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GB/T 15970.1-2018 Corrosion of metals and alloys—Stress corrosion testing—Part 1:General guidance on testing procedures 300 (USD) via email in 1-3 business day VALID
GB/T 19292.4-2018 Corrosion of metals and alloys—Corrosivity of atmospheres—Part 4:Determination of corrosion rate of standard specimens for the evaluation of corrosivity 180 (USD) via email in 1-3 business day VALID
GB/T 36174-2018 Corrosion of metals and alloys—Determination of resistance to intergranular corrosion of solution heat-treatable aluminium alloys 240 (USD) via email in 1-3 business day VALID
GB/T 13448-2019 Test methods for prepainted steel sheet and strip 660 (USD) via email in 1-5 business day VALID
GB 4057-1983 Singie crystal sllicon-Detection of microdefects-Chemical etching technique 45 (USD) via email in 1-3 business day ABOLISHED
GB/T 19292.1-2018 Corrosion of metals and alloys—Corrosivity of atmospheres—Part 1:Classification,determination and estimation 300 (USD) via email in 1-3 business day VALID
GB/T 15970.2-2000 Corrosion of metals and alloys--Stress corrosion testing--Part 2:Preparation and use of bent-beam speciments 135 (USD) via email in 1-3 business day VALID
GB/T 31933-2015 Test method for the corrosion of steel bar embedded in concrete in chloride enviroment 240 (USD) via email in 1-3 business day VALID
GB/T 20852-2007 Corrosion of metals and alloys—Guidelines for selection of protection methods against atmospheric corrosion via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 1839-2003 Test method for gravimetric determination of mass per unit area of galvanized coatings steel products via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 8014.2-2005 Anodizing of aluminium and its alloys—The measuring method of thickness of anodic oxide coatings—Part 2:Mass-loss method via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 10126-2002 Fe-Cr-Ni alloys-stress corrosion test in high temperature water via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
GB/T 19292.3-2018 Corrosion of metals and alloys—Corrosivity of atmospheres—Part 3:Measurement of environmental parameters affecting corrosivity of atmospheres 420 (USD) via email in 1-3 business day VALID
GB/T 19292.4-2003 Corrosion of metals and alloys—Corrosivity of atmospheres—Determination of corrosion rate of STANDARD speciments for the evaluation of corrosivity via email in 1-3 business day ABOLISHED please email coc@codeofchina.com for quotation
YB 55-1964 via email in ABOLISHED please email coc@codeofchina.com for quotation
GB 5776-1986 Method for surface seawater exposure corrosion tests of metallic materials 105 (USD) via email in 1-3 business day ABOLISHED
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 via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
GB/T 22640-2008 Test method of C-Ring sample to stress-corrosion cracking for wrought aluminium and aluminium alloys products 180 (USD) via email in 1-3 business day VALID
GB/T 33763-2017 Test method for dislocation density of sapphire single crystal 120 (USD) via email in 1-3 business day VALID
GB/T 7998-2005 Test method for intergranular corrosion of aluminium alloy via email in 1-3 business day VALID please email coc@codeofchina.com for quotation
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