MT/T 757-1997 General technical conditions of the tube bundle monitoring system for coal mine spontaneous combustion

MT/T 757-2019 Coal spontaneous combustion duct monitoring system general technical specification

GB 191-1990 GB/T 2423.1-1989 GB/T 2423.2-1989 GB/T 2423.4-1993 Basic environmental testing procedures for electric and electronic products—Test Db:Damp heat, cyclic GB/T 2423.5-1995 Environmental testing for electric and electronic products—Part 2:Test methods—Test Ea and guidance:Shock GB/T 2423.10-1995 Environmental testing for electric and electronic products—Part 2:Test methods—Test Fc and guidance:Vibration (Sinusoidal) GB 3836.1-1983 GB 3836.2-1983 GB 3836.3-1983 GB 3836.4-1983 GB 4208-1993 Degrees of protection provided by enclosure (IP code) GB/T 6388-1986 Transport package shipping mark GB/T 10111-1988 Methods for random sampling by utilizing dices of random number GB/* 11166-1989 MT 210-1990 The basic test methods for electrical products used in coal mine communication, detection, and control MT 382-1995 Mining smoke sensor general technical specification MT/T 408-1995 Coal mine DC voltage stabilizer power supply MT 443-1995 Sensor for Underground Coal Mine Environment Monitoring General Technical Requirements MT 444-1995 Low Concentration Catalytic Sensor for Coal Mine Methane Monitoring Technical Specification MT 445-1995 Technical specification for high concentration thermal conductivity type methane sensor used in coal mines MT 446-1995 Technical specification for electrochemical carbon monoxide sensor in coal mine MT 447-1995 The technical specifications for electrochemical oxygen sensors in coal mines ZB N52 003-1988 ZB Y324-1985