/EC9841B, or Wedding & Associates Model 1030 NO2 Analyzers

Automated Reference Method: RFNA-1292-090

“Teledyne Monitor Labs, Casella Monitor, or Ecotech Models ML9841, ML9841A/EC9841A, or ML9841B/EC9841B,

Ecotech Model 9841T, or Wedding & Associates, Inc. Model 1030 Nitrogen Oxides Analyzers,” operated on any full scale 

range between 0-0.05 ppm1and 0-1.0 ppm, at any temperature in the range of 15°C to 35°C, with the service switch on the 

secondary panel set to the In position; with the following menu choices selected: Range: 0.05 ppm to 1.0 ppm; Over-ranging: 

Enabled or Disabled; Calibration: Manual or Timed; Diagnostic Mode: Operate; Filter Type: Kalman; Pres/Temp/Flow 

Comp: On; Span Comp: Disabled; and as follows: Models ML9841, ML9841A/EC9841A, and EC9841T - with a fivemicron Teflon® filter element installed internally, with the 50-pin I/O board installed on the rear panel configured at any of 

the following output range setting: Voltage, 0.1V, 1V, 5V, 10V; Current, 0-20 mA, 2-20 mA, 4-20 mA; and with or without 

any of the following options: Valve Assembly for External Zero/Span (EZS); Internal Zero/Span (IZS) Assembly for; Rack 

Mount Assembly; Internal Floppy Disk Drive. Models ML9841B/EC9841B and 1030 - with a vendor-supplied or equivalent 

user-supplied five-micron Teflon® filter and exhaust pump, and with or without any of the following options: Valve 

Assembly for External Zero/Span (EZS); 50-pin I/O board; Internal Zero/Span (IZS) Assembly; Rack Mount Assembly; 

Charcoal exhaust scrubber; hinged, fold-down front panel.

Federal Register: Vol. 57, page 60198, 12/18/92

Thermo Electron/Thermo Environmental Instruments Model 14 B/E

Automated Reference Method: RFNA-0179-035

“Thermo Electron or Thermo Environmental Instruments, Inc. Model 14 B/E Chemiluminescent NO/NO2/NOx Analyzer,”

operated on the 0-0.5 ppm range, with or without any of the following options: 

14-001 Teflon Particulate Filter 14-003 Long-Time Signal Integrator 14-005 Sample Flowmeter

14-002 Voltage Divider Card 14-004 Indicating Temperature Controller 14-006 Air Filter

Federal Register: Vol. 44, page 7805, 02/07/79 and Vol.44, page 54545, 09/20/79

Thermo Electron/Thermo Environmental Instruments Model 14 D/E

Automated Reference Method: RFNA-0279-037

“Thermo Electron or Thermo Environmental Instruments, Inc. Model 14 D/E Chemiluminescent NO/NO2/NOx Analyzer,”

operated on the 0-0.5 ppm range, with or without any of the following options: 14-001 Teflon Particulate Filter; 14-002 

Voltage Divider Card.

Federal Register: Vol. 44, page 10429, 02/20/79

Thermo Environmental Instruments Models 42, 42C, 42i NO/NO2/NOx Analyzer

Automated Reference Method: RFNA-1289-074

“Thermo Environmental Instruments Inc. Model 42, Model 42C, or Model 42i Chemiluminescence NO-NO2-NOx 

Analyzer,” operated on any measurement range between 0-50 ppb and 0-1000 ppb, with any time average setting from 10 to 

300 seconds, with temperature and/or pressure compensation on or off, operated at temperatures between 15°C and 35°C, and 

with or without an exhaust ozone scrubber or any of the following options: 2 Rack mounts; Internal Zero/span and sample 

valves with remote activation; Ozone particulate filter; Teflon particulate filter; Ozone permeation dryer; Permeation Oven; 

RS-232/485 interface, 4-20 mA current output, or I/O expansion board; Model 42 only: Pressure transducer, Sample/ozone 

flow meters. Model 42i-TL operated between 10 and 1000 ppb with averaging times from 10 to 300 seconds, operated at 

temperatures between 15°C and 35°C at line voltages of:

a) 90-110 VAC @ 50/60/Hz

b) 105-125 VAC @ 50/60/Hz

c) 210-250 VAC @ 50/60/Hz 

and with or without the following options: rack mounts, Teflon® Particle Filter, I/O Expansion Board.

Federal Register: Vol. 54, page 50820, 12/11/89

Latest modification: 01/2010
Pb List of Designated Reference and Equivalent Methods, February 1, 2011 Page 38

Lead

Reference Method for Lead

Manual Reference Method: 40 CFR Part 50, Appendix G

Reference Method for the Determination of Lead in Suspended Particulate Matter Collected from Ambient Air.

Federal Register: Vol. 43, page 46258, 10/05/78

Energy-Dispersive X-Ray Fluorescence Spectrometry (TNRCC)

Manual Equivalent Method: EQL-0783-058

“Determination of Lead Concentration in Ambient Particulate Matter by Energy-Dispersive X-Ray Fluorescence 

Spectrometry (Texas Natural Resource Conservation Commission),” Texas Natural Resource Conservation Commission, 

P.O. Box 13087, Austin, TX 78711-3087.

Federal Register: Vol. 48, page 29742, 06/28/83

Energy-Dispersive X-Ray Fluorescence Spectrometry (NEA, Inc.)

Manual Equivalent Method: EQL-0589-072

“Determination of Lead Concentration in Ambient Particulate Matter by Energy-Dispersive X-Ray Fluorescence 

Spectrometry (NEA, Inc.),” Nuclear Environmental Analysis, Inc., Suite 260, 10950 SW 5th Street, Beaverton, OR 97005.

Federal Register: Vol. 54, page 20193, 05/10/89

Flame Atomic Absorption Spectrometry

Manual Equivalent Method: EQL-0380-043

“Determination of Lead Concentration in Ambient Particulate Matter by Flame Atomic Absorption Spectrometry Following 

Ultrasonic Extraction with Heated HNO3-HCl”

Federal Register: Vol. 45, page 14648, 03/06/80

Flameless Atomic Absorption Spectrometry (EPA/RTP, N.C.)

Manual Equivalent Method: EQL-0380-044

“Determination of Lead Concentration in Ambient Particulate Matter by Flameless Atomic Absorption Spectrometry

(EPA/RTP, NC)”

Federal Register: Vol. 45, page 14648, 03/06/80

Flameless (Graphite Furnace) Atomic Absorption (Houston, Texas)

Manual Equivalent Method: EQL-0895-107

“Determination of Lead Concentration in Ambient Particulate Matter by Flameless (Graphite Furnace) Atomic Absorption 

(City of Houston, Texas),” Health and Human Services Department, Environmental Chemistry Service, 1115 S. Braeswood, 

Houston, TX 77030.

Federal Register: Vol. 60, page 39383, 08/02/95

Flameless Atomic Absorption Spectrometry (Omaha)

Manual Equivalent Method: EQL-0785-059

“Determination of Lead Concentration in Ambient Particulate Matter by Flameless Atomic Absorption Spectrometry 

(Omaha-Douglas County Health Department),” Omaha-Douglas County Health Department, 1819 Farnam Street, Omaha, 

NE 68183.

Federal Register: Vol. 50, page 37909, 09/18/85

Inductively Coupled Argon Plasma-Optical Emission Spectrometry (Doe Run)

Manual Equivalent Method: EQL-0196-113

“Determination of Lead Concentration in Ambient Particulate Matter by Inductively Coupled Argon Plasma-Optical 

Emission Spectrometry (Doe Run Co.),” Doe Run Company, Smelting Division, 881 Main Street Herculaneum, MO 63048

Federal Register: Vol. 61, page 11404, 03/20/96
Pb List of Designated Reference and Equivalent Methods, February 1, 2011 Page 39

Inductively Coupled Argon Plasma-Optical Emission Spectrometry (EPA/RTP)

Manual Equivalent Method: EQL-0380-045

“Determination of Lead Concentration in Ambient Particulate Matter by Inductively Coupled Argon Plasma-Optical 

Emission Spectrometry (EPA/RTP, NC)”

Federal Register: Vol. 45, page 14648, 03/06/80

Inductively Coupled Argon Plasma-Optical Emission Spectrometry (IL)

Manual Equivalent Method: EQL-1193-094

“Determination of Lead Concentration in Ambient Particulate Matter by Inductively Coupled Argon Plasma-Optical 

Emission Spectrometry (State of Illinois),” State of Illinois, Environmental Protection Agency, Champaign Inorganic 

Laboratory, 2120 South First Street, Champaign, IL 61820

Federal Register: Vol. 58, page 61902, 11/23/93

Inductively Coupled Argon Plasma-Optical Emission Spectrometry (Kansas)

Manual Equivalent Method: EQL-0592-085

“Determination of Lead Concentration in Ambient Particulate Matter by Inductively Coupled Argon Plasma-Optical 

Emission Spectrometry (State of Kansas),” State of Kansas, Department of Health and Environment, Forbes Field, Building 

740, Topeka, KS 66620-0001.

Federal Register: Vol. 57, page 20823, 05/15/92

Inductively Coupled Argon Plasma-Optical Emission Spectrometry (Montana)

Manual Equivalent Method: EQL-0483-057

“Determination of Lead Concentration in Ambient Particulate Matter by Inductively Coupled Argon Plasma-Optical 

Emission Spectrometry (State of Montana),” State of Montana, Department of Health and Environmental Sciences, Cogswell 

Building, Helena, MT 59620.

Federal Register: Vol. 48, page 14748, 04/05/83

Inductively Coupled Argon Plasma-Optical Emission Spectrometry (NETI)

Manual Equivalent Method: EQL-1188-069

“Determination of Lead Concentration in Ambient Particulate Matter by Inductively Coupled Argon Plasma-Optical 

Emission Spectrometry (Northern Engineering and Testing, Inc.),” Northern Engineering and Testing, Inc., P.O. Box 30615, 

Billings, MT 59107.

Federal Register: Vol. 53, page 44947, 11/07/88

Inductively Coupled Argon Plasma-Optical Emission Spectrometry (NH)

Manual Equivalent Method: EQL-1290-080

“Determination of Lead Concentration in Ambient Particulate Matter by Inductively Coupled Argon Plasma-Optical 

Emission Spectrometry (State of New Hampshire),” State of New Hampshire, Department of Environmental Services, 

Laboratory Service Unit, 6 Hazen Drive (P.O. Box 95), Concord, NH 03302-0095.

Federal Register: Vol. 55, page 49119, 11/26/90

Inductively Coupled Argon Plasma-Optical Emission Spectrometry (PA)

Manual Equivalent Method: EQL-0592-086

“Determination of Lead Concentration in Ambient Particulate Matter by Inductively Coupled Argon Plasma-Optical 

Emission Spectrometry (Commonwealth of Pennsylvania),” Commonwealth of Pennsylvania, Department of Environmental 

Resources, P.O. Box 2357, Harrisburg, PA 17105-2357.

Federal Register: Vol. 57, page 20823, 05/15/92

Inductively Coupled Argon Plasma-Optical Emission Spectrometry (Pima, AZ)

Manual Equivalent Method: EQL-0995-109

“Determination of Lead Concentration in Ambient Particulate Matter by Inductively Coupled Argon Plasma-Optical 

Emission Spectrometry (Pima County, Arizona),” Pima County, Wastewater Management Department, 201 North Stone 

Avenue, Tucson, Arizona 85701-1207.

Federal Register: Vol. 60, page 54684, 10/25/95
Pb List of Designated Reference and Equivalent Methods, February 1, 2011 Page 40

Inductively Coupled Argon Plasma-Mass Spectrometry (Pima Co., AZ)

Manual Equivalent Method: EQL-0995-110

“Determination of Lead Concentration in Ambient Particulate Matter by Inductively Coupled Plasma-Mass Spectrometry 

(Pima County, Arizona),” Pima County, Wastewater Management Department, 201 North Stone Avenue, Tucson, Arizona 

85701-1207.

Federal Register: Vol. 60, page 54684, 10/25/95

Inductively Coupled Argon Plasma-Optical Emission Spectrometry (RI)

Manual Equivalent Method: EQL-0888-068

“Determination of Lead Concentration in Ambient Particulate Matter by Inductively Coupled Argon Plasma-Optical 

Emission Spectrometry (State of Rhode Island),” State of Rhode Island Department of Health, Air Pollution Laboratory, 50 

Orms Street, Providence, RI 02904

Federal Register: Vol. 53, page 30866, 08/16/88

Inductively Coupled Argon Plasma-Optical Emission Spectrometry (Silver Valley)

Manual Equivalent Method: EQL-1288-070

“Determination of Lead Concentration in Ambient Particulate Matter by Inductively Coupled Argon Plasma-Optical 

Emission Spectrometry (Silver Valley Laboratories),” Silver Valley Laboratories, Inc., P.O. Box 929, Kellogg, ID 83837.

Federal Register: Vol. 53, page 48974, 12/05/88

Inductively Coupled Argon Plasma-Atomic Emission Spectrometry (TNRCC)

Manual Equivalent Method: EQL-0400-140

“Determination of Lead Concentration in Ambient Particulate Matter by Inductively Coupled Argon Plasma-Atomic 

Emission Spectrometry (TNRCC),” Texas Natural Resource Conservation Commission Laboratory, 5144 E. Sam Houston 

Parkway N., Houston, TX 77030.

Federal Register: Vol. 65, page 26603, 05/8/00

Inductively Coupled Argon Plasma-Optical Emission Spectrometry (WV)

Manual Equivalent Method: EQL-0694-096

“Determination of Lead Concentration in Ambient Particulate Matter by Inductively Coupled Argon Plasma-Optical 

Emission Spectrometry (State of West Virginia),” State of West Virginia, Department of Commerce, Labor and 

Environmental Resources, Division of Environmental Protection, 1558 Washington Street East, Charleston, WV 25311-2599

Federal Register: Vol. 59, page 29429, 06/07/94

Wavelength Dispersive X-Ray Fluorescence Spectrometry (CA)

Manual Equivalent Method: EQL-0581-052

“Determination of Lead Concentration in Ambient Particulate Matter by Wavelength Dispersive X-Ray Fluorescence 

Spectrometry,” California Department of Health Services, Air & Industrial Hygiene Laboratory, 2151 Berkeley Way, 

Berkeley, CA 94704.

Federal Register: Vol. 46, page 29986, 06/04/81

Inductively Coupled Plasma - Mass Spectrometry (Inter-Mountain Labs, Inc.)

Manual Equivalent Method: EQL-0310-189

“Procedure for Determination of Lead in Ambient TSP by Hot Plate Acid Extraction and ICP-MS Analysis,” where total 

suspended particulate matter (TSP ) is collected according to 40 CFR Appendix B to part 50, EPA Reference Method for the 

Determination of Suspended Particulate Matter in the Atmosphere (High-Volume Method), extracted on a hot plate with 3M 

HNO3 according to 40 CFR Appendix G to part 50, EPA Reference Method for the Determination of Lead in Suspended 

Particulate Matter Collected from Ambient Air, and analyzed by Inductively Coupled Plasma-Mass Spectrometry (ICP-MS) 

based on EPA SW-846 Method 6020A. 

Federal Register: Vol. 75, page 9894, 0304/2010
Pb List of Designated Reference and Equivalent Methods, February 1, 2011 Page 41

Inductively Coupled Plasma - Mass Spectrometry (US EPA/OAQPS)

Manual Equivalent Method: EQL-0510-191

“Determination of Lead Concentration in TSP by Inductively Coupled Plasma Mass Spectrometry (ICP-MS) with Heated 

Ultrasonic Nitric and Hydrochloric Acid Filter Extraction,” where total suspended particulate matter (TSP) is collected 

according to 40 CFR Appendix B to part 50, EPA Reference Method for the Determination of Suspended Particulate Matter 

in the Atmosphere (High-Volume Method), extracted with a solution of nitric and hydrochloric acids, heated to 80° C and 

sonicated for one hour, brought to a final volume of 40mL, and analyzed by Inductively Coupled Plasma-Mass Spectrometry 

(ICP-MS) based on EPA SW-846 Method 6020A. 

Federal Register: Vol.75, page 30022, 05/28/10

Inductively Coupled Plasma - Mass Spectrometry (US EPA/Region 9)

Manual Equivalent Method: EQL-0710-192

„„Heated Nitric Acid Hot Block Digestion and ICP/MS Analysis for Lead (Pb) on TSP High-Volume Filters.‟‟ In this 

method, total suspended particulate matter (TSP) is collected on glass fiber filters according to 40 CFR Appendix B to part 

50, EPA Reference Method for the Determination of Suspended Particulate Matter in the Atmosphere (High-Volume 

Method), extracted with a solution of nitric acid, heated on a hot block to 95°C for one hour, and brought to a final volume of 

50 mL. The lead content of the sample extract is analyzed by Inductively Coupled Plasma-Mass Spectrometry (ICP–MS) 

based on EPA Method 200.8 and SW–846 Method 6020A.

Federal Register: Vol.75, page 45627, 08/03/10
Notes List of Designated Reference and Equivalent Methods, February 1, 2011 Page 42

Notes

1 Users should be aware that designation of this analyzer for operation on ranges less than the range specified in the 

performance specifications for this analyzer (40 CFR 53, Subpart B) is based on meeting the same absolute performance 

specifications required for the specified range. Thus, designation of these lower ranges does not imply commensurably better 

performance than that obtained on the specified range.

2 This analyzer is approved for use, with proper factory configuration (if applicable), on either 50 or 60 Hertz line frequency 

and nominal power line voltages of 115 VAC and 230 VAC, or similar voltages as specified in the operation or instruction 

manual associated with the method.
TSP List of Designated Reference and Equivalent Methods, February 1, 2011 Page 43

U.S. EPA Reference and Equivalent Methods for Ambient Air

Particulate Matter – TSP

TSP Manual Method

Method Designation No. Method Code

Reference method (high-volume) — 802
PM10 List of Designated Reference and Equivalent Methods, February 1, 2011 Page 44

Particulate Matter – PM10

PM10 Samplers

Method Designation No. Method Code

Andersen Instruments RAAS10-100 RFPS-0699-130 130

Andersen Instruments RAAS10-200 RFPS-0699-131 131

Andersen Instruments RAAS10-300 RFPS-0699-132 132

BGI Model PQ100 RFPS-1298-124 124

BGI Model PQ200 RFPS-1298-125 125

Ecotech Model 3000 PM10 High Volume Sampler RFPS-0706-162 162

New Star Environmental Model NS-6070 RFPS-0202-141 141

Oregon DEQ Medium volume sampler RFPS-0389-071 071

Rupprecht & Patashnick Partisol 2000 RFPS-0694-098 098

R & P Partisol-FRM Model 2000 RFPS-1298-126 126

R & P Partisol-Plus Model 2025 Seq. RFPS-1298-127 127

Sierra-Andersen/GMW 1200 RFPS-1287-063 063

Sierra-Andersen/GMW 321-B RFPS-1287-064 064

Sierra-Andersen/GMW 321-C RFPS-1287-065 065

Sierra-Andersen/GMW SA241, SA241M Dichot. RFPS-0789-073 073

Thermo Scientific Partisol 2000 RFPS-0694-098 098

Thermo Scientific Partisol 2000-FRM RFPS-1298-126 126

Thermo Scientific Partisol-Plus 2025 Sequential RFPS-1298-127 127

Tisch Environmental Model TE-6070 RFPS-0202-141 141

W&A/Thermo Electron Mod 600 HVL RFPS-1087-062 062

PM10 Analyzers

Method Designation No. Method Code

Andersen Instruments FH62I-N Beta EQPM-0990-076 076

DKK-TOA FPM-222/222C/223/223C EQPM-0905-156 156

DKK-TOA DUB-222(S)/223(S) EQPM-0905-156 156

Environnement S.A. MP101M Beta EQPM-0404-151 151

Horiba APDA-371 EQPM-0798-122 122

Met One BAM1020, GBAM1020, BAM1020-1, GBAM1020-1 Beta EQPM-0798-122 122

OPSIS SM200 EQPM-0810-193 193

R & P TEOM 1400, 1400a EQPM-1090-079 079

Thermo Andersen Series FH 62 C14 Beta Monitor, 5014i Beta EQPM-1102-150 150

Thermo Scientific TEOM 1400AB, 1405 EQPM-1090-079 079

W&A/Thermo Electron 650 Beta Gauge EQPM-0391-081 081
PM2.5 List of Designated Reference and Equivalent Methods, February 1, 2011 Page 45

Particulate Matter – PM2.5

PM2.5 Samplers

Method Designation No. Method Code

Andersen Model RAAS2.5-200 Audit RFPS-0299-128 128

BGI PQ200/200A RFPS-0498-116 116

BGI PQ200-VSCC or PQ200A-VSCC EQPM-0202-142 142

BGI PQ200-VSCC or PQ200A-VSCC RFPS-0498-116 116

Graseby Andersen RAAS2.5-100 RFPS-0598-119 119

Graseby Andersen RAAS2.5-300 RFPS-0598-120 120

Horiba APDA-371 EQPM-0308-170 170

Met One BAM-1020 PM-2.5 [FEM] EQPM-0308-170 170

R & P Partisol-FRM 2000 PM-2.5 RFPS-0498-117 117

R & P Partisol-FRM 2000 PM-2.5 [FEM] EQPM-0202-143 143

R & P Partisol-FRM 2000 PM-2.5 [FEM] RFPS-0498-117 117

R & P Partisol 2000 PM-2.5 Audit RFPS-0499-129 129

R & P Partisol 2000 PM-2.5 FEM Audit EQPM-0202-144 144

R & P Partisol 2000 PM-2.5 FEM Audit RFPS-0499-129 129

R & P Partisol-Plus 2025 PM-2.5 Seq. RFPS-0498-118 118

R & P Partisol-Plus 2025 PM-2.5 [FEM] Seq. EQPM-0202-145 145

R & P Partisol-Plus 2025 PM-2.5 [FEM] Seq. RFPS-0498-118 118

Thermo Electron RAAS2.5-100 FEM EQPM-0804-153 153

Thermo Electron RAAS2.5-100 FEM RFPS-0598-119 119

Thermo Electron RAAS2.5-200 FEM EQPM-0804-154 154

Thermo Electron RAAS2.5-200 FEM RFPS-0299-128 128

Thermo Electron RAAS2.5-300 FEM EQPM-0804-155 155

Thermo Electron RAAS2.5-300 FEM RFPS-0598-120 120

Thermo Environmental Model 605 CAPS RFPS-1098-123 123

Thermo Scientific Partisol® 2000-D Dichot. EQPS-0509-177 177

Thermo Scientific Dichot. Partisol® -Plus Model 2025-D Seq. EQPS-0509-179 179

Thermo Scientific Partisol 2000-FRM RFPS-0498-117 117

Thermo Scientific Partisol 2000-FRM EQPM-0202-143 143

Thermo Scientific Partisol-Plus 2025 Sequential RFPS-0498-118 118

Thermo Scientific Partisol-Plus 2025 Sequential EQPM-0202-145 145

URG-MASS100 RFPS-0400-135 135

URG-MASS300 RFPS-0400-136 136

PM2.5 Analyzers

Method Designation No. Method Code

Thermo Scientific FH62C14-DHS Continuous, 5014i EQPM-0609-183 183

Thermo Scientific Model 5030 SHARP EQPM-0609-184 184

Thermo Scientific TEOM® 1400a with Series 8500C FDMS® EQPM-0609-181 181

Thermo Scientific TEOM® 1405-DF Dichot. with FDMS® EQPM-0609-182 182
PM10-2.5 List of Designated Reference and Equivalent Methods, February 1, 2011 Page 46

Particulate Matter – PM10-2.5

PM10-2.5 Samplers

Method Designation No. Method Code

BGI Inc. Model PQ200 PM10-2.5 sampler pair RFPS-1208-173 173

Met One Instruments BAM-1020 System EQPM-0709-185 185

Thermo Scientific Partisol® Model 2000 sampler pair RFPS-0509-175 175

Thermo Scientific Partisol® -Plus Model 2025 Sequential sampler pair RFPS-0509-176 176

Thermo Scientific Partisol® 2000-D Dichot. EQPS-0509-178 178

Thermo Scientific Dichot. Partisol® -Plus Model 2025-D Seq. EQPS-0509-180 180
SO2 List of Designated Reference and Equivalent Methods, February 1, 2011 Page 47

Sulfur Dioxide

SO2 Manual Methods

Method Designation No. Method Code

Reference method (pararosaniline) — 097

Technicon I (pararosaniline) EQS-0775-001 097

Technicon II (pararosaniline) EQS-0775-002 097

SO2 Analyzers

Method Designation No. Method Code

Advanced Pollution Instr. 100 EQSA-0990-077 077

Advanced Pollution Instr. 100A/100AS EQSA-0495-100 100

Asarco 500 EQSA-0877-024 024

Beckman 953 EQSA-0678-029 029

Bendix 8303 EQSA-1078-030 030

Casella ML9850, ML9850B EQSA-0193-092 092

Columbia Scientific Industries 5700 EQSA-0494-095 095

Dasibi 4108 EQSA-1086-061 061

DKK-TOA Corp. GFS-32 EQSA-0701-115 115

DKK-TOA Corp. GFS-112E, GFS-112E-1 EQSA-0100-133 133

DKK-TOA Corp. GFS-312E EQSA-1107-168 168

Ecotech ML9850/EC9850, ML9850B/EC9850B EQSA-0193-092 092

Ecotech EC9850T EQSA-0193-092 092

Ecotech Serinus 50 EQSA-0809-188 188

Environnement S.A AF21M EQSA-0292-084 084

Environnement S.A AF22M EQSA-0802-149 149

Environnement S.A. SANOA EQSA-0400-138 138

Horiba Model APSA-360/APSA-360ACE EQSA-0197-114 114

Horiba Model APSA-370 EQSA-0506-159 159

Lear Siegler AM2020 EQSA-1280-049 049

Lear Siegler SM1000 EQSA-1275-005 005

Meloy SA185-2A EQSA-1275-006 006

Meloy SA285E EQSA-1078-032 032

Meloy SA700 EQSA-0580-046 046

Monitor Labs 8450 EQSA-0876-013 513

Monitor Labs or Lear Siegler 8850 EQSA-0779-039 039

Monitor Labs or Lear Siegler 8850S EQSA-0390-075 075

Opsis AB OPS50 EQSA-0809-188 188

Opsis AR 500, System 300 (open path) EQSA-0495-101 101

Philips PW9700 EQSA-0876-011 511

Philips PW9755 EQSA-0676-010 010

SERES SF 2000 G EQSA-0810-194 194

SIR S.A. S-5001 EQSA-0507-166 166

Teledyne-Advanced Pollution Inst. 100A, !00 AS, 100E, 100EU, T100,

T100U EQSA-0495-100 100
SO2 List of Designated Reference and Equivalent Methods, February 1, 2011 Page 48

SO2 Analyzers

Method Designation No. Method Code

Teledyne Analytical Instruments 6400A EQSA-0495-100 100

Teledyne Monitor Labs ML9850, ML9850B EQSA-0193-092 092

Teledyne Monitor Labs TML-50 EQSA-0495-100 100

Thermo Electron 43 EQSA-0276-009 009

Thermo Electron 43A, 43C-TLE, 43i EQSA-0486-060 060

Thermo Environmental Instruments 43B, 43C EQSA-0486-060 060

Wedding 1040 EQSA-0193-092 092
O3 List of Designated Reference and Equivalent Methods, February 1, 2011 Page 49

Ozone

O3 Analyzers

Method Designation No. Method Code

2B Technologies Model 202 EQOA-0410-190 190

Advanced Pollution Instr. 400/400A/400E EQOA-0992-087 087

Beckman 950A RFOA-0577-020 020

Bendix 8002 RFOA-0176-007 007

Casella ML9810, ML9810B, ML9811, ML9812 EQOA-0193-091 091

Columbia Scientific Industries 2000 RFOA-0279-036 036

Dasibi 1003-AH, -PC, -RS EQOA-0577-019 019

Dasibi 1008-AH, -PC, -RS EQOA-0383-056 056

DKK-TOA Corp. GUX-113E, GUX-113E-1 EQOA-0200-134 134

DKK-TOA Corp. GUX-313E EQOA-1107-169 169

Ecotech ML9810/EC9810, -9810B, -9811, -9812 EQOA-0193-091 091

Ecotech Serinus 10 EQOA-0809-187 187

Environics 300 EQOA-0990-078 078

Environnement S.A O341M EQOA-0895-105 105

Environnement S.A O342M EQOA-0206-148 148

Environnement S.A SANOA EQOA-0400-137 137

Horiba APOA-360 EQOA-0196-112 112

Horiba APOA-370 EQOA-0506-160 160

McMillan 1100-1 RFOA-1076-014 514

McMillan 1100-2 RFOA-1076-015 515

McMillan 1100-3 RFOA-1076-016 016

Meloy OA325-2R RFOA-1075-003 003

Meloy OA350-2R RFOA-1075-004 004

Monitor Labs 8410E RFOA-1176-017 017

Monitor Labs or Lear Siegler 8810 EQOA-0881-053 053

Opsis AB OPS10 EQOA-0809-187 187

Opsis AR 500, System 300 (open path) EQOA-0495-103 103

PCI Ozone Corp. LC-12 EQOA-0382-055 055

Philips PW9771 EQOA-0777-023 023

Seres Model OZ 2000 G EQOA-0506-161 161

SIR S.A. S-5014 EQOA-0207-164 164

Tanabyte 722, 723, 724, 725, 726 EQOA-0407-165 165

Teledyne - Advanced Pollution Instr. 400, 400A, 400E, T400 EQOA-0992-087 087

Teledyne Monitor Labs ML9810/9810B, ML9811, ML9812 EQOA-0193-091 091

Teledyne Monitor Labs TML-10 EQOA-0992-087 087

Thermo Electron or Thermo Environmental Instruments 49, 49C, 49i EQOA-0880-047 047

Wedding 1010 EQOA-0193-091 091
CO List of Designated Reference and Equivalent Methods, February 1, 2011 Page 50

Carbon Monoxide

CO Analyzers

Method Designation No. Method Code

Beckman 866 RFCA-0876-012 012

Bendix 8501-5CA RFCA-0276-008 008

Casella ML9830, ML9830B RFCA-0992-088 088

Dasibi 3003 RFCA-0381-051 051

Dasibi 3008 RFCA-0488-067 067

DKK-TOA Corp. GFC-311E RFCA-0907-167 167

Ecotech Serinus 30 RFCA-0509-174 174

Ecotech ML9830/EC9830, ML9830B/EC9830B RFCA-0992-088 088

Ecotech EC9830T RFCA-0992-088 088

Environnement S.A CO11M RFCA-0995-108 108

Environnement S.A CO12M RFCA-0206-147 147

Horiba AQM-10, -11, -12 RFCA-1278-033 033

Horiba 300E/300SE RFCA-1180-048 048

Horiba APMA-360 RFCA-0895-106 106

Horiba APMA-370 RFCA-0506-158 158

MASS – CO 1 (Massachusetts) RFCA-1280-050 050

Monitor Labs 8310 RFCA-0979-041 041

Monitor Labs or Lear Siegler 8830 RFCA-0388-066 066

MSA 202S RFCA-0177-018 018

Opsis AB OPS 30 RFCA-0509-174 174

SIR S.A. Model S-5006 RFCA-0708-172 172

Teledyne Adv. Pollution Instr. 300, 300E, 300EU, T300, T300U RFCA-1093-093 093

Teledyne Monitor Labs ML9830/9830B RFCA-0992-088 088

Teledyne Monitor Labs TML-30 RFCA-1093-093 093

Thermo Electron or Thermo Environmental Instruments 48, 48C, 48i, 

48iTLE RFCA-0981-054 054

Wedding 1020 RFCA-0992-088 088
NO2 List of Designated Reference and Equivalent Methods, February 1, 2011 Page 51

Nitrogen Dioxide

NO2 Manual Methods

Method Designation No. Method Code

Sodium arsenite (orifice) EQN-1277-026 084

Sodium arsenite/Technicon II EQN-1277-027 084

TGS-ANSA (orifice) EQN-1277-028 098

NO2 Analyzers

Method Designation No. Method Code

Advanced Pollution Instr. 200 RFNA-0691-082 082

Advanced Pollution Instr. 200A/200AU RFNA-1194-099 099

Beckman 952A RFNA-0179-034 034

Bendix 8101-B RFNA-0479-038 038

Bendix 8101-C RFNA-0777-022 022

Casella ML9841, ML9841A, ML9841B RFNA-1292-090 090

Columbia Scientific Indust.1600, 5600 RFNA-0977-025 025

Dasibi 2108 RFNA-1192-089 089

DKK-TOA Corp GLN-114E, GLN-114E-1 RFNA-0798-121 121

DKK-TOA Corp GLN-314E RFNA-0508-171 171

Ecotech ML9841A/EC9841A,ML9841B/EC9841B RFNA-1292-090 090

Ecotech EC9841T RFNA-1292-090 090

Ecotech Serinus 40 RFNA-0809-186 186

Environnement S.A. AC31M RFNA-0795-104 104

Environnement S.A. AC32M RFNA-0202-146 146

Environnement S.A. SANOA EQNA-0400-139 139

Horiba APNA-360 RFNA-0196-111 111

Horiba APNA-370 RFNA-0506-157 157

Meloy NA530R RFNA-1078-031 031

Monitor Labs 8440E RFNA-0677-021 021

Monitor Labs or Lear Siegler 8840 RFNA-0280-042 042

Monitor Labs or Lear Siegler 8841 RFNA-0991-083 083

Monitor Labs ML9841 RFNA-1292-090 090

Opsis AB OPS40 RFNA-0809-186 186

Opsis AR 500, System 300 (open path) EQNA-0495-102 102

Philips PW9762/02 RFNA-0879-040 040

Seres Model NOx 2000 G RFNA-0706-163 163

SIR S.A. S-5012 RFNA-0804-152 152

Teledyne-Advanced Pollution Inst. 200A, 200AU, 200E, 200EU, T200, 

T200U RFNA-1194-099 099

Teledyne Analytical Instruments 9110A RFNA-1194-099 099

Teledyne Monitor Labs ML9841, ML9841A, ML9841B RFNA-1292-090 090

Teledyne Monitor Labs TML-41 RFNA-1194-099 099

Thermo Electron or Thermo Environmental Instruments 14B/E RFNA-0179-035 035

Thermo Electron or Thermo Environmental Instruments 14D/E RFNA-0279-037 037
NO2 List of Designated Reference and Equivalent Methods, February 1, 2011 Page 52

NO2 Analyzers

Method Designation No. Method Code

Thermo Environmental Instr. 42, 42C, 42i RFNA-1289-074 074

Wedding 1030 RFNA-1292-090 090
Pb List of Designated Reference and Equivalent Methods, February 1, 2011 Page 53

Lead

Pb Manual Methods

Method Designation No. Method Code

Reference method (hi-vol/AA spect.) — 803

Hi-vol/AA spect. (alt. extr.) EQL-0380-043 043

Hi-vol/Energy-disp XRF (TX ACB) EQL-0783-058 058

Hi-vol/Energy-disp XRF (NEA) EQL-0589-072 072

Hi-vol/Flameless AA (EMSL/EPA) EQL-0380-044 044

Hi-vol/Flameless AA (Houston) EQL-0895-107 107

Hi-vol/Flameless AA (Omaha) EQL-0785-059 059

Hi-vol/ICAP spect. (Doe Run Co.) EQL-0196-113 113

Hi-vol/ICAP spect. (EMSL/EPA) EQL-0380-045 045

Hi-vol/ICAP spect. (Illinois) EQL-1193-094 094

Hi-vol/ICAP spect. (Kansas) EQL-0592-085 085

Hi-vol/ICAP spect. (Montana) EQL-0483-057 057

Hi-vol/ICAP spect. (NE&T) EQL-1188-069 069

Hi-vol/ICAP spect. (New Hampshire) EQL-1290-080 080

Hi-vol/ICAP spect. (Pennsylvania) EQL-0592-086 086

Hi-vol/ICAP-OE spect. (Pima Co.,AZ) EQL-0995-109 109

Hi-vol/ICAP-MS spect. (Pima Co.,AZ) EQL-0995-110 110

Hi-vol/ICAP spect. (Rhode Island) EQL-0888-068 068

Hi-vol/ICAP spect. (Silver Val. Labs) EQL-1288-070 070

Hi-vol/ICAP spect. (TNRCC) EQL-0400-140 140

Hi-vol/ICAP spect. (West Virginia) EQL-0694-096 096

Hi-vol/WL-disp. XRF (CA A&IHL) EQL-0581-052 052

Hi-vol/ICP-MS spect. (IML, Inc) EQL-0310-189 189

Hi-Vol/ICP-MS spect. (US EPA/OAQPS) EQL-0510-191 191

Hi-Vol/ICP-MS spect. (US EPA/Region 9) EQL-0710-192 192
Sources/Contacts List of Designated Reference and Equivalent Methods, February 1, 2011 Page 54

Sources or Contacts for Designated Reference and Equivalent Methods

2B Technologies, Inc.

2100 Central Ave., Suite 105 

Boulder, CO 80301

(303) 273-0559

http://www.twobtech.com

ABB Process Analytics

P.O. Box 831

Lewisburg, WV 24901

(304) 647-4358

Advanced Pollution Instrumentation, Inc.

[Refer to Teledyne - Advanced Pollution 

Instrumentation, Inc.]

Andersen Instruments

[Refer to Thermo Fisher Scientific, Inc.]

ASARCO Incorporated

3422 South 700 West

Salt Lake City, UT 84119 

(801) 262-2459

Beckman Instruments, Inc.

Process Instruments Division

2500 Harbor Blvd.

Fullerton, CA 92634

(714) 871-4848

Bendix

[Refer to ABB Process Analytics]

BGI Incorporated

58 Guinan Street

Waltham, MA 02451

(781) 891-9380

www.bgiusa.com (bgiinc@attglobal.net)

Casella Monitor 

Regent House, Wolseley Road, Kempston

Bedford, United Kingdom MK42 7JY

www.casellameasurement.com

Columbia Scientific Industries

11950 Jollyville Road

Austin, TX 78759

(800) 531-5003

Combustion Engineering

[Refer to ABB Process Analytics]

Dasibi Environmental Corp.

[Formerly, 506 Paula Avenue

Glendale, CA 91201

(818) 247-7601

www.dasibi.com

DKK-TOA Corporation

29-10, 1-Chome, Takadanobaba,

Shinjuku-ku

Tokyo 169-8648, Japan

www.toadkk.co.jp

Ecotech Pty. Ltd.

1492 Ferntree Gully Rd.

Knoxfield, Victoria, 3180, Australia

+61 1300 364 946

www.ecotech.com.au

Environnement S.A

111, bd Robespierre

78300 Poissy, France

www.environnement-sa.com

Instruments also available from:

Altech/Environnement U.S.A.

2623 Kaneville Court

Geneva, IL 60134

(630) 262- 4400

Environics, Inc.

69 Industrial Park Rd. E.

Tolland, CT 06084-2805

(203) 429-0077

www.environics.com

Graseby GMW

[Refer to Thermo Fisher Scientific, Inc.]

Horiba Instruments Incorporated

17671 Armstrong Avenue

Irvine, CA 92714

(800) 446-7422

www.horiba.com

Inter-Mountain Labs, Inc.

1673 Terra Avenue

Sheridan, WY 82801

(307) 672-8945

www.intermountainlabs.com

Lear Siegler

[Refer to Teledyne Monitor Labs, Inc.]

Commonwealth of Massachusetts

Department of Environmental

Quality Engineering

Tewksbury, MA 01876

Met One Instruments, Inc.

1600 Washington Blvd.

Grants Pass, OR 97526

(541) 471-7111

www.metone.com (metone@metone.com)

McMillan

[Refer to Columbia Scientific Industries]

Mine Safety Appliances

600 Penn Center Blvd.

Pittsburgh, PA 15235-5810

(412) 273-5101

Monitor Labs, Inc.

[Refer to Teledyne Monitor Labs, Inc.]

New Star Environmental, LLC

3293 Ashburton Chase NE

Roswell, GA 30075

(770) 998-2590

Opsis AB, Furulund, Sweden

Instruments also available from:

Opsis, Inc.

150 N. Michigan Ave., Suite 1950

Chicago, IL 60601

(312) 447-7733

www.opsis.se

State of Oregon

Department of Environmental Quality

Air Quality Division

811 S.W. Sixth Avenue

Portland, OR 97204
Sources/Contacts List of Designated Reference and Equivalent Methods, February 1, 2011 Page 55

PCI Ozone Corp.

One Fairfield Crescent

West Caldwell, NJ 07006

(201) 575-7052

www.pci-wedeco.com

Phillips Electronic Instruments, Inc.

85 McKee Drive

Mahwah, NJ 07430

Rupprecht & Patashnick Co., Inc.

[Refer to Thermo Fisher Scientific, Inc.]

[26 Tech Valley Drive]

[East Greenbush, NY 12061]

[(518) 452-0065]

[www.rpco.com ]

Sibata Scientific Technology, Ltd.

1-25, 3-chome

Ikenohata, Taito-ku

Tokyo 110, Japan

81-3(3822)2272

TTani@email.msn.com

Seres

360 Rue Louis de Broglie

La Duranne - BP 87000

13793 Aix en Provence - Cedex 3

FRANCE

+33 (0)4 42 97 37 37

www.seres-france.com

SIR S.A. (Sistemas Instalaciones y Redes, 

S.A.)

Avenida de la Industria, 3

Tres Cantos 28760 Madrid, SPAIN

(+34) 91 803 66 02

http://www.sirsa.es

SIR USA

826 West Braddock Road

Alexandria, VA 22302-3605

(703) 837-1883

Tanabyte Engineering, Inc.

1210 West Burbank Blvd., Suite B,

Burbank, CA 91506

(818) 842-4022

www.tanabyte.com

Teledyne - Advanced Pollution 

Instrumentation, Inc.

9480 Carroll Park Drive

San Diego, CA 92121-5201

(858) 657-9800

www.teledyne-api.com

Teledyne Analytical Instruments

16830 Chestnut Street

City of Industry, CA 91748

(626) 934-1622

Teledyne Monitor Labs, Inc.

74 Inverness Drive East

Englewood, CO 80112-5189

(303) 792-3300

www.teledyne-ml.com

Thermo Electron Corporation

[Refer to Thermo Fisher Scientific, Inc.]

[27 Forge Parkway]

[Franklin, MA 02038]

[(508) 520-0430 / (866) 282-0430]

www.thermo.com

Thermo Environmental Instruments, Inc.

[Refer to Thermo Fisher Scientific, Inc.]

www.thermoei.com

Thermo Fisher Scientific, Inc.

81 Wyman Street

Waltham, MA 02454

(781) 622-1000 / (800) 678-5599

www.thermo.com

Tisch Environmental, Inc.

145 S. Miami Avenue

Village of Cleves, OH 45002

(513) 467-9000

www.tisch-env.com

URG Corporation

116 Merritt Mill Road

Chapel Hill, NC 27516

(919) 942-2753

U.S. EPA

National Exposure Research Laboratory

Human Exposure & Atmospheric

Sciences Division 

Process Modeling Research Branch 

(MD D205-03)

Research Triangle Park, NC 27711

(919) 541- 5691

www.epa.gov/heasd

U.S. EPA

Office of Air and Radiation

Air Quality Planning and Standards

Air Quality Assessment Division 

(MD C404-03)

Research Triangle Park, NC 27711

(919) 541- 3372

www.epa.gov/air

U.S. EPA

Region 9 Laboratory

1337 South 46th Street, Bldg 201

Richmond, CA 94804

Wedding and Associates, Inc.

[Refer to Thermo Fisher Scientific, Inc.]