Source: http://slideplayer.com/slide/1595872/
Timestamp: 2016-12-09 12:24:50
Document Index: 220149846

Matched Legal Cases: ['art 72', 'art 72', 'arts 60', 'art 60', 'art 75', 'art 1', 'arts 72']

EPA Methods 3A, 6C, 7E, 10 & 20 Corrections to May 15, 2006 Final Rule That Updated the Methods That Updated the Methods Foston Curtis US EPA. - ppt download
Published byRianna Goodloe
Presentation on theme: "EPA Methods 3A, 6C, 7E, 10 & 20 Corrections to May 15, 2006 Final Rule That Updated the Methods That Updated the Methods Foston Curtis US EPA."— Presentation transcript:
EPA Methods 3A, 6C, 7E, 10 & 20 Corrections to May 15, 2006 Final Rule That Updated the Methods That Updated the Methods Foston Curtis US EPA 2
Updated Methods Method 3A – O2 & CO2 Method 6C – SO2 Method 7E – NOx Method 10 – CO Method 20 – NOx/SO2/Diluent 3
Update of Methods 3A, 6C, 7E, 10, and 20 Purpose Harmonize Consistent Equipment Requirements Consistent Performance Tests Calibration Gases & Ranges Simplify & Make Flexible Make Equipment Performance-Based Instead of Technology- Based Allow Verifications by Manufacturer Update Relax Outdated Requirements Incorporate Recently Accepted Options & New Techniques Address Dilution Sampling Systems 4
EPA Methods 3A, 6C, 7E, 10 & 20 In This Talk A Discussion of Technical Corrections Clarifications 5
Rule Clarifications on Website 6
Stratification Test Requirement Clarifications Stratification Test Required at Each Site Only 1 Stratification Test/Group of Methods No Need to Test Stacks < 4 8
Sample Collection Clarifications Method 20 – Min. Test Run Time = 21 Min. Single-Point OK for Stacks < 4 9
Dilution Sampling Systems No Initial Bias Test for Dilution Sampling Systems 10
General Equipment Specifications Performance Based - OK If Can Pass Interference Check, CE, System Bias Tests Before Sample Conditioning – Maintain Components Above Gas Dew Point Components Not Included in System Bias Check Must Be SS, Teflon, or Glass 11
Calibration Gas Clarifications Zero Air Part 72.2 Definition for Zero Air Materials SOx/NOx/VOC < 0.1 ppm CO < 1 ppm CO2 < 400 ppm Part 72.2 Definition for Zero Air Material Method 3A High Calibration Gas May Use Precleaned or Scrubbed Air 12
Calibration Gas Clarifications Must Obtain Gas Quality Certificate from Gas Manufacturer Analyzers That Measure NO & NO2 w/o Using Converter – Must Calibrate With Both NO & NO2 13
Interference Test - Clarifications Table 7E-3 Lists Example Test Gases Must Address All Potential Interferences May Be Verified by the Manufacturer Test Gases - Manufacturer-Certified One Initial Test Per Analyzer Make & Model Repeat for Non-model Replacement Parts Current Analyzers Grandfathered 14
Calibration Drift Section 3.9 of Method 7E Difference between measurement system readings for pre- & post-bias checks Should read: Difference between pre- and post-run system bias checks 16
System Bias Check Particulate Media Included Only When Using Out-of-Stack Filters 17
Method 7E NO 2 Converter Check May Be Performed Before or After a Test or After a Series of Tests 18
Converter Efficiency Check Direct Conversion of NO 2 Gas Protocol Traceable Gas Unstable Use Manufacturer-Certified Gas Use Mid- to High-Concentration Range Gas Instead of ppm Gas Other, Lower Concentrations Also Allowed 19
Converter Efficiency Check Method 20 Bag Procedure Procedure Amendment Secondary Steps For Determining Conversion Efficiency Were Confusing - Dropped Acceptance Criterion: 2% Drop from NOx Peak Requirement to Introduce Test Gas Upstream of Dilution Assembly For Sample Dilution Systems has been Dropped 20
Manufacturer Stability Test Use Procedures Similar to 40 CFR (not or as listed in Final Rule) Stability Against Test Site Variations in Temperature* Line Voltage* For Routine Analyses Below 20 ppm Performed by Manufacturer or Tester One Time Test 21
Alternative Dynamic Spike Check Optional in place of: Bias Test Interference Check Best on Steady-State Process Approval Required for CAMD Tests 22
Converter Eff. Calculation Corrections Old Method 20 Converter Check Calculation Final Rule Incorrect Equation Correct Equation 23
Calculation Corrections/Revisions System Calibration Error Calculation Missing DF in Eq. 7E-3 24
Calculations Corrections/Revisions Dynamic Spike Recovery Calculation Final Rule Incorrect Equation Correct Equation 25
Calculations Corrections/Revisions Missing Sample Concentration Calculation When Using a Zero Gas Final Rule Equation for Non-Zero Gas Added Equation For Zero Gas Download ppt "EPA Methods 3A, 6C, 7E, 10 & 20 Corrections to May 15, 2006 Final Rule That Updated the Methods That Updated the Methods Foston Curtis US EPA."
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