Standard requirements for obtaining an intrinsic safety explosion-proof certificate for methane monitoring devices
1、 Certification standards:
1. GB/T 3836.1-2021 Explosive Atmosphere Part 1: General Requirements for Equipment
2. GB/T 3836.4-2021 Explosive Atmosphere Part 4- Equipment Protected by Intrinsic Safety Type "i"
2、 List of Certification Materials:
1. Technical drawings: schematic diagram, structural diagram, PCB diagram, intrinsic safety parameters, etc
2. Battery specification sheet
3. SRRC certificate or wireless transmission power report of wireless transmission module
4. Product manual, enterprise standards, etc
3、 Explosion proof mark: Ex ib Ⅱ B T4 Gb
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