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GB - Chinese national standards - Page 5506

Standards GB - Chinese national standards - Page 5506

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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Preview GB 10985-1989 1.1.1989

GB 10985-1989 WITHDRAWN

Optical systems--Determination of distortion

WITHDRAWN published on 1.1.1989

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Preview GB 10986-1989 1.1.1989

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Preview GB/T 10986-1989 27.3.1989

GB/T 10986-1989 WITHDRAWN

General specification for television transposer

WITHDRAWN published on 27.3.1989

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Preview GB/T 10987-1989 31.3.1989

GB/T 10987-1989 WITHDRAWN

Optical systems--Determination of parameters

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Preview GB/T 10988-1989 31.3.1989

GB/T 10988-1989 WITHDRAWN

Veiling glare of optical systems--Methods of measurement

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Preview GB 10989-1989 1.1.1989

GB 10989-1989 WITHDRAWN

Coating for optical element--Beam splitter coating

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Preview GB/T 1099-1979 23.6.1979

GB/T 1099-1979 WITHDRAWN

Woodruff keys--Types and dimensions

WITHDRAWN published on 23.6.1979

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Preview GB 10990-1989 1.1.1989

GB 10990-1989 WITHDRAWN

Microscopes--Graticules for oculars

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Preview GB 10991-1989 1.1.1989

GB 10991-1989 WITHDRAWN

Microscopes--Connecting dimensions of tube slides and tube slots

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Preview GB 10992-1989 1.1.1989

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