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Standards GB - Chinese national standards - Page 561

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/T 15694.1-1995

Identification cards--Identification of issuers--Part 1:Numbering system

Standard published on 30.8.1995

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GB/T 15694.2-2002

Identification cards--Identification of issuers--Part 2:Application and registration procedures

Standard published on 8.5.2002

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GB/T 15695-2008

Information technology - Open systems interconnection - Presentation service definition

Standard published on 1.9.2008

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952.80 USD

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GB/T 15696.1-2009

Information technology - Open systems interconnection - Connection-oriented presentation protocol - Part 1: Protocol specification

Standard published on 30.9.2009

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1 720.80 USD

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GB/T 15699-2013

Rules for tobacco blue mold quarantine

Standard published on 12.11.2013

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GB/T 157-2025

Geometrical product specifications (GPS)—Series of conical tapers and taper angles

Standard published on 30.5.2025

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286.80 USD

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GB/Z 157-2026

In vitro diagnostic test systems—Requirements and recommendations for detection of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) by nucleic acid amplification methods

Standard published on 28.1.2026

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GB/T 1570-2005

conical shaft ends

Standard published on 16.5.2005

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