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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
Test methods for natural facing stones--Dry,wet and after freezing test methods for compressive strength
WITHDRAWN published on 15.9.1988
Selected format:Test methods for natural facing stones—Part 1:Dry,wet and after freezing test methods for compressive strength
WITHDRAWN published on 30.12.2001
Selected format:Test methods for natural facing stones—Part 2:Dry and wet test method for flexural strength
WITHDRAWN published on 30.12.2001
Selected format:Test methods for natural facing stones—Part 3:Test methods for bulk density,true density,true porosity and water absorption
WITHDRAWN published on 30.12.2001
Selected format:Test methods for natural facing stones—Part 4:Test method for abrasion resistance
WITHDRAWN published on 30.12.2001
Selected format:Test methods for natural facing stones—Part 5:Test method for shore hardness
WITHDRAWN published on 30.12.2001
Selected format:Test methods for natural facing stones—Part 6:Test method for acid resistance
WITHDRAWN published on 30.12.2001
Selected format:Test methods for natural facing stones—Part 7:Test method for strength of individual stone anchorages
WITHDRAWN published on 30.12.2001
Selected format:Test methods for natural facing stones—Part 8:Test method for structural performance of dimension stone cladding systems by uniform static pressure difference
WITHDRAWN published on 30.12.2001
Selected format:Neodymium metal
WITHDRAWN published on 29.5.2001
Selected format:Latest update: 2024-12-22 (Number of items: 2 217 000)
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