This verification regulation is applicable to the verification for all new-built, in-use or repaired portable methane-carbon monoxide detectors (hereinafter referred to as detector).
The detector is mainly used for the measurement and warning of methane and carbon monoxide concentration below the coalmine well. The detector is composed of methane sensors, carbon monoxide sensors and secondary meter.
I Overview
II Technical Requirements
III Verification Condition
IV Verification Items and Methods
V Treatment of the verification results and verification periods
Appendix
This verification regulation is applicable to the verification for all new-built, in-use or repaired portable methane-carbon monoxide detectors (hereinafter referred to as detector).
The detector is mainly used for the measurement and warning of methane and carbon monoxide concentration below the coalmine well. The detector is composed of methane sensors, carbon monoxide sensors and secondary meter.
Contents of JJG(COAL)12-1998
I Overview
II Technical Requirements
III Verification Condition
IV Verification Items and Methods
V Treatment of the verification results and verification periods
Appendix
