GB/T 15381-1994 Electrical and audio requirements for the conference systems

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 2424.1-2005 Environmental testing for electric and electronic products—Guidance for high temperature and low temperature tests GB/T 2424.1-2015 Environmental testing—Part 3:Supporting documentation and guidance—Cold and dry heat tests GB/T 2424.2-1993 Basic environmental testing procedures for electric and electronic products Guidance for damp heat tests GB/T 2424.2-2005 Environment tests for electric and electronic products—Guidance for damp heat tests GB/T 2424.5-2006 Environmental tests for electric and electronic products—Confirmation of the performance of temperature chambers GB/T 2424.5-2021 Environmental testing—Part 3:Supporting documentation and guidance—Confirmation of the performance of temperature chambers GB/T 2424.6-2006 Environmental testing for electric and electronic products—Confirmation of the performance of temperature/humidity chambers GB/T 2424.6-2021 Environmental testing—Part 3: Supporting documentation and guidance—Confirmation of the performance of temperature/humidity chambers GB/T 2424.7-2006 Environmental tests for electric and electronic products—Measurements in temperature chambers for tests A and tests B (with load) GB/T 2424.7-2024 Environmental testing—Part 3:Supporting documentation and guidance—Meas-urements in temperature chambers for tests A(Cold)and B(Dry heat)(with load) GB/T 2424.10-1993 Basic environmental testing procedures for electric and electronic products—General guidance of accelerated testing for atmospheric corrosion GB/T 2424.10-2012 Environmental testing—General guidance of accelerated testing for atmospheric corrosion GB/T 2424.11-2013 Environmental testing—Part 2:Test methods—Guidance to test Kc:Sulphur dioxide test for contacts and connections GB/T 2424.12-2014 Environmental testing—Part 2:Test methods—Guidance to test Kd:Hydrogen sulphide test for contacts and connections GB/T 2424.13-2002 Environmental testing for electric and electronic products—Part 2:Test methods—Guidance on change of temperature tests GB/T 2424.14-1995 Environmental testing for electric and electronic products—Part 2:Test methods—Guidance for solar radiation testing GB/T 2424.15-1992 Basic enviromental testing procedures for electric and electronic products Guide for combined temperature/low air pressure tests GB/T 2424.15-2008 Environmental testing for electric and electronic products—Guide for combined temperature/low air pressure tests GB/T 2424.17-1995 Environmental testing for electric and electronic products—Guidance on soldering test GB/T 2424.17-2008 Environmental testing for electric and electronic products—Part 2:Tests methods Guidance on test T:Soldering test GB/T 2424.19-2005 Environment tests for electric and electronic products—Guidance on the application of the environmental test to simulate the effects of storage GB/T 2424.22-1986 Basic environmental testing procedures for electric and electronic products Guidance for combined temperature (cold and heat) vibration (sinusoidal) tests GB/T 2424.23-1990 Basic environmental test procedures for electric and electronic products Guidance for water test GB/T 2424.24-1995 Basic environmental testing procedures for electric and electronic products Guidance for combined temperature(cold and heat)/low air pressure/vibration (sinusoidal)test GB/T 2424.25-2000 Environmental testing for electric and electronic products—Part 3:Test guidance-Seismic test methods GB/T 2424.25-2024 Environmental testing—Part 3:Test guidance—Seismic test methods GB/T 2424.26-2008 Environmental testing for electric and electronic products—Part 3:Supporting documentation and guidance—Selecting amongst vibration tests GB/T 2424.27-2013 Environmental testing—Supporting documentation and guidance—Calculation of uncertainty of conditions in climatic test chambers GB 3100-1993 SI units and recommendations for the use of their multiples and of certain other units GB/T 5465.1-1996 General principles for the creation of graphical symbols for use on electrical equipment GB/T 5465.1-2009 Graphical symbols for use on electrical equipment—Part 1:Overview and classification GB/T 5465.2-1996 Graphical symbols for use on electrical equipment GB/T 5465.2-2008 Graphical symbols for use on electrical equipment—Part 2:Graphical symbols GB/T 5465.2-2023 Graphical symbols for use on electrical equipment—Part 2:Graphical symbols GB/T 6832-1986 Methods of measurement on headphones GB/T 7159-1987 General rules for the formulation of letter symbols in electrotechnology GB 8898-2001 Audio, video and similar electronic apparatus—Safety requirements GB 8898-2011 Audio,video and similar electronic apparatus—Safety requirements GB 9001 GB/T 9396-1996 Methods of measurement for main characteristics of loudspeakers GB/T 9401-1988 Methods of measurement for microphones GB/T 14197-1993 Preferred matching values for the interconnection of sound system components GB/T 14197-2012 Preferred matching values for the interconnections of audio,video and audiovisual systems SJT 10444 SJ/Z 9141.2-1987 Audio,video,television equipment and systems--Part 3: Connectors for the interconnection of equipment in audio systems SJ/Z 9141.3

IEC 914