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
Ferrite cores for AC erasing heads
WITHDRAWN published on 31.3.1989
Selected format:Chemical analysis methods for products and semifinished products made of soft ferrite materials
WITHDRAWN published on 31.3.1989
Selected format:Ferrite cores used in broadcast receiver aerials sectional specification
WITHDRAWN published on 31.3.1989
Selected format:Ferrite cores used in broadcast recever aerials blank detail specification--Assessment level A
WITHDRAWN published on 31.3.1989
Selected format:Cores for inductors and transformers for telecommunications--Part 2: Guides for the drafting of performance specifications
WITHDRAWN published on 1.1.1989
Selected format:Straight-sided spline--Dimensions, tolerances and verification
WITHDRAWN published on 1.1.1987
Selected format:Guide for the drafting of specifications for microwave ferrites
WITHDRAWN published on 1.1.1989
Selected format:Laminations for transformers and inductors for use in telecommunication and electronic equipment
WITHDRAWN published on 31.3.1989
Selected format:General specification for satellite television earth receive-only station
WITHDRAWN published on 1.1.1989
Selected format:General specification for satellite television earth receive—Only station
WITHDRAWN published on 25.4.1995
Selected format:Latest update: 2026-01-23 (Number of items: 2 257 393)
© Copyright 2026 NORMSERVIS s.r.o.