EPA Protocol Gases

Two Components Equipment Recommendation: To maintain product quality at the point of use, see Level 1 gas supply system, page 121. Two stage regulator SGVSGT160, page 134.

Cylinder Volume Product Code Product Code Calibration Standard Size SCF Concentration EPA Protocol NIST Traceable Carbon Dioxide CGA590 A31 148 50-1499 ppm — 725400 in Zero Air A16 84 1500-9999 ppm 723500 725500 A07 33 1-20% 723600 725600 Carbon Dioxide CGA580 A31 144 50-1499 ppm — 725700 in Nitrogen A16 82 1500-9999 ppm 723700 725800 A07 32 1-20% 703000 725900 Carbon Monoxide CGA 590 A31 148 3-9.9 ppm 723800 726000 in Zero Air A16 84 10-99 ppm 723900 726100 A07 33 100-999 ppm 724000 726200 0.1-3% 703100 726300 Carbon Monoxide CGA 350 A31 144 3-9.9 ppm 724100 726400 in Nitrogen A16 82 10-99 ppm 724200 726500 A07 32 100-999 ppm 724300 726600 0.1-10% 703200 720800 Hydrogen Sulfide CGA 660 A31 144 2-26 ppm 724400 726700 in Nitrogen A16 76 A07 29 Methane CGA 590 A31 148 0.5-130 ppm 720900 726800 in Air A16 84 A07 33 Methane CGA 350 A31 148 0.5-130 ppm 721000 721100 in Nitrogen A16 84 A07 33 Nitric Oxide CGA 660 A31 144 2-49 ppm 724500 726900 in Nitrogen A16 82 50-499 ppm 724600 727000 A07 32 500-4000 ppm 703300 727100 Oxygen CGA 580/590 A31 144 6000-9999 ppm 721200 727200 in Nitrogen A16 82 1-23% 703400 727300

A07 32 Propane CGA 590 A31 148 1-99 ppm 724700 727400 in Zero Air A16 84 100-649 ppm 703500 727500 A07 33 650-999 ppm 724800 727600 Propane CGA 350 A31 144 1-99 ppm 724900 727700 in Nitrogen A16 82 100-999 ppm 703600 727800 A07 32 0.1-2.6% 721300 727900 Sulfur Dioxide CGA 660 A31 148 15-99 ppm 725000 728000 in Zero Air A16 84 100-4500 ppm 725100 728100 Sulfur Dioxide CGA 660 A31 144 15-99 ppm 725200 728200 in Nitrogen A16 82 100-4500 ppm 725300 728300

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EPA Protocols

Three Components**

Equipment Recommendation: To maintain product quality at the point of use, see Level 1 gas supply system, page 121.

Product Code Product Code Product Code Calibration Standard Concentration EPA Protocol NIST Traceable Primary

Sulfur and Nitric Dioxide Oxide (SO

(NO) 2

) Lowest

Component in Nitrogen (N

2

) Concentration

Pressure @ 70oF 2000 PSIG 1-4.9 ppm — — 718400 CGA Valve Outlet 660

5-29.9 ppm — — 718500

30-99 ppm 712600 716800 718600

Cylinder Size Volume SCF

A16 80

100-999 712700 716900 718700 A31 145

0.1-1% 704000 717000 718800

Other three component mixtures available please contact your Linde representative. ** Supplied in specially treated Stability GuardTM aluminum cylinders guaranteed for six (6) months stability.

Four Components**

Equipment Recommendation: To maintain product quality at the point of use, see Level 1 gas supply system, page 121.

Product Code Product Code Product Code Calibration Standard Concentration EPA Protocol NIST Traceable Primary

Lowest Sulfur and Nitric Dioxide Oxide (SO

(NO) 2

) Component

Concentration and Carbon Monoxide (CO) in Nitrogen (N

2

)

1-4.9 ppm — — 718900 Pressure @ 70oF 2000 PSIG CGA Valve Outlet 660

5-29.9 ppm — — 719000

30-99 ppm 712800 717100 719100 Cylinder Size Volume SCF

A16 80 A31 145

100-999 712900 717200 719200

0.1-1.0% 704200 717300 719300

Other four component mixtures available please contact your Linde representative. ** Supplied in specially treated Stability GuardTM aluminum cylinders guaranteed for six (6) months stability.

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