ASTM-B995 Standard Test Method for Chloride Resistance Test for Chromium Electroplated Parts (Russian Mud Test)

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Standard Test Method for Chloride Resistance Test for Chromium Electroplated Parts (Russian Mud Test)



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1.1 This standard details a laboratory method to accelerate the effects of exposure to hygroscopic corrosive chloride compounds on electroplated chromium components. It is applicable to any substrate and coating system that utilizes electroplated chromium as the final metallic coating.

1.2 Field experience has shown that hygroscopic chlorides are significantly more aggressive toward chromium electroplated deposits than sodium chloride. The most common of which is calcium chloride. Corrosion caused by these chlorides is commonly known as the Russian Mud effect.

1.3 The standard does not specify exposure periods to be used for a specific product nor the interpretation to be given to the results. The suitability of this test and correlation of results with service experience should be determined before it is specified for coating systems.

1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. 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.

Significance and Use

2.1 This test is used for specification acceptance, simulated service evaluation, manufacturing control, and research and development. It was developed specifically for use on components with electrodeposited chromium coatings exposed to hygroscopic chlorides. Test and production specimens may be used. Use of a standardized test could help in developing improved quality of chromium electrodeposited components and lead to the development of improved electroplated chromium systems.


chloride; chromium; corrosion; decorative; electroplating; finishes; functional; Russian Mud;; ICS Number Code 25.220.40 (Metallic coatings)

To find similar documents by ASTM Volume:

02.05 (Metallic and Inorganic Coatings; Metal Powders and Metal Powder Products)

To find similar documents by classification:

25.220.40 (Metallic coatings Including electrolytic depositions, cathodic coatings, autocatalytic coatings, etc.)

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Publication Date

Nov. 2, 2021

Document Type

Test Method

Page Count

5 pages

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