GB/T 41332-2022 Technical requirements for remote detection equipment of municipal underground pipelines

GB/T 2423.1-2008 Environmental testing for electric and electronic products—Part 2:Test methods—Tests A:Cold GB/T 2423.2-2008 Environmental testing for electric and electronic products—Part 2:Test methods—Tests B:Dry heat GB/T 2423.5-2019 Environmental testing—Part 2:Test methods—Test Ea and guidance:Shock GB/T 2423.10-2019 Environmental testing—Part 2:Tests methods—Test Fc:Vibration(sinusoidal) GB/T 3836.1-2021 Explosive atmospheres—Part 1:Equipment—General requirements GB/T 3836.2-2021 Explosive atmospheres—Part 2:Equipment protection by flameproof enclosures “d” GB/T 3836.4-2021 Explosive atmospheres—art 4:Equipment protection by intrinsic safety “i” GB/T 4208-2017 Degrees of protection provided by enclosure(IP code) GB/T 9813.1-2016 General specification for computer—Part 1:Desktop microcomputer GB/T 10111-2008 Generation of random numbers and procedures applied to sampling inspection for product quality GB/T 11463-1989 GB 15322.1-2019 Combustible gas detectors—Part 1:Point-type combustible gas detectors for industrial and commercial use GB 16796-2009 Safety requirements and test methods for security alarm equipment GB/T 17626.2-2018 Electromagnetic compatibility—Testing and measurement techniques—Electrostatic discharge immunity test GB/T 17626.3-2016 Electromagnetic compatibility—Testing and measurement techniques—Radiated,radio-frequency,electromagnetic field immunity test GB/T 17626.4-2018 Electromagnetic compatibility—Testing and measurement techniques—Electrical fast transient/burstimmunity test GB/T 17626.5-2019 Electromagnetic compatibility—Testing and measurement techniques—Surge immunity test JJG 551-2021 Sulfur Dioxide Gas Detectors JJG 678-2007 Catalysis Combustion Type Methane Measuring Device JJG 693-2011 Alarmer Detectors of Combustible Gas JJG 695-2019 Sulfur Hydrogen Gas Detectors JJG 915-2008 Carbon Monoxide Detectors