By What is ASTM B117 standard?
ASTM B117 salt fog or salt spray test is a very popular corrosion test designed to provide corrosion resistance information on metals and coated metals. The ASTM B117 test standard has also been approved for use by Department of Defense agencies.
Why salt spray test is required?
Salt spray testing is a method of checking the corrosion resistance of coatings and materials used to manufacture products such as fasteners. During salt spray testing, an accelerated corrosive attack is produced in order to better predict how well the coating protects the metal.
What is the full form of ASTM Standards?
ASTM International (ASTM), originally known as the American Society for Testing and Materials, is an international standards organization that develops and publishes voluntary consensus technical standards for a wide range of materials, products, systems, and services.
What is CASS test?
ASTM B368 is a cyclic corrosion test that uses a solution of sodium chloride and ammonium sulfate which is much more dilute than traditional salt fog (spray). Also known as the CASS test, this test is commonly used to evaluate paints on steel as well as to determine corrosion resistance of various aluminum alloys.
What does the ASTM B117 salt spray chamber do?
The ASTM B117 salt spray cabinet, it’s the sole salt spray test chamber on the market with a 360-degree read into the chamber. The salt spray testing equipment is a world standardized and widespread corrosion check technique, accustomed check corrosion resistance of materials and surface coatings.
When to use a thermal shock test chamber?
Thermal shock testing chambers are used for environmental stress screening as well as highly accelerated life testing.
What is the ASTM B117 salt fog Standard?
The ASTM B117 salt fog test standard calls for the temperature to be 35⁰C and relative humidity to be 6.5pH to 7.2pH. The salt atmosphere is to be five parts sodium chloride to 95 parts water. The water is ASTM D1193 Type IV water. Compressed air is used to introduced he salt solution into the chamber.
How is thermal shock resistance measured in the lab?
Analysis of Thermal Shock resistance happens in the lab much the same way that it happens in a live-use scenario; the test material is exposed to rapidly changing temperatures.