GMW14872 PDF

1 Sep Materials. GMW Cyclic Corrosion Laboratory Test. 1 Scope. Note: Nothing in this standard supercedes applicable laws and regulations. 13 Aug November Page 7 of Table A1: GMW Mass Loss Targets ( mm thick coupons) – Cosmetic and Functional. Test Exposure. Assured Testing Services provides cyclic corrosion testing using automated chambers, automotive and other specifications including GMW, SAE J .

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Specimens being tested are exposed to a multi-stage changing environment that is composed of three distinctive cycles, these stages can be varied depending on the nature of the specimen undertaking the test, for further information please refer to the full GMW standard.

Both are excellent browsers. A minimum of 1 hour spacing between the end of a previous salt application and the following salt application is required.

Twenty established corrosion test procedures were included within the study. Additionally the US military regularly uses gmd14872 standard to predict life of a variety of coatings and materials on tactical vehicles. Typical Application Through analysis of historic data it has been determined that the GMW test process very closely predicts the corrosion rates for steel and zinc materials exposed to periodic de-icing salts, for this reason the standard has become very popular within the automotive industry.

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GMW | Standards | Ascott Analytical

So this information should not be used as a substitute for referring to a complete test standard, at mgw14872 appropriate revision level. Their ability to replicate the rank order of coatings performance in the real World. Through analysis of historic data it has been determined that the GMW test process very closely predicts the corrosion rates for steel and zinc materials exposed to periodic de-icing salts, for this reason the standard has become very popular within the automotive industry.

During this period salt solution is sprayed directly on to the test samples 4 times, for long enough to thoroughly wet them. Contact Ascott for Further Information.

An accelerated laboratory gmw18472 test to evaluate automotive coatings and components. This website has been developed with modern browsers in mind to allow it to display at its best in a wide variety of viewing situations – including mobile viewing. You need to upgrade your browser You are using Internet Explorer 8 This is considered an out of date browser. Though believed to be gmq14872 at the time of writing, this may change over time. Introduction In the American Iron and Steel Institute, in conjunction with a Committee of the SAE, conducted a study of existing cyclic corrosion tests in order to establish the best methods of predicting the performance of materials used in automotive applications.

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Method Specimens being tested are exposed to a multi-stage changing environment that is composed of three distinctive cycles, these stages can be varied depending on the nature of the specimen undertaking the test, for gwm14872 information please refer to the full GMW standard. The test length is variable dependant on the number of cycles within the total test duration. In the American Iron gmw148772 Steel Institute, in conjunction with a Committee of the SAE, conducted a study of existing cyclic corrosion tests in order to establish the best methods of predicting the performance of materials used in automotive applications.

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Please note The test standard summaries are for general guidance only. But we haven’t supported older browsers like IE8. The process itself comprised of undertaking tests on 10 different materials with each procedure, the results were compared to results gathered through real World exposure from 10 locations around the globe, undertaking the tests with identical materials.

Website design by Peter Bourne Communications. The procedures were judged on: In this context they can be considered to be equivalent and interchangeable terms. This is considered an out of date browser.