HOW TO USE A MICROMETERMany devices can be used to ensure that dimensions are correct, with varying degrees of accuracy. Tape measures, calipers, optical comparators, and many more types of measuring tools can be used to make measurements. One of the most notable and accurate tools for measuring is the micrometer. ...

The salt spray test is divided into two categories, one is the natural environmental exposure test, and the other is the artificial accelerated simulated salt spray environment test. The artificial simulated salt spray environment test uses a test equipment with a certain volume space, the salt spray test chamber, to artificially use the salt spray environment in the volume space to assess the sal...

Neutral salt spray test (NSS);Acetate spray test (AASS);Copper accelerated acetate spray test (CASS);Alternating salt spray test.

The salt spray test is an accelerated corrosion resistance evaluation method for an artificial atmosphere. It atomizes a certain concentration of salt water; it is sprayed in a closed incubator to reflect the corrosion resistance of the sample to be tested by observing the change of the sample to be placed in the box for a period of time. It is an accelerated test. The method has the salt concentr...