GB/T 20121-2006
ActiveCorrosion of metals and alloys -- Corrosion tests in artificial atmosphere -- Accelerated outdoor test by intermittent spraying of a salt solution (Scab test)
金属和合金的腐蚀 人造气氛的腐蚀试验 间歇盐雾下的室外加速试验（疮痂试验）
Application Summary AI generated
This standard specifies an accelerated outdoor corrosion test method for metals and alloys, where specimens are intermittently sprayed with a salt solution under natural atmospheric conditions. It is applied in the automotive and coatings industries to evaluate the corrosion resistance of painted or coated metal panels, simulating severe service environments like road de-icing salt exposure. The test helps predict long-term corrosion performance and coating degradation, particularly for assessing "scab" or blister formation.
Related Standards
GB/T 19292.3-2003
Corrosion of metals and alloys--Corrosivity of atmospheres--Measurement of pollution
GB/T 19292.4-2003
Corrosion of metals and alloys--Corrosivity of atmospheres--Determination of corrosion rate of standard specimens for the evaluation of corrosivity
GB/T 19292.2-2003
Corrosion of metals andalloys--Corrosivity of atmospheres--Guiding values for the corrosivity categories
GB/T 19292.1-2003
Corrosion of metals and alloys--Corrosivity of atmospheres--Classification
GB/T 19291-2003
Corrosion of metals and alloys--General principles for corrosion testing
GB/T 19745-2005
Corrosion tests in artificial atmosphere at very low Concentrations of polluting gas(es)
GB/T 19746-2005
Corrosion of metals and alloys-Alternate immersion test in salt solution
GB/T 19747-2005
Corrosion of metals and alloys-Determination of bimetallic Corrosion in outdoor exposure corrosion tests
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