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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Touchstone has laboratory tested both coupons and entire components for automotive, aerospace, and other industries. 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.
I talked to a guy who worked on the test, and he astk me that they eventually determined that hours in CASS meant 1 year adtm Detroit’s environment in the 50s or 60s. Thanks for your response Ted, appreciate your time! How can we help?
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard.
It is also used for testing chromium plating on zinc and steel die castings. Typical exposure lengths in hours are: No other units of measurement are included in this standard.
Consulting on corrosion problems is also available. Most paints and powder coatings would be organic coatings. Note, however, that you must develop the test yourself. 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.
How to compare ASTM B Salt Spray and ASTM B CASS Test?
They all induce different corrosion mechanisms on different substrates. For more specific safety precautionary information see 8. From beautiful Pine Beach New Jersey: The suitability of this test and correlation of results with service experience should be determined before it is specified for coating systems or materials other than those mentioned in this paragraph.
It was a blast from the past hearing from you: Most paints and powder coatings would be organic coatings. Accelerated corrosion testing is a QA measure often undertaken to get asmt early indication if something goes out of whack in the processing, such that the components are unlikely to survive the previously expected period in the real world.
Good luck, asttm please accept the general thrust of this whole thread that any correlations between CASS, NSS, and real life are at best no better than the backup data for your parts that you have accumulated to demonstrate them: It is also applicable to the testing of anodized aluminum.
Benefit from the Auto Technology Proficiency Testing Program Businesses that contract Auto Technology for corrosion testing services can benefit from support for a wide variety of environmental tests, from salt spray tests, salt water immersion and tests for thermal shock, temperature or humidity, conductivity, PH, UV exposure and specific gravity.
CASS Test — Copper-Accelerated Acetic Acid Salt Spray (Fog) Test — (ASTM B368, B117)
Unfortunately, I think the answer is that you will not know the real world life of your cadmium substitute, or how it compares to cadmium in the real world, except by bb368 world testing. You could probably say that about a lot of these tests. Sample preparation and placement: To minimize your searching efforts and to offer multiple viewpoints, we’ve combined some threads into the dialog you’re viewing.
If they only require that the non-knurled areas pass CASS, then you should be fine. We have a standard salt spray test equipment, but we want to do CASS test asfm this equipment.
It’s not possible to diagnose a finishing problem or the hazards of an operation via these pages. Uses include research and development, b38 acceptance, manufacturing control of product or process, and simulated service evaluations.
Please forgive any resultant repetition or failures of asrm order. That said, you generally cannot correlate accelerated tests to tests such as NSS for numerous reasons. You could probably say that about a lot of these tests. Touchstone Research Laboratory, Ltd. An ongoing discussion from through Note 1 — The following standards are not requirements. I am just looking to see if anyone has an opinion on this question. 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?
Ray Astmm Stellar Solutions, Inc. They are referenced for information only: