Bump Test vs Calibration for Gas Detectors (2026 Guide)
A bump test proves gas reaches the sensors and the alarms fire; a calibration check verifies the numbers; a full calibration corrects them. This guide quotes OSHA's gas-monitor bulletin on all three, the ISEA before-each-day's-use rule, the failure ladder, NIST-traceable gas and expiration rules, and a worked daily crew routine.