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GB/T 35727-2017 Guideline for standard voltages of medium and low voltage DC distribution system (USD) via email in 1 business day VALID
GB/T 23371.2-2009 Basic principles for graphical symbols for use on electrical equipment - Part 2: Form and use of arrows (USD) via email in 1-3 business day VALID
GB/T 4798.1-2005 Environmental conditions existing in the application of electric and electronic products--Section 1:Storage via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 2423.21-2008 Environmental testing - Part 2: Test methods - Test M: Low air pressure (USD) via email in 1-3 business day VALID
GB/T 24975.4-2010 Guide of environmental design for low-voltage apparatus—Part 4:Contact (USD) via email in 1-3 business day VALID
GB 6988.5-1986 (USD) via email in 1-3 business day ABOLISHED
GB/T 4797.5-1992 Environmental conditions appearing in nature of electric and electronic products-Precipitation and wind via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 12113-2003 Methods of measurement of touch current and protective conductor current via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
DL/T 5040-1995 The design rules of radio stations against offects from high voltage power transmission lines (USD) via email in 1-3 business day ABOLISHED
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 (USD) via email in 1-3 business day VALID
GB/T 4728.4-2018 Graphical symbols for electrical diagrams—Part 4:Basic passive components (USD) via email in 1-5 business day VALID
GB/T 2423.54-2005 Environmental testing for electric and electronic products?Part 2:Test methods?Test Xc:Fluid contamination via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 20295-2014 Application of symbols for binary logic and analogue elements (USD) via email in 1-3 business day VALID
GBN 55-1977 via email in ABOLISHED please email coc@codeofchina.com for quotation
GB/T 2424.2-1993 Basic environmental testing procedures for electric and electronic products Guidance for damp heat tests via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 6988.5-2006 Preparation of documents used in electrotechnology - Part 5: Index (USD) via email in 1-5 business day VALID
GB 4728.13-1985 (USD) via email in 1-3 business day ABOLISHED
GB/T 4728.6-2008 Graphical symbols for diagrams - Part 6:Production and conversion of electrical energy (USD) via email in 1-8 business day VALID
GB 2900.4-1986 (USD) via email in 1-5 business day ABOLISHED
GB/T 5170.8-2017 Inspection methods for environmental testing equipments—Part 8:Salt mist testing equipments (USD) via email in 1-3 business day VALID
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