Code of China Chinese Standard Classification Professional Classification ICS Classification Latest
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GB/T 38786-2020 Testing method for cleanliness of magnesium and magnesium alloy ingots $165.00 via email in 1~3 business day valid
GB/T 38804-2020 Metallic materials—Creep-fatigue test method $160.00 via email in 1~3 business day valid
GB/T 38980-2020 Test method for artificial defect sizes of zirconium tube flaw detection comparison samples $105.00 via email in 1~3 business day valid
GB/T 39042-2020 Measurement of the magnetic properties of electrical steels by means of a single sheet tester—H-coil method $255.00 via email in 1~3 business day valid
GB/T 39861-2021 Electrochemical performance test of lithium manganese oxide—Test method for discharge plateau capacity ratio and cycle life $165.00 via email in 1~3 business day valid
GB/T 39864-2021 Electrochemical performance test of lithium manganese oxide—Test method for the initial specific discharge capacity and the initial efficiency $165.00 via email in 1~3 business day valid
GB/T 40007-2021 Nanotechnology—Contacting methods for measuring the resistivity of nanomaterials—General rules $315.00 via email in 1~5 business day valid
GB/T 40279-2021 Test method for thickness of films on silicon wafer surface—Optical reflection method $165.00 via email in 1~3 business day valid
GB/T 40296-2021 Practical superconducting wires—Twist pitch measurement method of Nb-Ti and Nb3Sn composite superconductors $315.00 via email in 1~5 business day valid
GB/T 40320-2021 Measuring method for mechanical melting temperature of aluminum alloy $165.00 via email in 1~3 business day valid
GB/T 40380.1-2021 Metallic powders—Determination of apparent density and flow rate at elevated temperatures—Part 1: Determination of apparent density at elevated temperatures $165.00 via email in 1~3 business day valid
GB/T 40380.2-2021 Metallic powders—Determination of apparent density and flow rate at elevated temperatures—Part 2: Determination of flow rate at elevated temperatures $165.00 via email in 1~3 business day valid
GB/T 4059-1983 Polycrystalline silicon; Examination method; Zone-melting on phosphorus under controlled atmosphere $224.00 via email in 1~3 business day superseded
GB/T 4060-1983 Polycrystalline silicon; Examination method; Vacuum zone-melting on boron $184.00 via email in 1~3 business day superseded
GB/T 4067-1999 Testing method for electrical resistance-temperature characteristic parameters of metallic materials $150.00 via email in 1~3 business day valid
GB/T 4104-1983 Leucoscopic method for testing whiteness of zinc oxide made by direct process $184.00 via email in 1~3 business day abolished
GB/T 4104-2003 Leucoscopic method for testing whiteness of zine oxide made by direct process $100.00 via email in 1~3 business day superseded
GB/T 4104-2017 Determination of whiteness for zinc oxide produced by direct process $100.00 via email in 1~3 business day valid
GB/T 4106-1983 Determination method for secondary recrystallization temperature of tungsten wire $180.00 via email in 1~3 business day abolished
GB/T 4107-1983 Magnesium powders--Determination of apparent density--Scott volumetric method $180.00 via email in business day abolished
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