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GB/T 28416-2012 Corrosion tests in artificial atmospheres—Accelerated corrosion tests involving alternate exposure to corrosion-promoting gases,neutral salt-spray and drying 170.0 via email in 1~3 business day valid
GB/T 4334-2008 Corrosion of metals and alloys - Test methods for intergranular corrosion of stainless steels 120.0 via email in 1 business day valid
GB/T 2972-2016 Test method for uniformity of zinc coating on zinc-coated steel wire by the copper sulphate dip 80.0 via email in 1~3 business day valid
GB/T 5776-2005 Corrosion of metals and alloys-Guidelines for exposing and evaluating metals and alloys in surface sea water 105.0 via email in 1~3 business day valid
GB/T 31316-2014 General principles of cathodic protection in sea water 350.0 via email in 1~5 business day valid
GB/T 15970.8-2005 Corrosion of metals and alloys - Stress corrosion test - Part 8 : Preparation and use of speciments to evaluate weldments 170.0 via email in 1~3 business day valid
GB/T 4157-2017 Laboratory testing of metals for resistance to sulfide stress crackingand stress corrosion cracking in H2S environment 850.0 via email in 1~8 business day valid
GB/T 10123-2001 Corrosion of metals and alloys - Basic terms and definitions 300.0 via email in 1~3 business day valid
HB 5257-1983 Determination of Weight Loss in Corrosion Test and Clear of Corrosion Product 150.0 via email in 1~3 business day valid
GB/T 15970.9-2007 Corrosion of metals and alloys—Stress corrosion testing—Part 9:Preparation and use of pre-cracked speciments for tests under rising load or rising displacement 345.0 via email in 1~3 business day valid
GB/T 24513.3-2012 Corrosion of metals and alloys—Classification of low corrosivity of indoor atmospheres—Part 3:Measurement of environmental parameters affecting indoor corrosivity 200.0 via email in 1~3 business day valid
GB/T 15970.3-1995 Corrosion of metals and alloys - Stress corrosion testing - Part 3: Preparation and use of U-bend specimens 75.0 via email in 1~3 business day valid
GB/T 34481-2017 Test method for measuring etch pit density(EPD) in low dislocation density monocrystalline germanium slices 70.0 via email in 1~3 business day valid
GB/T 11261-1989 Methods for chemical analysis of high carbon chromium bearing steel; The pulse heating inert gas fusion; Infra-red absorption method for the determination of oxygen content 75.0 via email in 1~3 business day abolished
GB 12445.2-1990 90.0 via email in 1~3 business day superseded
HB 5260-1983 Test Method for Martensitic Stainless Steel Tensile Stress Corrosion 75.0 via email in 1~3 business day valid
GB/T 17897-1999 Test of pitting corrosion resistance of stainless steels in the ferric chloride solution 195.0 via email in 1~3 business day abolished
GB/T 22640-2008 Test method of C-Ring sample to stress-corrosion cracking for wrought aluminium and aluminium alloys products 150.0 via email in 1~3 business day valid
GB/T 31317-2014 Corrosion of metals and alloys―Black box exposure test method 150.0 via email in 1~3 business day valid
GB/T 13448-2006 Test methods for prepainted steel sheet 150.0 via email in 1 business day valid
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