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
Inductor and transformer cores for telecommunications--Part 3:Sectional specification--Magnetic oxide cores for broad-band transformers
WITHDRAWN published on 30.6.1988
Selected format:Inductor and transformer cores for telecommunications--Part 3:Blank detail specification--Magnetic oxide cores for broad-band transformers--Assessment levels A and B
WITHDRAWN published on 30.6.1988
Selected format:Inductor and transformer cores for telecommunications--Part4:sectional specification--Magnetic oxide cores for transformers and chokes forpower applications
WITHDRAWN published on 30.6.1988
Selected format:Inductor and transformer cores for telecommunications--Part 4:Blank detail specification--Magnetic oxide cores for transformers and chokes for power applications--Assessment level A
WITHDRAWN published on 30.6.1988
Selected format:Dimensions of pot-cores made of magnetic oxides and associated parts
WITHDRAWN published on 30.6.1988
Selected format:Measuring methods of cores for inductors and transformers for telecommunications
WITHDRAWN published on 30.6.1988
Selected format:Measuring methods of cores for inductors and transformers for telecommunications
WITHDRAWN published on 18.7.2002
Selected format:Measuring methods for properties ofgyromagnetic materials intended for application at microwave frequencies
WITHDRAWN published on 30.6.1988
Selected format:Guide to the specification of limits for physical imperfections of parts made from magnetic oxides
WITHDRAWN published on 30.6.1988
Selected format:Ferrite cores--Guide on thelimits of surface irregularities--Part 2:RM-cores
WITHDRAWN published on 4.12.2002
Selected format:Latest update: 2025-02-05 (Number of items: 2 224 044)
© Copyright 2025 NORMSERVIS s.r.o.