

Cylinder part numbers have a 2 digit suffix which indicate the cylinder size for that particular gas mixture. The 2 digit suffix numbers indicate the following cylinders:
no suffix = 17 liter steel cylinder (17L)
-01 = 34 liter steel cylinder (34L)
-02 = 58 liter aluminum cylinder (58AL)
-03 = 103 liter steel cylinder (103L)
-04 = 34 liter aluminum cylinder (34AL)
-05 = 58 liter steel cylinder (58L)
-08 = 29 liter aluminum cylinder (29AL)
No Suffix, -01
17 Liter and 34 Liter
Steel Cylinder

-02
58 Liter Aluminum

-03
103 Liter Steel

-04
34 Liter Aluminum

-05
58 Liter Steel

-08
29 Liter Aluminum

| Part Number | Description |
| 81-0000RK | H2, 1000 ppm in air, 17L |
| 81-0000RK-01 | H2, 1000 ppm in Air, 34L |
| 81-0000RK-03 | H2, 1000 ppm in Air, 103L |
| 81-0000RK-21 | H2, 2000 ppm in Air, 34L |
| 81-0000RK-23 | H2, 2000 ppm in Air, 103L |
| 81-0000RK-31 | H2, 4000 ppm in Air, 34L |
| 81-0000RK-33 | H2, 4000 ppm in Air, 103L |
| 81-0000RK-41 | H2, 3000 ppm in Air, 34L |
| 81-0000RK-61 | H2, 5000 ppm in Air, 34L |
| 81-0000RK-73 | H2, 500 ppm in Air, 34L |
| 81-0001RK | H2, 25% LEL in Air, 17L |
| 81-0001RK-21 | H2, 1.2%(30% LEL) in Air, 34L |
| 81-0001RK-23 | H2, 1.2%(30% LEL)in Air, 103L |
| 81-0001RK-31 | H2, 1.3% vol (33 % LEL)in Air, 34L |
| 81-0002RK | H2, 50% LEL in Air, 17L |
| 81-0002RK-01 | H2, 50% LEL in Air, 34L |
| 81-0002RK-03 | H2, 50% LEL in Air, 103L |
| 81-0003RK | Propane, 25% LEL in Air, 17L |
| 81-0003RK-01 | Propane, 25% LEL in Air, 34L |
| 81-0003RK-03 | Propane, 25% LEL in Air, 103L |
| 81-0004RK | Propane, 50% LEL in Air, 17L |
| 81-0004RK-01 | Propane, 50% LEL in Air, 34L |
| 81-0004RK-03 | Propane, 50% LEL/Air, 103L |
| 81-0006RK-01 | nButane, 9000 ppm/Air, 34L |
| 81-0007RK | Hexane, 15% LEL/Air, 17L |
| 81-0007RK-01 | Hexane, 15% LEL/Air, 34L |
| 81-0008RK-01 | Hexane, 15% LEL/12% O2 in N2, 34L |
| 81-0009RK | Hexane, 44% LEL in Air, 17L |
| 81-0010RK | Methane, 10% LEL in Air, 17L |
| 81-0010RK-01 | Methane, 10% LEL in Air, 34L |
| 81-0010RK-03 | Methane, 10% LEL in Air, 103L |
| 81-0011RK | Methane, 10% vol in N2, 17L |
| 81-0011RK-01 | Methane, 10% vol in N2, 34L |
| 81-0012RK | Methane, 50% LEL in Air, 17L |
| 81-0012RK-01 | Methane, 50% LEL in Air, 34L |
| 81-0012RK-03 | Methane, 50% LEL/Air, 103L |
| 81-0012RK-21 | Methane, 25% LEL in Air, 34L |
| 81-0013RK | Methane, 50% volume in N2, 17L |
| 81-0013RK-01 | Methane, 50% volume in N2, 34L |
| 81-0013RK-05 | Methane, 50% volume in N2, 58L steel |
| 81-0014RK | IPA, 10% LEL in Air, 17L size (8 liters gas) 120 psi |
| 81-0016RK-05 | Methane 100% volume, 58L steel |
| 81-0018RK | isobutane 50% LEL in Air, 17L |
| 81-0018RK-01 | isobutane 50% LEL in Air, 34L |
| 81-0018RK-03 | isobutane 50% LEL in Air, 103L |
| 81-0019RK | isobutane 10% in N2, 17L |
| 81-0021RK-01 | isobutane 20% LEL in Air, 34L |
| 81-0062RK-01 | Carbon Monoxide, 50 ppm in N2, 34L |
| 81-0062RK-03 | Carbon Monoxide, 50 ppm in N2, 103L |
| 81-0063RK | Carbon Monoxide, 20 ppm in Air, 17L |
| 81-0063RK-01 | Carbon Monoxide, 20 ppm in Air, 34L |
| 81-0064RK | CO, 50 ppm in Air, 17L |
| 81-0064RK-01 | CO, 50 ppm in Air, 34L |
| 81-0064RK-03 | CO, 50 ppm in Air, 103L |
| 81-0065RK | CO, 100 ppm in Air, 17L |
| 81-0065RK-01 | CO, 100 ppm in Air, 34 liter |
| 81-0065RK-03 | CO, 100 ppm in Air, 103L |
| 81-0066RK | CO, 200 ppm in Air, 17L |
| 81-0066RK-01 | CO, 200 ppm in Air, 34L |
| 81-0066RK-03 | CO, 200 ppm in Air, 103L |
| 81-0068RK | CO, 100 ppm in N2, 17L |
| 81-0068RK-01 | CO, 100 ppm in N2, 34L |
| 81-0068RK-03 | CO, 100 ppm in N2, 103L |
| 81-0069RK | CO, 200 ppm in N2, 17L |
| 81-0069RK-01 | CO, 200 ppm in N2, 34L |
| 81-0069RK-03 | CO, 200 ppm in N2, 103L |
| 81-0070RK | CO2, 2000 ppm in N2, 17L |
| 81-0070RK-01 | CO2, 2000 ppm in N2, 34L |
| 81-0070RK-03 | CO2, 2000 ppm in N2, 103L |
| 81-0071RK | CO2, 5000 ppm in N2, 17L |
| 81-0071RK-01 | CO2, 5000 ppm in N2, 34L |
| 81-0071RK-03 | CO2, 5000 ppm in N2, 103L |
| 81-0072RK | CO2, 2.5% in N2, 17L |
| 81-0072RK-01 | CO2, 2.5% in N2, 34L |
| 81-0072RK-03 | CO2, 2.5% in N2, 103L |
| 81-0073RK | CO2, 15% in N2, 17L |
| 81-0073RK-01 | CO2, 15% in N2, 34L |
| 81-0073RK-03 | CO2, 15% in N2, 103L |
| 81-0074RK | O2, 2% in N2, 17L |
| 81-0075RK | O2, 10% in N2, 17L |
| 81-0075RK-01 | O2, 10% in N2, 34L |
| 81-0075RK-03 | O2, 10% in N2, 103L |
| 81-0076RK | Zero Air, 17L |
| 81-0076RK-01 | Zero Air, 34 L |
| 81-0076RK-03 | Zero Air, 103L |
| 81-0078RK | N2 100%, 17L |
| 81-0078RK-01 | N2 100%, 34L |
| 81-0078RK-03 | N2 100%, 103L |
| 81-0079RK-03 | Methane, 500 ppm in Air, 103L |
| 81-0080RK-03 | Methane, 50 ppm in Air, 103L |
| 81-0081RK | R-22 (Freon 22), 2000 ppm in Air, 17L |
| 81-0081RK-01 | R-22 (Freon 22), 2000 ppm in Air, 34L |
| 81-0082RK | R-12 (Freon-12), 2000 ppm/Air, 17L |
| 81-0082RK-01 | R-12 (Freon-12), 2000 ppm/Air, 34L |
| 81-0082RK-03 | R-12 (Freon-12), 2000 ppm/Air, 103L |
| 81-0083RK-03 | Hexane, 400 ppm in Air, 103L |
| 81-0083RK-04 | Hexane, 400 ppm in Air, 34AL |
| 81-0084RK-01 | R-134A (Freon 134A), 2, 000 ppm in Air, 34L |
| 81-0085RK-01 | Methane, 1000 ppm in Air, 34L |
| 81-0085RK-03 | Methane, 1000 ppm Air, 103L |
| 81-0086RK | Methane, 5000 ppm in Air, 17L |
| 81-0086RK-01 | Methane, 5000 ppm in Air, 34L |
| 81-0086RK-03 | Methane, 5000 ppm Air, 103L |
| 81-0089RK-01 | CO 50 ppm / Hexane 15% LEL / O2 12 % in N2, 34L |
| 81-0089RK-03 | CO 50 ppm / Hexane 15% LEL / O2 12 % in N2, 103L |
| 81-0090RK | CO 50 ppm / Methane 50% LEL / O2 12 % in N2, 17L |
| 81-0090RK-01 | CO 50 ppm / Methane 50% LEL / O2 12 % in N2, 34L |
| 81-0090RK-03 | CO 50 ppm / Methane 50% LEL / O2 12 % in N2, 103L |
| 81-0091RK | Pentane 25% LEL / CO 100 ppm / OX 19% in N2, 17L |
| 81-0092RK-03 | Propane 50 % LEL / CO 50 ppm / O2 12% in N2, 103L |
| 81-0093RK | Pentane 25% LEL / CO 50 ppm / O2 12% in N2, 17L |
| 81-0093RK-03 | Pentane 25% LEL / CO 50 ppm / O2 12% in N2, 103L |
| 81-0094RK | nbutane 50% LEL / O2 12% / N2, 17L |
| 81-0101RK | CH4, 50% LEL CH4/17% O2, 17L |
| 81-0101RK-03 | CH4, 50% LEL CH4/17% O2, 103L |
| 81-0102RK-04 | Toluene 400 ppm in Air, 34L |
| 81-0149RK-02 | H2S 5 ppm in N2, 58AL |
| 81-0150RK-02 | H2S 10 ppm in N2, 58AL |
| 81-0151RK-02 | H2S 25 ppm in N2, 58AL |
| 81-0151RK-04 | H2S 25 ppm in N2, 34AL |
| 81-0152RK-02 | H2S 50 ppm in N2, 58AL |
| 81-0153RK-02 | H2S 50 ppm in AIR, 58AL |
| 81-0154RK-02 | H2S 25 ppm /CO 50 ppm / CH4 50% LEL / O2 12% in N2, 58AL |
| 81-0154RK-04 | H2S 25 ppm /CO 50 ppm / CH4 50% LEL / O2 12% in N2, 34AL |
| 81-0154RK-08 | H2S 25 ppm /CO 50 ppm / CH4 50% LEL / O2 12% in N2, 29AL |
| 81-0155RK-02 | H2S 25 ppm /CO 50 ppm / HEX 15% LEL / O2 12% in N2, 58AL |
| 81-0155RK-04 | H2S 25 ppm /CO 50 ppm / HEX 15% LEL / O2 12% in N2, 34AL |
| 81-0156RK-02 | H2S 25 ppm /CO 50 ppm /Pentane 32% LEL / O2 14% in N2, 58AL |
| 81-0158RK-04 | H2S 25 ppm /CO 50 ppm /isobutane 50%LEL / O212% in N2, 34AL |
| 81-0158RK-08 | H2S 25 ppm /CO 50 ppm /isobutane 50%LEL / O212% in N2, 29AL |
| 81-0159RK-02 | SO2 5 ppm /CO 50 ppm / CH4 50%LEL / O212% in N2, 58AL |
| 81-0165RK-02 | Silane 5 ppm in N2, 58AL |
| 81-0170RK-02 | SO2 5 ppm in N2, 58AL |
| 81-0170RK-04 | SO2 5 ppm in N2, 34AL |
| 81-0175RK-02 | Ammonia, 10 ppm in N2, 58AL |
| 81-0175RK-04 | Ammonia, 10 ppm in N2, 34AL |
| 81-0176RK-02 | Ammonia, 25 ppm in N2, 58AL |
| 81-0176RK-04 | Ammonia, 25 ppm in N2, 34AL |
| 81-0177RK-03 | Nitrogen Trifluoride, 25 ppm in N2, 103L |
| 81-0180RK-02 | NO2, 10 ppm in Air, 58AL |
| 81-0180RK-04 | NO2, 10 ppm in Air, 34AL |
| 81-0181RK-02 | NO, 25 ppm in N2, 58AL |
| 81-0181RK-04 | NO, 25 ppm in N2, 34AL |
| 81-0185RK-02 | Phosphine, 0.5 ppm in N2, 58AL |
| 81-0185RK-04 | Phosphine, 0.5 ppm in N2, 34AL |
| 81-0190RK-02 | Cl2, 5 ppm in N2, 58AL |
| 81-0190RK-04 | Cl2, 5 ppm in N2, 34AL |
| 81-0191RK-02 | Cl2, 10 ppm in N2, 58AL |
| 81-0191RK-04 | Cl2, 10 ppm in N2, 34AL |
| 81-0192RK-02 | Cl2, 2 ppm in N2, 58AL |
| 81-0192RK-04 | Cl2, 2 ppm in N2, 34AL |
| 81-0194RK-02 | HCl, 10 ppm in N2, 58AL |
| 81-0195RK-02 | HCl, 5 ppm in N2, 58AL |
| 81-0195RK-04 | HCl, 5 ppm in N2, 34AL |
| 81-0196RK-02 | HCN, 10 ppm in N2, 58AL |
| 81-0196RK-04 | HCN, 10 ppm in N2, 34AL |