Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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Standard No. Title Price(USD) Delivery Status Add to Cart
GB/T 21020-2007 Metal cutting tools-Terms in circular screwing dies $180.00 via email in 1~3 business day valid
GB/T 21021-2007 RF connector connector cable assemblies and cable—Intermodulation level measurement $100.00 via email in 1~3 business day superseded
GB/T 21021.1-2021 Intermodulation level measurement for passive RF and microwave devices—Part 1: General requirements and measuring methods $225.00 via email in 1~3 business day valid
GB/T 21021.2-2021 Intermodulation level measurement for passive RF and microwave devices—Part 2:Measurement of passive intermodulation in coaxial cable assemblies $105.00 via email in 1~3 business day valid
GB/T 21021.3-2021 Intermodulation level measurement for passive RF and microwave devices—Part 3:Measurement of passive intermodulation in coaxial connectors $105.00 via email in 1~3 business day valid
GB/T 21021.4-2021 Intermodulation level measurement for passive RF and microwave devices—Part 4:Measurement of passive intermodulation in coaxial cables $150.00 via email in 1~3 business day valid
GB/T 21022.1-2007 Fibre optic connector interfaces—Part 1:General and guidance $130.00 via email in 1~3 business day valid
GB/T 21024-2007 General specification for Chinese speech synthesis system $480.00 via email in 1~3 business day valid
GB/T 21026-2007 Specification for Chinese office software application programming interface $1770.00 via email in 1~3 business day valid
GB/T 21028-2007 Information security technology—Security techniques requirement for server $360.00 via email in 1~3 business day superseded
GB/T 21029-2007 Series and type spectrum of geotechnical engineering instrument $490.00 via email in 1~5 business day valid
GB/T 2103-1988 General provisions for checking, packing, marking and quality certification of steel wire $180.00 via email in 1~3 business day superseded
GB/T 2103-2008 General requirements for acceptance, packing, marking and quality certification of steel wire $130.00 immediately valid
GB/T 21030-2007 Test method for the mean and distribution of fibre diameter of wool and other animal fibre—Optical fibre diameter analyser (OFDA) $100.00 immediately valid
GB/T 21031-2007 Acceptance code of practice for water-saving irrigation equipment on the site $150.00 via email in 1~3 business day valid
GB/T 21032-2007 Polyamide monofilament $150.00 via email in 1~3 business day valid
GB/T 21033-2007 Determination of immunoglobulin in feeds—High-performance liquid chromatography $120.00 via email in 1~3 business day valid
GB/T 21034-2007 Feed additive—Methionine hydroxy calcium $100.00 via email in 1~3 business day abolished
GB/T 21035-2007 Feed safety evaluation—Feeding teratogenicity test $100.00 via email in 1~3 business day to be abolished
GB/T 21035-2025 Feed safety assessment—Teratogenicity test via email in business day to be valid
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