MSA Altair 4X Calibration Gas — 4-Gas Mix & Bump Test Gas
Calibration gas and bump-test gas for the MSA Altair 4X portable gas detector. Trigas USA cylinders are a direct drop-in replacement for MSA calibration gas — same gas, same concentration, same cylinder and C-10 fitting — at 15–30% below MSA pricing. Every cylinder is NIST-traceable with an ISO 17025 Certificate of Analysis and ships in 48 hours from our Florida facility.
The MSA Altair 4X is typically calibrated with a 4-gas confined-space mix (CO, H2S, combustible/LEL, O2). Recommended Trigas USA cylinders below; pick the size that matches your regulator and cal frequency.
Recommended calibration gas for the MSA Altair 4X
| Trigas P/N | Mixture | Cylinder | |
|---|---|---|---|
| 34L-414 | 5-Gas Calibration Mix 34L Aluminum - 300 ppm CO, 10 ppm H2S, 1.45% CH4, 58% LEL pentane, 15% O2 | 34L Aluminum | View & buy → |
| 34L-428-20 | 4-Gas Calibration Mix 34L Aluminum - 60 ppm CO, 20 ppm H2S, 29% LEL pentane, 15% O2 | 34L Aluminum | View & buy → |
| 34L-459 | 4-Gas Calibration Mix 34L Aluminum - 60 ppm CO, 20 ppm H2S, 50% LEL CH4, 15% O2 | 34L Aluminum | View & buy → |
| 58L-314S-NO2 | 4-Gas Calibration Mix 58L Aluminum - 60 ppm CO, 10 ppm NO2, 50% LEL CH4, 15% O2 | 58L Aluminum | View & buy → |
| 58L-414 | 5-Gas Calibration Mix 58L Aluminum - 300 ppm CO, 10 ppm H2S, 1.45% CH4, 58% LEL pentane, 15% O2 | 58L Aluminum | View & buy → |
| 58L-428-20 | 4-Gas Calibration Mix 58L Aluminum - 60 ppm CO, 20 ppm H2S, 29% LEL pentane, 15% O2 | 58L Aluminum | View & buy → |
| 58L-459 | 4-Gas Calibration Mix 58L Aluminum - 60 ppm CO, 20 ppm H2S, 50% LEL CH4, 15% O2 | 58L Aluminum | View & buy → |
Single-gas & specialty options
Need a single component or a custom concentration? Carbon Monoxide (CO) · Hydrogen Sulfide (H2S) · Oxygen (O2) · Methane / LEL · All 4-gas quad mixes.
Full MSA cross-reference
Have a specific MSA part number? See every MSA → Trigas USA equivalent →
Request a quote or custom mix →
MSA Altair 4X and all OEM trademarks are property of their respective owners. Trigas USA is an independent manufacturer and is not affiliated with MSA. Compatibility based on published OEM gas specifications.