Salt spray test, salt spray test

Shenzhen Yitong Testing Technology Co., Ltd.

It is a professional inspection agency that is engaged in the testing, inspection and verification of industrial and consumer products and has a third party's impartial status.

Liu Jian Manager Mobile QQ Email:

(Reliability testing, transport packaging testing, ISTA testing, packaging material testing)

[Details of the project]

The salt spray test is an environmental test for confirming the corrosion resistance of a product or metal material by artificially simulating salt spray environmental conditions created by salt spray test equipment. The severity of the test depends on the duration of exposure.

Laboratory simulation of salt spray can be divided into three categories: neutral salt spray test, acetate spray test, copper salt accelerated acetate spray test.

(1) Neutral salt spray test (NSS test) is the earliest present application of an accelerated corrosion test method. It uses a 5% aqueous solution of sodium chloride, and the pH of the solution is adjusted to a neutral range (6.5 to 7.2) as a solution for spraying. The test temperature is taken at 35°C, and the deposition rate of salt spray is required to be 1 to 2 ml/80 cm/h.

(2) Acetate spray test (ASS test) was developed based on the neutral salt spray test. It is to add some glacial acetic acid in 5% sodium chloride solution, so that the PH value of the solution is reduced to about 3, the solution becomes acidic, and the final salt fog is also changed from neutral salt fog to acidic. Its corrosion rate is about three times faster than the NSS test.

(3) Accelerated Acetate Salt Spray Test (CASS test) is a rapid salt spray corrosion test recently developed abroad. The test temperature is 50°C. A small amount of copper salt, cupric chloride, is added to the salt solution to strongly induce corrosion. . Its corrosion rate is about 8 times that of the NSS test.

Reference test standards: GB/T 2423.17, IEC60068-2-11, ISO4628-3, ASTM B117, JIS-Z2371, JIS-G3141, GJB 150.1, MIL-STD-810F, MIL-STD-883E, and the like.

Large salt spray corrosion test box: Inner box size: 2400*2200*2500mm, outer box size: 2000*2500mm. Do some salt spray tests on large products and equipment.

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Equipment Model:CJ602S3 I

Test temperature range: -75°C～200°C

High temperature setting range: +60°C～+200°C

Low temperature setting range: 0°C～-75°C

Temperature change rate: ≤5Min

Inner box size: 670×650×460mm