ASTM B The ASTM B Copper-Accelerated Acetic Acid Salt Spray, ( CASS) Test This test is performed in accordance with the specifications found in the. ASTM B Copper Accelerated Acetic Acid Salt Spray (Fog) Testing. Can be used to test the relative resistance to corrosion of anodized aluminium and. Find the most up-to-date version of ASTM B at Engineering
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If it is, what should we do? The interpretation of CASS and any other corrosion test data is always subjective and open for debate.
CASS Test — Copper-Accelerated Acetic Acid Salt Spray (Fog) Test — (ASTM B368, B117)
It is also applicable to the testing of anodized aluminum. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. astmm
None of our competition has built their company on the impressive credentials we have. It is also used for testing chromium plating on zinc and steel die castings. Any opinions or thoughts would be appreciated. We are developing an alternative to Cadmium plating, and if there is a comparison that someone has done, it would axtm great to find the results of the comparison, i.
This is machinery purchased and used each day to ensure high standards of quality by leading global manufacturers such as Ford, General Electric, Toyota, GM, Kohler, Federal Mogul and Hyundai, among others.
Why Choose Auto Technology – ASTM B, ASTM B and ASTM G85
Our capabilities surpass those of any competing environmental testing lab, with more than 1, cubic feet of available testing space and access to testing equipment rarely found outside of OEMs. If component resists hours B test, how many hours should it resist for B test?
Touchstone Research Laboratory, Ltd. If someone can suggest which of the two tests is better for your xstm, or can propose another test, that would be great. One of the reasons predictive correlation of accelerated corrosion testing to real life is problematic is that the corrosion mechanisms are fundamentally different.
Astk has laboratory tested both coupons and entire components for automotive, aerospace, and other industries. I am just looking to see if anyone has adtm opinion on this question. At the time, it was perhaps the biggest plating-on-plastics line in the country.
You appear to be acknowledging that there is no correlation, but then asking whether the correlation would be Note, however, that you must develop the test yourself. There is no simple formula or factor to convert one test to another. I’m planning to use CASS test. Thanks for your response Ted, appreciate your time!
What is organic coating?
Test time ranges from 24 to thousands of hours, usually in 24 hour increments. Historical Version s – view previous versions of standard. The cut edges of samples that are multilayered, coated, or plated are coated so as to not cause edge corrosion.
Other materials and coatings corrode in fundamentally different ways such that CASS test results have essentially no bearing on their anticipated life. If you’re astk to mimic some field failure, you’re talking completely different corrosion mechanisms Is there any other accelerated qstm available to correlate NSS test to avoid the longer time?
This is because it is a relatively thick zinc coating which under favorable conditions reacts with the small amount of carbon dioxide in the air over the months and years to form tight, glassy, complex zinc carbonate reaction products which greatly slow the corrosion of the zinc.
If the knurling process is causing iron contamination, passivating the parts should help.
How to compare ASTM B Salt Spray and ASTM B CASS Test?
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. An ongoing discussion from through It will give you a different corrosion mechanism. In a salt spray chamber these carbonate reaction products never form, and the zinc corrodes 3b68 rather quickly.