We need your consent to use the individual data so that you can see information about your interests, among other things. Click "OK" to give your consent.
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
Optics and photonics—Environmental test methods—Part 7:Resistance to drip or rain
Standard published on 12.10.2022
Selected format:Optics and photonics—Environmental test methods—Part 8:High internal pressure, low internal pressure, immersion
Standard published on 12.10.2022
Selected format:Optics and photonics—Environmental test methods—Part 9:Solar radiation and weathering
Standard published on 12.10.2022
Selected format:Agricultural machinery - Cutter bars - Part 1: Assembly
Standard published on 30.11.2009
Selected format:Agricultural machinery - Cutter bars - Part 2:Guard
Standard published on 30.11.2009
Selected format:Agricultural machinery - Cutter bars - Part 3:Knife sections, ledger plates and knife backs
Standard published on 30.11.2009
Selected format:Agricultural machinery - Cutter bars - Part 4: Knife clips
Standard published on 30.11.2009
Selected format:Agricultural machinery - Cutter bars - Part 5: Wearing plates
Standard published on 30.11.2009
Selected format:Specifications for pins
Standard published on 2.7.1986
Selected format:Evaluation index system for sustainable rural development
Standard published on 28.1.2026
Selected format:Latest update: 2026-03-20 (Number of items: 2 268 518)
© Copyright 2026 NORMSERVIS s.r.o.