Each MSA Calibration Gas Cylinder is shipped with an individual copy of a material safety data sheet (MSDS) and an individual copy of a certificate of analysis. MSA certifies that the gas mixture in calibration gas cylinders was prepared gravimetrically, using NIST traceable weights. The lot number and nominal value of the gas constituents in percent by volume, percent by mass, PPM, or volume are specified on the cylinder. The uncertainty statement of the specified nominal value is also listed. Model RP and
Model RP Cylinder
| Gas Fill | 100 liters 1000 psi Model RP |
19 liters 300 psi Model R |
34 liters 500 psi Econo-Cal |
Gas Mixture | Background |
| AIR | 801050 | — | — | air zero (THC < 1 ppm) | — |
| CARBON MONOXIDE |
806255 | — | — | 400 ppm carbon monoxide | air |
| 473180 | 461769 | — | 300 ppm carbon monoxide | air | |
| 809243 | — | — | 200 ppm carbon monoxide | air | |
| 809242 | — | — | 100 ppm carbon monoxide | air | |
| 809241 | — | — | 50 ppm carbon monoxide | air | |
| 806734 | — | — | 100 ppm carbon monoxide | nitrogen | |
| HYDROGEN | 803102 | — | — | 0.8% hydrogen | air |
| ISOBUTYLENE | 494450 | — | 10048279 | 100 ppm isobutylene | air |
| METHANE | 491041 | 459942 | — | 2.5% methane | air |
| 801049 | — | — | 6.6% methane | nitrogen | |
| OXYGEN | 479857 | 468248 | — | 20.8% oxygen | nitrogen |
| 493580 | 476302 | — | 5.0% oxygen | nitrogen | |
| NITROGEN | 481317 | — | — | 100% nitrogen | — |
| NITROUS OXIDE | 806736 | — | — | 100 ppm nitrous oxide | nitrogen |
| PENTANE | 804532 | — | — | 0.75% pentane (50% LEL) | air |
| PROPANE | 493579 | — | — | 0.6% propane | air |
| COMBINATION GAS CYLINDERS |
10007047 | — | — | 0.35% pentane, 19.0% oxygen, 100 ppm carbon monoxide | nitrogen |
| 801051 | — | — | 0.6% propane, 15% oxygen, 60 ppm carbon monoxide | nitrogen | |
| 10010162 | — | — | 1.45% methane, 300 ppm carbon monoxide, 15% oxygen | nitrogen | |
| 813718 | — | — | 2.5% methane, 60 ppm carbon monoxide, 15% oxygen | nitrogen | |
| 10040791 | — | — | 2.5% methane, 300 ppm carbon monoxide, 15% oxygen | nitrogen | |
| 478192 | — | — | 1.45% methane, 15% oxygen | nitrogen |
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