Butane 25% LEL Bump Test Gas - 0.45% vol. (C4H10)
Butane 25% LEL Calibration Gas - 0.45% vol. (C4H10)
Butane 50% LEL Bump Test Gas - 0.95% vol. (C4H10)
Butane 50% LEL Calibration Gas - 0.90% vol. (C4H10)
Gasco Multi-Gas 345: 8% vol. Butane, 13.8% Carbon Dioxide, Balance Nitrogen
Gasco Multi-Gas Bump Test 345: 8% vol. Butane, 13.8% Carbon Dioxide, Balance Nitrogen
Gasco Multi-Gas Bump-It 345: 8% vol. Butane, 13.8% Carbon Dioxide, Balance Nitrogen
MSA 460345 Calibration Gas: 8% vol. Butane, 13.8% Carbon Dioxide, Balance Nitrogen
RKI Instruments 81-0006RK-01 nButane Calibration Gas - 9000 ppm (C4H10)