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Standards GB - Chinese national standards - Page 7918
Standards GB are Chinese national standards, which are issued by China's Standardization Administration Office (SAC).
Chinese national standards are used all over China commonly labeled as GB standards. They determine the united production requirements regarding product safety and quality .
GB standards are often modified or created according to the international standards of ISO, IEC or any other international level.
Although, they are largely harmonized, GB standards may differ from international standards .
Approximately 15% of all GB standards are obligatory and they can be identified according to the prefix GB, after which the code of the standards follows:
GB – Obligatory national standards
GB/T – Optional national standards
GB/Z – National steering technical document
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GB 4907.1-1985
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Test method for gold, silver and their alloy brazing for electron device--Test method for cleanness
WITHDRAWN published on 1.1.1985
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GB 4907.2-1985
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Test method for gold, silver and their alloy brazing for electron device--Test method for spatter
WITHDRAWN published on 1.1.1985
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GB 4908-1985
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Wall mail box
WITHDRAWN published on 1.1.1985
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GB/T 4909.1-1985
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Test methods for bare wires—General
WITHDRAWN published on 31.1.1985
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GB/T 4909.10-1985
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Test methods for bare wires—Test for continuity of coating—Ammonium persulphate solution method
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GB/T 4909.11-1985
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Test methods for bare wires—Test for adherence of coating
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GB/T 4909.12-1985
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Test methods for bare wires—Solderability test of coating Solder globule method
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GB/T 4909.2-1985
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Test methods for bare wires—Measurement of dimensions
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GB/T 4909.3-1985
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Test methods for bare wires—Tensile test
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GB/T 4909.4-1985
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Test methods for bare wires—Torsion test
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