GB/T 14084-1993 General specification of Chinese and English electronic typewriter for office management

GB/T 2423.18-2021 Environmental testing—Part 2:Test methods—Test Kb:Salt mist,cyclic(sodium chloride solution) GB/T 2423.19-2013 Environmental testing—Part 2:Test methods—Test Kc:Sulphur dioxide test for contacts and connections GB/T 2423.20-2014 Environmental testing—Part 2:Test methods—Test Kd:Hydrogen sulphide test for contacts and connections GB/T 2423.21-1991 Basic environmental testing procedures for electric and electronic products—Test M:Low air pressure GB/T 2423.21-2008 Environmental testing for electric and electronic products—Part 2:Test methods—Test M:Low air pressure GB/T 2423.21-2025 Environmental testing—Part 2:Test methods—Test M:Low air pressure GB/T 2423.22-2002 Environmental testing for electric and electronic products—Part 2:Test methods Test N:Change of temperature GB/T 2423.22-2012 Environmental testing—Part 2:Test methods—Test N:Change of temperature GB/T 2423.23-1995 Environmental testing for electric and electronic products Test Q:Sealing GB/T 2423.23-2013 Environmental testing—Part 2:Test methods—Test Q:Sealing GB/T 2423.24-1995 Environmental testing for electric and electronic products Part 2:Test methods Test Sa:Simulated solar radiation at ground level GB/T 2423.24-2013 Enviromental testing—Part 2:Test methods—Test Sa:Simulated solar radiation at ground level and guidance for solar radiation testing GB/T 2423.24-2022 Environmental testing—Part 2:Test methods—Test S:Simulated solar radiation at ground level and guidance for solar radiation testing and weathering GB/T 2423.25-1992 Basic environmental testing procedures for electric and electronic products Test Z/AM:Combined cold/low air pressure tests GB/T 2423.25-2008 Environmental testing for eletric and electronic products—Part 2:Tests methods—Test Z/AM:Combined cold/low air pressure tests GB/T 2423.26-1992 Basic environmental testing procedures for electric and electronic products Test Z/BM:combined dry heat /low air pressure tests GB/T 2423.26-2008 Environmental testing for electric and electronic products—Part 2:Tests methods—Test Z/BM:Combined dry heat/low air pressure tests GB/T 2423.27-2005 Environmental testing for electric and electronic products—Part 2:Tests methods—Test Z/AMD:Combined sequential cold, low air pressure and damp heat test GB/T 2423.27-2020 Environmental testing—Part 2:Test methods—Test method and guidance:Combined temperature or temperature and humidity with low air pressure tests GB/T 2423.28-2005 Environmental testing for electric and electronic products—Part 2:Test methods—Test T:Soldering GB/T 2423.29-1999 Environmental testing for electric and electronic products—Part 2:Test methods—Test U:Robustness of terminations and integral mounting devices GB/T 2423.30-1999 Environmental testing for electric and electronic products—Part 2:Test methods-Test XA and guidance:Immersion in cleaning solvents GB/T 2423.30-2013 Environmental testing—Part 2:Test methods—Test XA and guidance:Immersion in cleaning solvents GB 2423.1~2423.40 GB/T 2423.32-2008 Environmental testing for electric and electronic products—Part 2:Test methods—Test Ta:Solderability test by the wetting balance method GB/T 2423.33-2005 Environmental testing for electric and electronic products—Part 2:Test method—Test Kca:High concentration sulfur dioxide GB/T 2423.33-2021 Environmental testing—Part 2:Test methods—Test Kca:High concentration sulfur dioxid GB/T 2423.34-2005 Environmental testing for electric and electronic products—Part 2:Test methods—Test Z/AD:Composite temperature/ humidity cyclic test GB/T 2423.34-2012 Environmental testing—Part 2:Test methods—Test Z/AD:Composite temperature/humidity cyclic test GB/T 2423.34-2024 Environmental testing—Part 2:Test methods—Test Z/AD:Composite temperature/humidity cyclic test GB/T 2423.35-2005 Environmental testing for electric and electronic products—Part 2:Test Methods—Test Z/AFc:Combined cold/vibration (sinusoidal) tests for both heat-dissipating and non-heat-dissipating specimens GB/T 2423.35-2019 Environmental testing—Part 2:Tests and guidance—Combined climatic(temperature/humidity)and dynamic(vibration/shock)tests GB/T 2423.36-2005 Environmental testing for electric and electronic products—Part 2:Test Methods—Test Z/BFc:Combined dry heat/vibration(sinusoidal) tests for both heat-dissipating and non-heat-dissipating specimens GB/T 2423.37-2006 Environmental testing for electric and electronic products—Part 2:Test methods—Test L:Dust and sand GB/T 2423.38-1990 Basic environmental test procedures for electric and electronic products Test R:Water test method GB/T 2423.38-2005 Environmental testing for electric and electronic products—Part 2:Test methods—Test R:Water test method and guidance GB/T 2423.38-2008 Environmental testing for electric and electronic products—Part 2:Test methods—Test R:Water test method and guidance GB/T 2423.38-2021 Environmental testing—Part 2:Test methods—Test R:Water test method and guidance GB/T 2423.39-1990 Basic environmental testing procedures for electric and electronic products Test Ee:Bounce GB/T 2423.39-2008 Environmental testing for electric and electronic products—Part 2:Test methods—Test Ee:Bounce GB/T 2423.39-2018 Environmental testing—Part 2:Test methods—Test Ee and guidance:Loose cargo testing including bounce GB/T 2423.40-1997 Environmental testing for electric and electronic products Part 2:Test methods Test Cx:Damp heat, steady state(unsaturated pressurized vapour) GB/T 2423.40-2013 Environmental testing—Part 2:Test methods—Test Cx:Damp heat,steady state(unsaturated pressurized vapour) GB/T 2787-1981 Keyboard for international information processing interchange using the 7-bit coded character set—Alpha- numeric area GB/T 4837-1984 Typewriters—Layout of printting and function keys GB 4943-2001 Safety of information technology equipment GB 4943.1-2011 Information technology equipment—Safety—Part 1:General requirements GB 4943.1-2022 Audio/video,information and communication technology equipment—Part 1:Safety requirements GB/T 4943.2-2026 Audio/video,information and communication technology equipment—Part 2:Explanatory information related to GB 4943.1—2022 GB 4943.21-2019 Information technology equipment—Safety—Part 21:Remote power feeding GB 4943.22-2019 Information technology equipment—Safety—Part 22:Equipment to be installed outdoor GB 4943.23-2012 Information technology equipment—Safety—Part 23:Large data storage equipment GB 5007.2-2001 Information technology—Chinese ideogram coded character set (auxiliary set)—24 dot matrix font GB/T 5007.2-2008 Information technology—Chinese ideogram coded character set (auxiliary set)—24-dot matrix font—Song Ti GB/T 5080.7-1986 Equipment reliability testing Compliance test plans for failure rate and mean time between failures assuming constant failure rate GB 5199.2 GB/T 6107-2000 Interface between data terminal equipment and data circuit termination equipment employing serial binary data interchange GB 6345.2-1986 32×32 Dot matrix font data set of Chinese ideograms for information interchange GB/T 6345.2-2008 Information technology—Chinese ideogram coded character set (basic set)—32-dot matrix font—Part 2:Hei Ti GB 6833.2 GB 6833.3 GB 6833.4 GB 6833.5 GB 6833.6 GB/T 7188-1987 Office machines and data processing equipment—Keyboard layouts for numeric applications GB/T 9813-2000 Generic specification for microcomputers GB/T 9813.1-2016 General specification for computer—Part 1:Desktop microcomputer GB/T 9813.2-2016 General specification for computer—Part 2:Laptop microcomputer GB/T 9813.3-2017 General specification for computer—Part 3:Server GB/T 9813.4-2017 General specification for computers—Part 4:Industrial application microcomputer GB 9254-1998 Information technology equipment—Radio disturbance characteristics—Limits and methods of measurement GB/T 9254-2008 Information technology equipment—Radio disturbance characteristics—Limits and methods of measurement GB/T 9254.1-2021 Information technology equipment,multimedia equipment and receivers—Electromagnetic compatibility—Part 1:Emission requirements GB/T 9254.2-2021 Information technology equipment,multimedia equipment and receivers—Electromagnetic compatibility—Part 2:Immunity requirements