Salt spray corrosion test used to test the effectiveness of corrosion protection systems
Can be used to test the relative resistance to corrosion of metallic materials with or without temporary or permanent corrosion protection, when exposed to a salt spray climate (neutral salt spray or acetic acid salt spray or copper accelerated acetic acid salt spray) at an elevated temperature.
Test specimens are placed in an enclosed chamber and exposed to a continuous indirect spray of CASS Solution (pH 3.1 to 3.3) Salt concentration: 50 + 5 g/l Copper(II) chloride . 2H2O: (0.26+/- 0.02) g/l. Which falls-out on to the specimens at a rate of 30 to 40 ml/80cm²/24 hours, in a chamber temperature of +35°C or +50°C. This climate is maintained under constant steady state conditions. The test duration is variable. The chamber should not be filled to more than 50% capacity.
In all other respects this test is based upon ISO 9227.
For further information on ISO standards visit; www.iso.org
Note: many ISO test standards have been harmonized with other European standards and these are now prefixed ‘EN’ (Euro Norm) or ‘** EN’ – where ** are the letters representing a European country/language code, for example ‘BS EN’ for a harmonized British standard in English language.
Salt spray corrosion test used to test the effectiveness of corrosion protection systems
Can be used to test the relative resistance to corrosion of metallic materials with or without temporary or permanent corrosion protection, when exposed to a salt spray climate (neutral salt spray or acetic acid salt spray or copper accelerated acetic acid salt spray) at an elevated temperature.
Test specimens are placed in an enclosed chamber and exposed to a continuous indirect spray of neutral (pH 6.5 to 7.2) salt water solution, which falls-out on to the specimens at a rate of 30 to 40 ml/80cm²/24 hours, in a chamber temperature of +35°C or +50°C. This climate is maintained under constant steady state conditions. The test duration is variable. The chamber should not be filled to more than 50% capacity.
In all other respects this test is based upon ISO9227.
For further information on ISO standards visit; www.iso.org
Note: many ISO test standards have been harmonized with other European standards and these are now prefixed ‘EN’ (Euro Norm) or ‘** EN’ – where ** are the letters representing a European country/language code, for example ‘BS EN’ for a harmonized British standard in English language.
Verification of the corrosion behaviour of surface coatings and of adhesive bonds.
AA-0224 (AA-P 175) is a 7 day cyclic corrosion test (CCT) comprising of the following steps:
Monday: Start of the cycle 24 hours salt spray according to AA-0324.
Tuesday to Friday: 08.00 to 16.00 hrs condense water constant climate at 40°C according to AA-0213.
From 16.00 until 08.00 hrs regeneration at room temperature (opened chamber or ventilated chamber)
Saturday to Sunday: Regeneration at room temperature (opened chamber or ventilated chamber)
Condensation Water Constant Atmosphere Test
This test serves to evaluate the resistance of automotive coatings and painted hang-on parts to high humidity. Test specimens are placed in an enclosed chamber and exposed to constant conditions of +40°C and constant condensation humidity level of c.100% RH.
In all other respects this test is based upon DIN EN ISO 6270-2 KK.
