Q: What is salt spray test?
A: Salt spray testing is a standard test method used to check the corrosion resistance of coated samples. The coating is corrosion resistant to metal parts made of steel, zinc alloy or brass. Since coatings provide high corrosion resistance over the expected life of the part, it is necessary to check corrosion resistance by other means. The salt spray test is an accelerated corrosion test that exerts a corrosive effect on a coated sample to predict its suitability for use as a protective layer. Evaluate the appearance of corrosion products (oxides) after a period of time. The test time depends on the corrosion resistance of the coating; the more corrosion resistant the coating, the longer the test can be carried out without evidence of corrosion.
Q: What are the common testing standards for salt spray testing?
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, etc.
Q: What are NSS, CASS, AASS?
Answer: NSS is "Neutral Salt Spray Test", CASS is "Copper Accelerated Acetic Salt Spray Test", and AASS is "Acetic Salt Spray Test". They use different salt solutions and have different pH levels.
Q: What should I prepare before choosing a salt spray Test Chamber?
A: First, define the product to be tested, list all weights and dimensions? Second, identify what standards your tests need to meet? Third, choose the appropriate salt spray Test Chamber model to ensure that its functions can meet your test requirements (standard, weight, size and quantity). Fourth, choose a good brand.
Q: What is a typical salt spray test procedure?
A. Step 1, set up the salt spray Test Chamber. Step 2, prepare test samples. Step 3, prepare the test solution. Step 4, place the test sample and test it.
