GB/T 41401-2022 Intelligent manhole cover

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 2423.17-2008 Environmental testing for electric and electronic products—Part 2:Test methods—Test Ka:Salt mist GB/T 4208-2017 Degrees of protection provided by enclosure(IP code) GB/T 17626.2-2018 Electromagnetic compatibility—Testing and measurement techniques—Electrostatic discharge immunity test GB/T 20138-2006 Degrees of protection provided by enclosures for electrical equipment against external mechanical impacts(IK code) GB/T 30428.2-2013 Information system for digitized supervision and management of city—Part 2:Managed component and event GB/T 30428.7-2017 Information system for digitized supervision and management of city—Part 7:Supervision imformation collection GB/T 2408-1996 Plastics—Determination of the burning behaviour of horizontal and vertical specimens in contact with a small-flame ignition source GB/T 2408-2008 Plastics—Determination of burning characteristics—Horizontal and vertical test GB/T 2408-2021 Plastics—Determination of burning characteristics—Horizontal and vertical test GB/T 22239-2008 Information security technology—Baseline for classified protection of information system security GB/T 22239-2019 Information security technology—Baseline for classified protection of cybersecurity GB/T 22351.1-2008 Identification cards—Contactless integrated circuit(s) cards—Vicinity cards—Part 1:Physical characteristics GB/T 22351.2-2010 Identification cards—Contactless integrated circuit(s) cards—Vicinity cards—Part 2:Air interface and initialization GB/T 22351.3-2008 Identification cards—Contactless integrated circuit(s) cards—Vicinity cards—Part 3:Anticollision and transmission protocol GB/T 23858-2009 Manhole cover GB/T 30428.4-2016 Information system for digitized supervision and management of city—Part 4:Performance evaluation