A. The salt spray test is a standardized test method used to check corrosion resistance of coated samples. Coatings provide corrosion resistance to metallic parts made of steel, zamak or brass. Since coatings can provide a high corrosion resistance through the intended life of the part in use, it is necessary to check corrosion resistance by other means. Salt spray test is an accelerated corrosion test that produces a corrosive attack to the coated samples in order to predict its suitability in use as a protective finish. The appearance of corrosion products (oxides) is evaluated after a period of time. Test duration depends on the corrosion resistance of the coating; the more corrosion resistant the coating is, the longer the period in testing without showing signs of corrosion.
Q. What’s the most common testing standards of salt spray test?
A. ISO 9227, EN 1670, JIS Z 2371, DIN 50021, ASTM B 117, NEMA250, UL 50E, ASTM G 85, ASTM B 368, ASTM D 5894, IEC 60068-2-52 Part 2, SAE J2334 and more.
Q. What are NSS, CASS, AASS?
A. NSS is “Neutral Salt Spray Test”, CASS is “Copper Accelerated Acetic Acid Salt Spray Test”, AASS is “Acetic Acid Salt Spray Test”. They use different salt solutions, and have difference on the PH value.
Q. What should I prepare before choosing a salt spray chamber?
A. Firstly, define which products will be tested, list all of the weights and sizes? Secondly, confirm which standards do your tests must comply with? Thirdly, choose the right models of salt spray chambers, make sure it’s functions could meet your testing requirements(standards, weights, sizes and quantity). Fourthly, choose a good brand.
Q. What is a typical salt spray tests procedure?
A. Step 1, Setup salt spray chamber. Step 2, Prepare test specimens. Step 3, Prepare testing solution. Step 4, Position test specimens and run test.
Q. How to order?
A. Contact with our professional sales team, each client will be assigned with an exclusive salesman, who will assist from the pre-sales to after-sales services. Click here to Contact Us
Q. How long the lead time would be?
A. Generally it would be 7 to 25 business days. Dependent on different models.
Q. How to guarantee?
A. Please visit our Support page for more info.