NB/T 10720-2021 Camera for the coal mine

GB/T 191-2000 Packaging—Pictorial marking for handling of goods GB/T 191-2008 Packaging—Pictorial marking for handling of goods GB/T 191-2025 Graphical symbols marking for handling and storage of packages GB/T 2423.1-2001 Environmental testing for electric and electronic products—Part 2:—Test methods Tests A:Cold GB/T 2423.1-2008 Environmental testing for electric and electronic products—Part 2:Test methods—Tests A:Cold GB/T 2423.2-2001 Environmental testing for electric and electronic products—Part 2:Test methods-Tests B:Dry heat GB/T 2423.2-2008 Environmental testing for electric and electronic products—Part 2:Test methods—Tests B:Dry heat GB/T 2423.3-1993 Basic environmental testing procedures for electric and electronic products—Test Ca:Damp heat, steady state GB/T 2423.3-2006 Environmental testing for electric and electronic products—Part 2:Testing method—Test Cab:Damp heat, steady state GB/T 2423.3-2016 Environmental testing—Part 2:Testing method—Test Cab:Damp heat,steady state GB/T 2423.4-1993 Basic environmental testing procedures for electric and electronic products—Test Db:Damp heat, cyclic GB/T 2423.4-2008 Environmental testing for electric and electronic products—Part 2:Test method—Test Db:Damp heat,cyclic(12 h+12 h cycle) GB/T 2423.5-1995 Environmental testing for electric and electronic products—Part 2:Test methods—Test Ea and guidance:Shock GB/T 2423.5-2019 Environmental testing—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/T 2423.10-2008 Environmental testing for electric and electronic products—Part 2:Tests methods Test Fc:Vibration(sinusoidal) GB/T 2423.10-2019 Environmental testing—Part 2:Tests methods—Test Fc:Vibration(sinusoidal) GB/T 2829-2002 Sampling procedures and tables for periodic inspection by attributes (Apply to inspection of process stability) GB 3836.1-2000 Electrical apparatus for explosive gas atmospheres—Part 1:General requirements GB 3836.1-2010 Explosive atmospheres—Part 1:Equipment—General requirements GB/T 3836.1-2021 Explosive atmospheres—Part 1:Equipment—General requirements GB 3836.2-2000 Electrical apparatus for explosive gas atmospheres—Part 2:Flameproof enclosure “d” GB 3836.2-2010 Explosive atmospheres—Part 2:Equipment protection by flameproof enclosures "d" GB/T 3836.2-2021 Explosive atmospheres—Part 2:Equipment protection by flameproof enclosures “d” GB 3836.3-2000 Electrical apparatus for explosive gas atmospheres—Part 3:Increased safety “e” GB 3836.3-2010 Explosive atmospheres—Part 3:Equipment protection by increased safety "e" GB/T 3836.3-2021 Explosive atmospheres—Part 3:Equipment protection by increased safety “e” GB 3836.4-2000 Electrical apparatus for explosive gas atmospheres—Part 4:Intrinsic safety“i” GB 3836.4-2010 Explosive atmospheres—Part 4:Equipment protection by intrinsic safety "i" GB/T 3836.4-2021 Explosive atmospheres—art 4:Equipment protection by intrinsic safety “i” GB 4208-1993 Degrees of protection provided by enclosure (IP code) GB/T 4208-2008 Degrees of protection provided by enclosure(IP code) GB/T 4208-2017 Degrees of protection provided by enclosure(IP code) GB/T 5080.1-2012 Reliability testing—Part 1:Test conditions and statistical test principles GB/T 5080.7-1986 Equipment reliability testing Compliance test plans for failure rate and mean time between failures assuming constant failure rate GB/T 6996-2012 Test charts of transparencies for television GB/T 6996.1-1986 Multiple test chart of transparencies for television GB/T 6996.2-1986 Linear test chart A of transparencies for television GB/T 6996.3-1986 Linear test chart B of transparencies for television GB/T 6996.4-1986 High-frequency test chart of transparencies for television GB/T 6996.5-1986 High resolution test chart of transparencies for television GB/T 6996.6-1986 Checkerboard test chart of transparencies for television GB/T 6996.7-1986 Amplitude response test chart of transparencies for television GB/T 6996.8-1986 Registration test chart A of transparencies for television GB/T 6996.9-1986 Registration test chart B of transparencies for television GB/T 6996.10-1986 Quality of distribution test chart of transparencies for television GB/T 6996.11-1986 Circular zone test chart of transparencies for television GB/T 6996.12-1986 Grayscale test chart A of transparencies for television GB/T 6996.13-1986 Grayscale test chart B of transparencies for television GB/T 6996.14-1986 Defection distortion test chart of transparencies for television GB/T 10111-1988 Methods for random sampling by utilizing dices of random number GB/T 10111-2008 Generation of random numbers and procedures applied to sampling inspection for product quality 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 AQ 1043-2007 Mining Product Safety Mark Identification MT 210-1990 The basic test methods for electrical products used in coal mine communication, detection, and control MT 286-1992 The method for preparing model numbers and management methods for coal mine communication and automation products MT/T 772-1998