GB/T 12848-1991 Generic specification of twisted nematic liquid crystal display devices

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 2421-1999 Environmental testing for electric and electronic products—Part 1:General and guidance GB/T 2421-2020 Environmental testing—General and guidance GB/T 2421.1-2008 Environmental testing for electric and electronic products—General and guidance GB/T 2421.2-2008 Environmental testing for electric and electronic products—Information for specification writers—Test summaries GB/T 2422-1995 Environmental testing for electric and electronic products—Terms and definitions GB/T 2422-2012 Environmental testing—Guide to drafting of test methods—Terms and definitions 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 2423.6-1995 Environmental testing for electric and electronic products—Part 2:Test methods—Test Eb and guidance:Bump GB/T 2423.7-1995 Environmental testing for electric and electronic products Part 2:Test Ec and quidance:Drop and topple (Primarily for equipment-type specimens) GB/T 2423.7-2018 Environmental testing—Part 2:Test methods—Test Ec:Rough handling shocks,primarily for equipment-type specimens GB/T 2423.8-1995 Environmental testing for electric and electronic products—Parts 2:Test methods—Test Ed:Free fall GB/T 2423.9-2001 Environmental testing for electric and electronic products—Part 2:Test methods—Test Cb:Damp heat, steady state, primarily for equipment 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 2423.11-1997 Environmental testing for electric and electronic products Part 2:Test methods Test Fd:Random vibration wide band—General requirements GB/T 2423.12-1997 Environmental testing for electric and electronic products Part 2:Test methods Test Fda:Random vibration wide band—Reproducibility high GB/T 2423.14-1997 Environmental testing for electric and electronic products Part 2:Test methods Test Fdc:Random vibration wide band—Reproducibility low GB/T 2423.15-1995 Environmental testing for electric and electronic products—Part 2:Test methods—Test Ga and guidance:Acceleration, steady state GB/T 2423.15-2008 Environmental testing for electric and electronic products—Part 2:Tests methods—Test Ga and guidance: Acceleration,steady GB/T 2423.16-1999 Environmental testing for electric and electronic products—Part 2:Tests methods—Test J and guidance:Mould growth GB/T 2423.16-2008 Environmental testing for electric and electronic products—Part 2:Test methods—Test J and guidance:Mold growth GB/T 2423.16-2022 Environmental testing—Part 2:Test methods—Test J and guidance:Mould growth GB/T 2423.17-1993 Basic environmental testing procedures for electric and electronic products Test Ka:Salt mist GB/T 2423.17-2008 Environmental testing for electric and electronic products—Part 2:Test methods—Test Ka:Salt mist GB/T 2423.17-2024 Environmental testing—Part 2:Test methods—Test Ka:Salt mist GB/T 2423.18-2000 Environmental testing—Part 2:Tests—Test Kb:Salt mist, cyclic (sodium chloride solution) GB/T 2423.18-2012 Environmental testing—Part 2:Test methods—Test Kb:Salt mist,cyclic(sodium chloride solution) 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/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 2423.41-1994 Basic environmental testing procedures for electric and electronic products—Wind pressure GB/T 2423.41-2013 Environmental testing—Part 2:Test methods—Wind pressure GB/T 2423.42-1995 Basic environmental testing procedures for electric and electronic products—Combined low temperature/low air pressure/vibration(sinusoidal)test GB/T 2423.43-1995 Environmental testing for electric and electronic products Part 2:test methods—Mounting of components, equipment and other articles for dynamic tests including shock(Ea), bump(Eb), vibration(Fc and Fd) and steady-state acceleration(Ca) and guidance GB/T 2423.43-2008 Environmental testing for electric and electronic products—Part 2:Test methods—Mounting of specimens for vibration, impact and similar dynamic tests GB/T 2423.44-1995 Environmental testing for electric and electronic products—Part 2:Test method Test Eg:Impact, spring hammer GB/T 2423.45-1997 Environmental testing for electric and electronic products—Part 2:Test methods—Test Z/ABDM:Climatic sequence GB/T 2423.45-2012 Environmental testing—Part 2:Test methods—Test Z/ABDM:Climatic sequence GB/T 2423.46-1997 Environmental testing for electric and electronic products Part 2:Test method—Test Ef:Impact, pendulum hammer GB/T 2423.47-1997 Environmental testing for electric and electronic products Part 2:Test methods Test Fg:Vibration, acoustically induced GB/T 2423.47-2018 Environmental testing—Part 2:Test methods—Test Fg:Acoustic vibration GB/T 2423.48-1997 Environmental testing for electric and electronic products Part 2:Test methods—Test Ff:Vibration—Time-history method GB/T 2423.48-2008 Environmental testing for electric and electronic products—Part 2:Test methods—Test Ff:Vibration—Time-history method GB/T 2423.48-2018 Environmental testing—Part 2:Test methods—Test Ff:Vibration—Time-history and sine-beat method GB/T 2423.49-1997 Environmental testing for electric and electronic products Part 2:Test methods—Test Fe:Vibration—sine-beat method GB/T 2423.50-1999 Environmental testing for electric and electronic products—Part 2:Tests—Test Cy:Damp heat, steady state, accelerated test primarily intended test primarily intended for components GB/T 2423.50-2012 Environmental testing—Part 2:Test methods—Test Cy:Damp heat,steady state,accelerated test primarily intended for components