ASTM D870-97 - 10.12.1997
 
1. Scope

1.1 This practice covers the basic principles and operating procedures for testing water resistance of coatings by the partial or complete immersion of coated specimens in distilled or de-mineralized water at ambient or elevated temperatures. Although the apparatus and procedure could be employed in immersion tests using solutions of various materials in water, this practice is limited to tests in water alone.

1.2 This practice is limited to the methods of obtaining, measuring, and controlling the conditions and procedures of water immersion tests. It does not specify specimen preparation, specific test conditions, or evaluation of results.

Note 1-Alternative practices for testing the water resistance of coatings include Practices D1735, D2247, and D4585.

1.3 This standard does not purport to address all of the safety problems, 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.>

 
2. Referenced Documents

D4541-22

Standard Test Method for Pull-Off Strength of Coatings Using Portable Adhesion Testers

D3359-23

Standard Test Methods for Rating Adhesion by Tape Test

D4585-07

Standard Practice for Testing Water Resistance of Coatings Using Controlled Condensation

D3363-22

Standard Test Method for Film Hardness by Pencil Test

D2616-25

Standard Test Method for Evaluation of Visual Color Difference With a Gray Scale

D2247-25

Standard Practice for Testing Water Resistance of Coatings in 100 % Relative Humidity

D1735-21

Standard Practice for Testing Water Resistance of Coatings Using Water Fog Apparatus

D1730-09(2020)

Standard Practices for Preparation of Aluminum and Aluminum-Alloy Surfaces for Painting

D1654-24

Standard Test Method for Evaluation of Painted or Coated Specimens Subjected to Corrosive Environments

D1193-24

Standard Specification for Reagent Water

D823-18(2022)

Standard Practices for Producing Films of Uniform Thickness of Paint, Coatings and Related Products on Test Panels

D714-25

Standard Test Method for Evaluating Degree of Blistering of Paints

D610-25

Standard Practice for Evaluating Degree of Rusting on Painted Steel Surfaces

D609-17(2022)

Standard Practice for Preparation of Cold-Rolled Steel Panels for Testing Paint, Varnish, Conversion Coatings, and Related Coating Products