ASTM D2803 - 09(2015)

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ASTM D2803 - 09(2015)英文簡介

1. Scope

1.1 This guide covers three procedures for determining the susceptibility of organic-coated metal substrates to formation of filiform corrosion.

1.2 This guide is limited to the determination of whether filiform corrosion will occur between the organic coating and substrate.

1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.4 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.

Note 1: Procedure B of this standard is equivalent to ISO 4623.

2. Referenced Documents

ASTM Standards

B117 Practice for Operating Salt Spray (Fog) Apparatus

D609 Practice for Preparation of Cold-Rolled Steel Panels for Testing Paint, Varnish, Conversion Coatings, and Related Coating Products

D823 Practices for Producing Films of Uniform Thickness of Paint, Varnish, and Related Products on Test Panels

D1005 Test Method for Measurement of Dry-Film Thickness of Organic Coatings Using Micrometers

D1654 Test Method for Evaluation of Painted or Coated Specimens Subjected to Corrosive Environments

D1730 Practices for Preparation of Aluminum and Aluminum-Alloy Surfaces for Painting

D7091 Practice for Nondestructive Measurement of Dry Film Thickness of Nonmagnetic Coatings Applied to Ferrous Metals and Nonmagnetic, Nonconductive Coatings Applied to Non-Ferrous Metals

E104 Practice for Maintaining Constant Relative Humidity by Means of Aqueous Solutions

International Standard

ISO 4623–1 Paints and Varnishes--Determination of resistance to filiform corrosion-Part 1: On steel

ISO 4623–2 Paints and Varnishes--Determination of resistance to filiform corrosion-Part 2: On aluminum

ISO 4628–10 Paints and Varnishes--Evaluation of degradation of coatings--Designation of quantity and size of defects and of intensity of changes-Part 10: Assessment of filiform corrosion