**APPENDIX III**

**TEST METHOD FORMULAS AND NOMENCLATURE**[last updated February 13, 2009] 

### GEL Engineering, LLC A Member of The GEL Group, Inc.

TEST METHODS FORMULAS FOR STACK TESTING
INDEX

page

1. AREAS 2

2. TEMPERATURE CONVERSIONS 2

3. VOLUME OF AIR COLLECTED 3

4. MOISTURE DETERMINATION 3

5. MOLECULAR WEIGHT OF STACK GAS 3

6. FLOW DETERMINATIONS 4

7. ISOKINETICS DETERMINATION 5

8. POLLUTANT DETERMINATIONS 5

9. POLLUTANT CORRECTIONS 7

10. EFFICIENCY EQUATIONS 8

11. METHOD 8 EQUATIONS 8

12. NOMINAL NOZZLE SIZE 9

13. F-FACTOR EQUATIONS 9

14. CYCLONIC FLOW 11

15. METHOD 5 POST TEST CALIBRATION 11

16. WET BULB/DRY BULB 12

17. VOLUME PER POINT (ISOKINETIC TESTING) 12

18. INSTRUMENT TESTING 13

19. HEAT INPUT 13

20. CONVERSION FACTORS 14

21. CONSTANTS 15

22. NOMENCLATURE 16Page 2 1. AREAS

1.1 Area of Stack, Square feet (Round Stack)

A s = D s(width ) 2 π
4 ⎛ ⎝ ⎜ ⎞ ⎠ ft 2

144 in 2 ⎛ ⎝ ⎜ ⎞ ⎠

1.2 Area of Stack, Square feet (Square Stack)

A s = D s(width ) 

### ( ) D s(depth ) 

### ( ) ft 2

144 in 2 ⎛ ⎝ ⎜ ⎞ ⎠

1.3 Area of Nozzle, Square feet

A n = D n 2 π
4 ⎛ ⎝ ⎜ ⎞ ⎠ ft 2

144 in 2 ⎛ ⎝ ⎜ ⎞ ⎠

2. TEMPERATURE CONVERSIONS

2.1 Temperature, Degrees Celsius—> Degrees Fahrenheit

T o F= T o C 

# ( ) 9/ 5 

### ( ) + 32

2.2 Dry Gas Meter Temperature, Degrees Fahrenheit—>Degrees Rankin

T m o R= T m o F + 460

2.3 Stack Temperature, Degrees Fahrenheit—> Degrees Rankin

T s o R= T s o F + 460Page 3 3. VOLUME OF AIR COLLECTED

3.1 Volume of Dry Gas Sample, Corrected to Standard Conditions (cubic feet)

V m(std) = V m 

### ( ) Y 

### ( ) T std
T m ° R ⎛ ⎝ ⎞ ⎠ P bar + Δ H

13.6 ⎛ ⎝ ⎞ ⎠

P std

3.2 Volume of Dry Gas Sample, Corrected to Standard Conditions (liters)

V m(std) = V m 

### ( ) Y 

### ( ) P bar 

### ( ) T std 

### ( )

T m ° R 

### ( ) P std 

### ( )

4. MOISTURE DETERMINATION

4.1 Volume of Water Vapor Condensed in Impingers, Corrected to Standard Conditions

V wc(std) = V lc 

### ( ) 0.04707 

### ( )

4.2 Volume of Water Vapor Collected in Silica Gel, Corrected to Standard Conditions

V wsg(std) = V wsg 

### ( ) 0.04715 

### ( )

4.3 Water Vapor in the Stack Gas, Proportion by Volume

B ws = V wc(std) + V wsg(std)
V wc(std) + V wsg(std) +V m(std)

4.4 Dry Mole Fraction of Flue Gas

M fd =1-B ws

5. MOLECULAR WEIGHT OF STACK GAS

5.1 Nitrogen Content of Stack Gas, Percent

%N 2dry = 100 - %CO 2dry - %O 2dry - %CO dryPage 4 5.2 Dry Molecular Weight of the Stack Gas

M d = 0.44 %CO 2dry 

### ( ) + 0.32 %O 2 dry 

### ( ) + 0.28 %N 2dry + %CO dry 

### ( )

5.3 Wet Molecular Weight of the Stack Gas

M s = M d 

### ( ) M fd 

### ( ) + 18 B ws 

### ( )

5.4 Sample Gas Density, pounds per cubic foot

P s(sgd) = M d 

### ( ) M fd 

### ( ) + 18 

### ( ) 1

− M fd 

### ( )

385.3

5.5 Total Weight of Gas Sampled, pound

W sg = V m(std) + V wc(std) + V wsg(std) 

### ( ) P s(std) 

### ( )

5.6 Excess Air, percent

%EA = %O 2dry - 0.5 

### ( ) %CO dry 

### ( )

0.264 

### ( ) %N 2 dry 

### ( )

− %O 2dry

− 0.5 

### ( ) %CO dry 

### ( ) 

## ( ) ⎛
⎝ ⎜ ⎞ ⎠

⎟ 100

6. FLOW DETERMINATIONS

6.1 Absolute Stack Gas Pressure

P s = P bar

+ P g 13.6

6.2 Average Stack Gas Velocity, feet per second

V s = K p 

### ( ) C p 

### ( ) Δ P 

# ( ) T s ° R

P s 

### ( ) M s 

### ( )

6.3 Wet Volumetric Stack Gas Flow Rate, Actual Conditions, cubic feet per minute



### ( )( ) ⎟ ⎠ ⎞ ⎜ ⎝ ⎛

= min sec60 AVQ

ssaPage 5 6.4 Dry Volumetric Stack Gas Flow Rate, Corrected to Standard Conditions, cubic feet per hour

Q s = V s 

### ( ) A s 

### ( ) 3600 sec

hr ⎛ ⎝ ⎞ ⎠ M fd 

### ( ) P s T s ⎛ ⎝ ⎞ ⎠ T std
P std ⎛ ⎝ ⎞ ⎠

7. ISOKINETICS DETERMINATION

7.1 Raw Isokinetic Variation, Percent

Raw %I = T s ° R 

### ( ) K4 

### ( ) V lc 

### ( ) + V m T m ° R ⎛ ⎝ ⎞ ⎠ ⎛ ⎝ ⎞ ⎠ P bar + Δ H

13.6 ⎛ ⎝ ⎞ ⎠ ⎛ ⎝ ⎞ ⎠

60 

### ( ) V s 

### ( ) P s 

### ( ) θ 

### ( ) A n 

### ( ) ⎛

⎝ ⎜ ⎜ ⎜ ⎞

⎠

⎟ ⎟ 100

K 4 = 0.002676

7.2 Isokinetic Variation, Percent

%I = T s ° R 

### ( ) V m(std) 

### ( ) P std 

### ( )

60 

### ( ) V s 

### ( ) P s 

### ( ) θ 

### ( ) A n 

### ( ) M fd 

### ( ) T std 

### ( ) ⎛ ⎝ ⎜ ⎞ ⎠

⎟ 100

7.3 Determining K-Factor

K = 846.72 

### ( ) D n 4 

## ( ) Δ H@ 

### ( ) C p 2 

## ( ) M fd 2 

## ( ) M d 

### ( ) T m ° R 

### ( ) P s 

### ( )

M s 

### ( ) T s ° R 

### ( ) P m 

### ( ) ⎛ ⎝ ⎜ ⎞ ⎠

⎟

7.4 Determining DH

Δ H = K 

### [ ] Δ P

8. POLLUTANT DETERMINATIONS

8.1 Concentration of Pollutant, Grains per Dry Standard Meter

C sd = M n V

mstd ⎛ ⎝ ⎞ ⎠ g 1,000,000 μ g ⎛ ⎝ ⎜ ⎞ ⎠ 15.432 grains

g ⎛ ⎝ ⎜ ⎞ ⎠Page 6 8.2 Concentration of Pollutant, Milligrams per Dry Standard Cubic Meter

⎟ ⎟ ⎠ ⎞ ⎜ ⎜ ⎝ ⎛ ⎟ ⎟ ⎠ ⎞ ⎜ ⎜ ⎝ ⎛

μ ⎟ ⎠ ⎞ ⎜ ⎝ ⎛

3 3

mstd

n sd m ft 5.315 g 1,000 g
V

M = C 3

8.3 Emission Rate for Pollutant, Grains per Dry Standard Cubic Foot —> Pounds per Hour

M p = C sd 

### ( ) Q s 

### ( ) lb 7000 gr ⎛ ⎝ ⎜ ⎞ ⎠

8.4 Emission Rate for Pollutant, Pounds per Hour—> Pounds per Million BTU



## ( ) ⎟ ⎠ ⎞ ⎜ ⎝ ⎛

− ⎟ ⎟ ⎠ ⎞ ⎜ ⎜ ⎝ ⎛

=

2 %9.20 9.20 Q O F

s M M p

pBtu

8.5 Emission Rate of Pollutant based on Production Rate, Pounds per Hour—> Pounds per Ton

M pro = M p P ⎛ ⎝ ⎞ ⎠

8.6 Emission Rate of Pollutant, Actual Flowrate, Parts per Million -> Pounds per Hour

M p = M n 1,000,000 ⎛ ⎝ ⎞ ⎠ Q a



### ( ) m 3

35.315 dscf ⎛ ⎝ ⎜ ⎞ ⎠ mole

0.02404 m 3 ⎛ ⎝ ⎞ ⎠ P s T s ° R ⎛ ⎝ ⎞ ⎠ T std
P std ⎛ ⎝ ⎞ ⎠ MW g

mole ⎛ ⎝ ⎞ ⎠ lb 453.6 g ⎛ ⎝ ⎜ ⎞ ⎠

8.7 Emission Rate of Pollutant, Standard Flowrate, Parts per Million -> Pounds per Hour

M p = M n 1,000,000 ⎛ ⎝ ⎞ ⎠ Q s



### ( ) m 3

35.315 dscf ⎛ ⎝ ⎜ ⎞ ⎠ mole

0.02404 m 3 ⎛ ⎝ ⎞ ⎠ MW g

mole ⎛ ⎝ ⎞ ⎠ lb 453.6 g ⎛ ⎝ ⎜ ⎞ ⎠Page 7 9. POLLUTANT CORRECTIONS

9.1 Concentration Correction to 12% Carbon Dioxide

C s12 = C s 

### ( ) 12

%CO 2dry ⎛ ⎝ ⎞ ⎠

9.2 Concentration Correction to 50% Excess Air Concentration

C s50 = C s 

### ( ) 100 +%EA

150 ⎛ ⎝ ⎞ ⎠

9.3 Concentration Correction to 50% Excess Air Concentration using Raw ORSAT Data

C s50 = C s

1- 1.5 

### ( ) %O 2dry 

### ( )

− 0.133 

### ( ) %N 2dry 

### ( )

− 0.75 

### ( ) %COdry 

### ( )

21 ⎛ ⎝ ⎜ ⎞ ⎠

9,4 Leak Rate Adjustment

Vm = Vm

− L 1

− L a 

### ( ) 

## [ ] θ

− L 1

− L a 

### ( )

i = 2 N 

## ∑ θ i

− (L p − L a ) θ p

9.5 Concentration of Pollutant, Corrected for Moisture, ppm

M n = M n M fd ⎛ ⎝ ⎞ ⎠

9.6 Concentration of Volatile Organic Compounds, Corrected to Standard Conditions, ppm as Carbon

M n VOC [ ] = M np 

### ( ) 3 Carbon
Propane ⎛ ⎝ ⎜ ⎞ ⎠

M fd ⎛

⎝ ⎜ ⎜ ⎜ ⎞

⎠

⎟ ⎟ ⎟

9.7 Concentration of Pollutant, Corrected for Oxygen, ppm

M n = M n 

### ( ) 20.9 - %O 2Corr 20.9 - %O 2dry ⎛ ⎝ ⎞ ⎠Page 8 9.8 Concentration of Pollutant (CO, NOx), Corrected for Carbon Dioxide, ppm

M n = M n 

### ( ) 1 - %CO 2dry
100 ⎛ ⎝ ⎞ ⎠

10. EFFICIENCY EQUATIONS

10.1 Capture Efficiency, percent

%C = M p(outlet )
M

p(inlet) ⎛ ⎝ ⎞ ⎠ 100

10.2 Destruction Reduction Efficiency, percent

%DRE = M p(inlet) - M p(outlet )
M

p(inlet ) ⎛ ⎝ ⎞ ⎠ 100

11. METHOD 8 EQUATIONS

11.1 Emission Rate of Pollutant (SO 2 ), pounds/cubic foot

C SO 2 = K 3 

### ( ) N V t − V tb 

### ( ) V solution
V

aliquot ⎛ ⎝ ⎞ ⎠

Vm std ⎛

⎝ ⎜ ⎜ ⎜ ⎞

⎠

⎟ ⎟

K3 = 7.061 × 10 -5 lb / meq

11.2 Emission Rate of Pollutant (H 2 SO 4 ), pounds/cubic foot

C H 2SO 4 = K 2 

### ( ) N V t − V tb 

### ( ) V solution
V aliquot ⎛ ⎝ ⎞ ⎠

V

mstd ⎛

⎝ ⎜ ⎜ ⎜ ⎞

⎠

⎟ ⎟

K2 = 1.081 × 10 -4 lb / meqPage 9 12. NOMINAL NOZZLE SIZE

12.1 Nozzle Determination, inches

D

n = 0.0358 

### ( ) Q m 

### ( ) P m 

### ( )

T m ° R 

### ( ) C p 

### ( ) M fd 

### ( ) T s ° R 

### ( ) M s 

### ( )

P s 

### ( ) Δ P ⎛
⎝ ⎜ ⎜ ⎞
⎠ ⎟ ⎟

12.2 PM10 Nozzle Determination, inches

Dn = Qa

Cp DP 

# ( ) 85.49 * 3.1416 *60

576 ⎛ ⎝ ⎜ ⎞ ⎠

⎟ Ts ° R

Ps 

### ( ) Ms 

### ( ) ⎛

⎝ ⎜ ⎜ ⎞

⎠

⎟ ⎟

Qa is obtained from PM10 manual (acfm)

13. F-FACTOR EQUATIONS

Note: All Cs values must be in pounds per standard cubic foot (lbs/scf) See EPA 40 CFR 60, App. A, Method 9, Sec. 2.0.

Conversion Factors for Concentration
From To Multiply by g/scm ng/scm 1.00E+09 mg/scm ng/scm 1.00E+06 lb/scf ng/scm 1.60E+13 ppm SO2 ng/scm 2.66E+06 ppm NOx ng/scm 1.91E+06 ppm SO2 lb/scf 1.66E-07 ppm NOx lb/scf 1.19E-07

13.1 Oxygen-Based F Factor, Dry Basis

E = C d 

### ( ) F d 

### ( ) 20.9

20.9

− %O 2dry ⎛ ⎝ ⎞ ⎠

13.1a Oxygen-Based F Factor, Dry Basis, correcting to 7% Oxygen

E = C d 

### ( ) F d 

### ( ) 20.9

− 7.0

20.9

− %O 2dry ⎛ ⎝ ⎞ ⎠Page 10 13.2 Oxygen-Based F Factor, Wet Basis

E = C w 

### ( ) F d 

### ( ) 20.9

20.9

− %O 2dry ⎛ ⎝ ⎞ ⎠

13.3 Oxygen-Based F Factor, Dry/Wet Basis

E = C w 

### ( ) F w 

### ( )

M fd 

### ( ) 20.9

− %O 2dry
20.9 ⎛ ⎝ ⎞ ⎠

Note: When pollutant is measured on wet basis and %O2 is measured on a dry basis.

13.4 Oxygen-Based F Factor, Dry/Wet Basis

E = C w 

### ( ) F d 

### ( ) 20.9 

### ( ) M fd 

### ( )

20.9

− %O 2wet ⎛ ⎝ ⎞ ⎠

Note: When pollutant is measured on dry basis and %O2 is measured on a wet basis.

E = C dry 

### ( ) F c 

### ( ) 100

%CO 2dry ⎛ ⎝ ⎞ ⎠

13.5 Carbon Dioxide-Based Factor, Wet Basis

E = F c 

### ( ) C wet 

### ( ) 100

%CO 2wet ⎛ ⎝ ⎞ ⎠

13.6 Carbon Dioxide-Based Factor, Dry/Wet Basis

E = C w 

### ( ) F c 

### ( )

M fd ⎡ ⎣ ⎢ ⎤ ⎦ ⎥ 100

%CO 2dry ⎛ ⎝ ⎞ ⎠

Note: When pollutant is measured on wet basis and %O2 is measured on a dry basis.

13.7 Carbon Dioxide-Based Factor, Dry/Wet Basis

E = C dry 

### ( ) M fd 

### ( ) F c 

### ( ) 100

%CO 2 wet ⎛ ⎝ ⎞ ⎠

Note: When pollutant is measured on dry basis and %O2 is measured on a wet basis.Page 11 14. CYCLONIC FLOW

14.1 Average Stack Gas Velocity, feet per second (Cyclonic), used for Isokinetic Determination Only

V s[cyc] = K p 

### ( ) C p 

### ( ) Δ P 

# ( ) T s P s 

### ( ) M s 

### ( )

14.2 Average Stack Gas Velocity, feet per second (Laminar)

V s[lam] = K p 

### ( ) C p 

### ( ) cos φ Δ P 

### ( ) 

# ( ) T s P s 

### ( ) M s 

### ( )

Note: When using Microsoft Excel, the Cosine function is in Radians. To convert Degrees to Radians multiply by π /180 (where π =3.1416).

14.3 Determination of Sampling Time

Minutes / Point = cos φ Base Time 

### ( )

14.4 Average Differential Pressure

Δ P v avg = ∑ cos φ Δ P

n ⎡ ⎣ ⎢ ⎤ ⎦ ⎥ 2

14.5 Axial Volumetric Flow Rate

Q s = K p C p A s T s P s

M s Δ P i cos φ i 

# ( )

i n 

## ∑

n

15. METHOD 5 POST TEST CALIBRATION

15.1 Alternative Method 5 Post-Test Calibration

Y qa = θ

V m ⎛ ⎝ ⎞ ⎠ Δ H avg 

# ( ) P std
T std ⎛ ⎝ ⎞ ⎠ Q m 

### ( ) 2 T m ° R 

### ( ) M d(AMB) 

### ( )

Δ H @ 

### ( ) P bar + Δ H avg 13.6 ⎛ ⎝ ⎞ ⎠ M d



### ( )Page 12 15.2 CRITICAL ORIFICE

V mstd = K1 

### ( ) V m 

### ( ) P bar + Δ H

13.6
T

m ° R ⎛

⎝ ⎜ ⎜ ⎞

⎠

⎟ ⎟ V cr(std) = K co 

### ( ) θ 

### ( ) P bar
T amb ⎛ ⎝ ⎞ ⎠ Y = V cr(std)
V m(std) ⎛ ⎝ ⎞ ⎠

16. WET BULB/DRY BULB

16.1 %Moisture at Saturation As a Function of Temperature

W 2 = 10 6.6911

− 3144

T W + 390.86 ⎛

⎝ ⎜ ⎜ ⎞

⎠ ⎟ ⎟ ⎛

⎝ ⎜ ⎜ ⎞

⎠ ⎟ ⎟

P b + P

s 13.6 ⎛ ⎝ ⎞ ⎠

W 2 =Value in %Moisture at Saturation As a Function of Temperature Table

* Note: Use Equation when Stack Temperature is greater than 211°F or less than 50°F. Also use Equation if the absolute value of th e Static Stack Pressure is greater than 1.

16.2 Percent Moisture in Stack Gas

%H 2 O = W 2 − 0.000367 

### ( ) T d − T

w 

## ( ) 1 + T

w − 32

1571 ⎛ ⎝ ⎞ ⎠ ⎡ ⎣ ⎢ ⎤ ⎦ ⎥ 100 

### ( )

16.3 Water Vapor in the Stack Gas, Proportion by Volume

Bws = %H 2 O

100

17. VOLUME PER POINT (ISOKINETIC TESTING)

17.1 Volume per Point

V m
Point = 60 V s 

### ( ) P s 

### ( ) θ 

### ( ) A n 

### ( ) M fd 

### ( ) T m ° R 

### ( )

Υ 

### ( ) P bar + Δ H

13.6 ⎛ ⎝ ⎞ ⎠ T s ° R



### ( )Page 13 18. INSTRUMENT TESTING

18.1 EFFLUENT GAS CONCENTRATION

C gas = C avg − C o 

### ( ) C ma C m − C o ⎛ ⎝ ⎞ ⎠

[EPA 40 CFR 60, App. A, Method 6C, 8.0; Method 7E, 8.0]

18.2 Concentration of Carbon Monoxide, Corrected for Carbon Dioxide, ppm

M n CO [ ] = M n CO [ ] 

### ( ) 1 - %CO 2
100 ⎛ ⎝ ⎞ ⎠

[EPA 40 CFR 60, App. A, Method 10, 9.0 ]

18.3 SYSTEM CALIBRATION BIAS

System Calibration Bias = System Cal. Response - Analyzer Cal. Response Span ⎛ ⎝ ⎜ ⎞ ⎠ 100

18.4 DRIFT CHECK

%Drift = Final System Cal. Response - Initial System Cal. Response Span ⎛ ⎝ ⎜ ⎞ ⎠ 100

19. HEAT INPUT

19.1 Heat Input Rate

HI = Q s F ⎛ ⎝ ⎞ ⎠ 20.9

− %O 2
20.9 ⎛ ⎝ ⎞ ⎠Page 14 20. CONVERSION FACTORS

Conversion Factors for Concentration

From To Multiply By Reference

g/scm ng/scm 1.00E+09 EPA 40 CFR 60, App. A, Method 19

mg/scm ng/scm 1.00E+06 EPA 40 CFR 60, App. A, Method 19

lb/scf ng/scm 1.60E+13 EPA 40 CFR 60, App. A, Method 19

ppm SO2 ng/scm 2.66E+06 EPA 40 CFR 60, App. A, Method 19

ppm NOx ng/scm 1.91E+06 EPA 40 CFR 60, App. A, Method 19

ppm SO2 lb/scf 1.66E-07 EPA 40 CFR 60, App. A, Method 19

ppm NOx lb/scf 1.19E-07 EPA 40 CFR 60, App. A, Method 19

scf m 3 0.02832 EPA 40 CFR 60, App. A, Method 5

g/ft 3 gr/ft 3 15.43 EPA 40 CFR 60, App. A, Method 5

g/ft 3 lb/ft 3 2.205 X 10 -3 EPA 40 CFR 60, App. A, Method 5

g mg 0.001 EPA 40 CFR 60, App. A, Method 5Page 15 21. CONSTANTS

Constants

Abbreviation Name Value Units Reference

Kp Pitot Constant 85.49 EPA 40 CFR 60, App. A, Method 2
Mw Molecular Weight of
Water 18.0 lb/lb-mole EPA 40 CFR 60, App. A, Method 5 P(std) Standard
Pressure 29.92 In. Mercury EPA 40 CFR 60, App. A, Method 2 T(std) Standard Temperature 528 degrees Rankin EPA 40 CFR 60, App. A, Method 2
R Ideal gas

constant 21.85 ft3/lb-mole EPA 40 CFR 60, App. A, Method 5 %O2(amb) Ambient Percent Oxygen 20.9 %O2 by volume EPA 40 CFR 60, App. A, Method 3B %CO2(amb) Ambient Percent Carbon Dioxide 0.03 %O2 by volume EPA 40 CFR 60, App. A, Method 3B

ρω Density of
Water 0.002201 lb/ml EPA 40 CFR 60, App. A, Method 5

π PI 3.141622. NOMENCLATURE

Symbol Description Unit

A n Area of the Nozzle Square feet (ft 2 )

A s Area of the Stack Square feet (ft 2 )

B ws Water vapor in the stack gas Proportion by volume

B wa Moisture content of ambient air Proportion by volume

Cdry Particulate concentration, dry basis Mass/Volume

C H2SO4 Emission Rate of Hydrogen Sulfide Milligrams per cubic foot

C p Pitot Coefficient Dimensionless

C s Particulate concentration Mass/Volume

C s12 Concentration correction to 12% Mass/Volume
Carbon Dioxide

C s50 Concentration correction to 50% Mass/Volume
Excess Air

C sd Particulate concentration Grains per dry standard cubic feet (gr/dscf)

C wet Particulate concentration Mass/Volume, wet basis

D n Diameter of the Nozzle Inches (in.)

dscf Unit of Flow measurement Dry standard cubic feet

D s(depth) Depth of the stack Inches (in.)

D s(width) Width of the stack Inches (in.)

E Emission rate Mass per heat BTU input

Page 16Symbol Description Unit

F F-Factor Using F c or F d

F c F-Factor, wet basis Using C s and %CO 2 on a wet or dry basis

F d F-Factor, dry basis Using C s and %O 2 on a dry basis

F w F-Factor Using C ws and %O 2 on a wet basis

ft Unit of measurement Feet

g Unit of measurement Grams

gr Unit of measurement Grains

HI Heat Input mmBTU/hr

hr Unit of time measurement Hour

in Unit of measurement Inch

K Constant Constant used for DGM

K2 Constant used for H 2 SO 4 titrations 7.061 X 10-5 lb/meq

K3 Constant used for SO 2 titrations 7.061 X 10-5 lb/meq

K4 Constant used for Raw Isokinetics 2.676 X 10 -3 lb/meq

Kcf Constant Correction Factor Constant

Kco Constant for Critical Orifice Constant

Kp Unit Conversion Constant for Velocity 85.49

L a Average Leakrate Cubic feet

lbs Unit of Weight measurement Pounds

L i Initial Leakrate Cubic feet

Page 17Symbol Description Unit

L p Post Leakrate Cubic feet

M d Molecular weight of stack gas, dry basis Pound per pound-mole (lb/lb-mole)

M fd Mole fraction dry basis of stack gas Percent

min Unit of time measurement Minutes

mg Unit of weight measurement Milligrams

M n Mass pollutant found in sampling train Micrograms (μg)

M nVOC Mass pollutant (VOC) determined with parts per million (ppm) FID (as carbon)

M nP Mass pollutant (VOC) determined with parts per million (ppm) FID (as propane)

M p Total pollutant mass emissions rate Pounds per hour (lb/hr)

M pro Total pollutant mass emissions rate Pounds per ton (lb/ton) based on production rate

M p(Off) Total pollutant mass emissions rate, Pounds per hour (lb/hr)
while the scrubber is Off

M p(On) Total pollutant mass emissions rate Pounds per hour (lb/hr)
while the scrubber is On

M p(inlet) Total pollutant mass Pounds per hour (lb/hr) emissions rate, inlet

M p(outlet) Total pollutant mass Pounds per hour (lb/hr) emissions rate, outlet

M s Molecular weight of stack gas, Pound per pound-mole
wet basis (lb/lb- mole)

MW Molecular weight of pollutant Grams per mole (g/mole)

n Number of sampling points Number

Page 18Symbol Description Unit

P bar Barometric pressure Inches of mercury (in. of Hg)

P g Pressure of stack gas Inches of water (in. of H 2 O) (static pressure)

PMR Pollutant Mass Rate Mass per volume

ppm Unit of Measurement Parts per Million

P s Absolute stack gas pressure Inches of mercury (in. of Hg)

P s(sgd) Sample Gas Density Pounds per cubic foot

P s(std) Absolute stack gas pressure, Inches of mercury (in. of Hg)

P std Standard pressure, 29.92 in. Hg Inches of mercury (in. of Hg)

Q a Wet volumetric stack gas Actual cubic feet/hour
flow rate at actual conditions (acf/hr)

Q m Orifice Meter Calibration Dry standard cubic feet per minute (dscf/min) (Q m =0.75 cfm) [at standard conditions] Q s Dry Volumetric Stack Gas Flow Rate Dry standard cubic feet
corrected to Standard Conditions per hour (dscf/hr)

Qs(avg) Dry Volumetric Stack Gas Fl ow Rate Dry standard cubic feet corrected to Standard Conditions per hour (dscf/hr) Average flow before and after flow

measurement

T d Absolute dry gas stack temperature Degrees Rankin (°R) Dry Bulb Temperature

T m °R Absolute dry gas meter temperature Degrees Rankin (°R)

T s °R Absolute stack temperature Degrees Rankin (°R)

T std Standard temperature (528°R) Degrees Rankin (°R)

Page 19Symbol Description Unit

T w Absolute wet gas stack temperature Degrees Rankin (°R) Wet Bulb Temperature

T°C Temperature in Celsius Degrees Celsius (°C)

T°F Temperature in Fahrenheit Degrees Fahrenheit (°F)

T°R Temperature in Rankin Degrees Rankin (°R)

sec Unit of time measurement Seconds

V aliquot Volume of Aliquot Milliliter (ml)

V cr(std) Volume of gas passed through the critical Dry standard cubic feet (dcf) orifice, correct to standard conditions.

V lc Volume of water vapor condensed in Milliliter (ml) the impingers

V m Volume of gas sample as measured by the Dry cubic feet (dcf) dry gas meter

V m(std) Volume of gas sample as measured by the Dry standard cubic feet dry gas meter, corrected to standard (dscf) conditions

V m(std)(Total) Volume of gas sample as measured by the Dry standard cubic feet dry gas meter, corrected to standard (dscf) conditions

V s Average stack gas velocity Feet per second (ft/sec)

V solution Volume of Solution (Sample) Milliliter (ml)

V wsg Weight of water vapor condensed in Grams (g) silica gel

V w(std) Volume of water vapor in the gas sample, Standard cubic feet (scf)
corrected to standard conditions

V wc(std) Volume of water vapor condensed in Standard cubic feet (scf) impingers, corrected to standard conditions

Page 20Symbol Description Unit

V t Volume of Titrant used Milliliters (ml)

V tb Volume of Titrant used on Blank Milliliters (ml)

V wsg(std) Volume of water vapor condensed in Standard cubic feet (scf) silica gel, corrected to standard conditions

W sg Total weight of Gas sampled Pounds

W 2 Calculated constant, saturation %H 2 O Pounds

at Tw

Y Dry gas meter calibration factor Dimensionless

Y aq Dry gas meter calibration check value Dimensionless

Δ H@ Pressure drop across orifice meter of Inches of water (in. of H 2 O) dry gas meter

Δ H Average pressure differential across Inches of water (in. of H 2 O)
the orifice

Δ P Average velocity head of stack gas Inches of water (in. of H 2 O)

∆ P Average squareroot velocity head of Inches of water (in. of H 2 O) stack gas

%C Percent Capture Efficiency Percent (%)

%CO dry Percent carbon monoxide by volume, Percent (%) dry basis

%CO 2dry Percent carbon dioxide by volume, dry Percent (%)
basis

%CO 2wet Percent carbon dioxide by volume, wet Percent (%)
basis

%DRE Percent Destruction Reduction Efficiency Percent (%)

%EA Percent Excess Air Percent (%)

Page 21Page 22 Symbol Description Unit

%I Isokinetic Variation Percent (%)

Raw %I Raw Isokinetic Variation Percent (%)

%N 2 Percent nitrogen by volume, dry basis Percent (%)

%O 2dry Percent oxygen by volume, dry basis Percent (%)

%O 2wet Percent oxygen by volume, wet basis Percent (%)

%O 2Corr Percent oxygen Correction Factor Percent (%)

%Scrubber Percent Scrubber Efficiency Percent (%)

θ Total sampling time Minutes (min)

θ i Initial sampling time Minutes (min)

θ p Final sampling time Minutes (min)

π pi, π = 3.1416 Constant

ø Angle between velocity vector and Degrees stack axis