QJ 900-1992 Microcomputer General Technical Conditions

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 GB/T 2423.50-2025 Environmental testing—Part 2:Test methods—Test Cy:Damp heat, steady state,accelerated test primarily intended for components GB/T 2423.51-2000 Environmental testing for electric and electronic products—Part 2:Test methods—Test Ke:Flowing mixed gas corrosion test GB/T 2423.51-2012 Environmental testing—Part 2:Test methods—Test Ke:Flowing mixed gas corrosion test GB/T 2423.51-2020 Environmental testing—Part 2:Test methods—Test Ke:Flowing mixed gas corrosion test GB/T 2423.52-2003 Environmental testing for electric and electronic products—Part 2:Test methods—Test 77:Body strength and impact shock GB/T 2423.53-2005 Environmental testing for electric and electronic products—Part 2:Test methods—Test Xb:Abrasion of markings and letterings caused by rubbing of fingers and hands GB/T 2423.54-2005 Environmental testing for electric and electronic products—Part 2:Test methods—Test Xc:Fluid contamination GB/T 2423.54-2022 Environmental testing—Part 2:Test methods—Test Xc:Fluid contamination GB/T 2423.55-2006 Environmental testing for electric and electronic products—Part 2:Test methods—Test Eh:Hammer tests GB/T 2423.55-2023 Environmental testing—Part 2:Test methods—Test Eh:Hammer tests GB/T 2423.56-2006 Environmental testing for electric and electronic products—Part 2:Test methods—Test Fh:Vibration, broad-band random(digital control)and guidance GB/T 2423.56-2018 Environmental testing—Part 2:Test methods—Test Fh:Vibration, broadband random and guidance GB/T 2423.56-2023 Environmental testing—Part 2:Test methods—Test Fh:Vibration,broadband random and guidance GB/T 2423.57-2008 Environmental testing for electric and electronic products—Part 2:Tests—Test Ei:Shock—Shock response spectrum synthesis GB/T 2423.58-2008 Environmental testing for electric and electronic products—Part 2:Tests methods—Test Fi:Vibration—Mixed Mode GB/T 2423.59-2008 Environmental testing for electric and electronic products—Part 2:Test methods—Test Z/ABMFh:Combined temperature(cold and heat)/low air pressure/vibration(random) GB/T 2423.60-2008 Environmental testing for electric and electronic products—Part 2:Test methods—Test U:Robustness of terminations and integral mounting devices GB/T 2423.61-2018 Environmental testing—Part 2:Test methods—Test and guidance:Dust and sand test for large specimen GB/T 2423.62-2018 Environmental testing—Part 2:Test motheds—Test Fx and guidance:Mulit input mulit output vibration test GB/T 2423.63-2019 Environmental testing—Part 2:Test methods—Test:combined temperature(cold and heat)/low air pressure/vibration(mixed mode) GB/T 2423.64-2023 Environmental testing—Part 2:Test methods—Test Fj:Vibration—Long time history replication GB/T 2423.65-2024 Environmental testing—Part 2:Test methods—Test:Combined salt mist/temperature/humidity/solar radiation GB/T 2423.66-2025 Environmental testing—Part 2:Test methods—Test:Combined temperature/humidity/static load GB/T 2423.101-2008 Environmental testing for electric and electronic products—Part 2:Test methods—Test:Inclinations and swings GB/T 2423.101-2025 Environmental testing—Part 2:Test methods—Test:Inclinations and swings GB/T 2423.102-2008 Environmental testing for electric and electronic products—Part 2:Test methods—Test: combined temperature(cold and heat)/low air pressure/vibration(sinusoidal) GB/T 3047.1-1995 Series of basic dimensions of panels, rack and cabinets for vertical increment of 20mm GB 4792 GJB 151 GJB 152 GJB 388 GJB 511 QJ 1149 QJ 1535 QJ 1551 QJ 2166-1991 QJ 627 QJ 628-1981 Electronic instrument packaging case technical specification QJ 815.1