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. Testing Specifications of Cyclic Cycles we have met – ASTM, ASTM B, ASTM B, CASS, ASTM G85, GMW, GMW, SAE J, Ford CETP.
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That said, you generally cannot correlate accelerated tests to tests such as NSS for numerous reasons. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Pankaj, I doubt the standard gets that specific, it is probably more a matter to discuss with your customer.
Are these parts stainless steel, or a non-ferrous alloy perhaps? There are probably some blurry areas, as there always are.
That said, you generally cannot correlate accelerated tests to tests such as NSS for numerous reasons. He didn’t say how they ast, failure in the test or the field. All information presented is for general reference and does not represent a professional opinion nor the policy of an author’s employer.
We thank you for help. Uses include research and development, specification acceptance, manufacturing control of product or process, and simulated service evaluations. 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.
Consulting on corrosion problems is also available.
Salt cabinets assuming they’re run properly, which is generally not true also have a great deal of variation that makes any correlation, in my opinion, greatly suspect. Most paints and powder coatings would be organic coatings. Thanks for your response Ted, appreciate your time! Other materials and coatings corrode in fundamentally different ways such that CASS test results have essentially no bearing on their anticipated life. It is also applicable to the testing of anodized aluminum.
Medias this blog was made to help people to easily download or read PDF files. I’m planning to use CASS test. Metallic coatings like galvanizing and nickel and chrome plating are inorganic.
How to compare ASTM B Salt Spray and ASTM B CASS Test?
First a side note about CASS. 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. I’m sure many can relate. For more n368 safety precautionary information see 8.
I am just looking to see if anyone has an opinion on this question. Unfortunately, I think the answer is that you will not b38 the real world life awtm your cadmium substitute, or how it compares to cadmium in the real world, except by real world testing.
You’ll also have to run periodic tests to verify that your correlation is still correct.
I talked to a guy who worked on the test, and he told me that they eventually determined that hours in CASS meant 1 year in Detroit’s environment in the 50s or 60s. Also known as the CASS test, this test is commonly used to evaluate paints on steel as well asttm to determine corrosion resistance of various aluminum alloys.
If component resists hours B test, how many hours should it resist for B test? I have not seen an industrial requirement that uses a microscopic analysis of pores zstm corrosion sites.
Axtm could probably say that about a lot of these tests. Referenced Documents purchase separately The documents listed below are referenced within the wstm standard but are not provided as part of the standard. Touchstone has laboratory tested both coupons and entire components for automotive, aerospace, and other industries.
Ray Kremer Stellar Solutions, Inc. For example, hot dip galvanizing is no doubt the most durable of any finish, often surviving on electrical transmission towers for 75 years or more with no maintenance.
Organic coatings are coatings that are based on organic chemicals basically chemicals that contain carbon. Whether connecting clients to new equipment, providing them access to our own facility, or aiding in quality assurance testing, Auto Technology aetm the partner manufacturers need to improve performance.
How to compare ASTM B117 Salt Spray and ASTM B368 CASS Test?
None of our competition has built their company on the impressive credentials we have. To minimize your searching efforts and to offer multiple viewpoints, we’ve combined some threads into the dialog you’re viewing. If someone can suggest which of the two tests is better for your situation, or can propose another test, that would be great.
An ongoing discussion from through It was a blast from the past hearing from you: Chrome plating is organic or inorganic? One of the reasons predictive b638 of accelerated corrosion testing to real life ast problematic is that the corrosion mechanisms are fundamentally different. You must take the time to develop this correlation yourself because it depends on the paint, substrate, chamber, and test equipment.
Should we consider the parts having failed the CASS TEST when pits appear in chromium layer or when the pits have crossed the nickel layer and copper appears? You appear to be acknowledging that there is no correlation, but then axtm whether the correlation would be Our customer loyalty program offers additional savings on our environmental testing services to certain customers. Use of the test has improved the quality of electroplated sstm and led to the development of new and superior electroplating processes.