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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
DDZ-Series process electronic control system operating signal
WITHDRAWN published on 31.3.1989
Selected format:Electronic instrument general technical specification for industrial-process measurement and control system
WITHDRAWN published on 2.7.2008
Selected format:Maximum residue limits for 54 pesticides in food
WITHDRAWN published on 21.1.2011
Selected format:Roof crush resistance of passenger cars
WITHDRAWN published on 14.1.2011
Selected format:High pressure cleaning unit
WITHDRAWN published on 14.1.2011
Selected format:Ultra-high pressrue waterjet cutting machine
WITHDRAWN published on 14.1.2011
Selected format:-
WITHDRAWN published on 1.1.1985
Selected format:Nickel-Chromium/Nickel-Silicon thermocouple wires
WITHDRAWN published on 11.12.1998
Selected format:Non-destructive testing—Standards test method for determining residual stresses by neutron diffraction
WITHDRAWN published on 14.1.2011
Selected format:Connectors for hydraulic fluid power—Test methods
WITHDRAWN published on 14.1.2011
Selected format:Latest update: 2026-03-27 (Number of items: 2 269 573)
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