Astm D 5064 – 01 pdf free download

Standard Practice for
Conducting a Patch Test to Assess Coating Compatibility1

This standard is issued under the fixed designation D 5064; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of the last revision. A number in parentheses indicates the year of the last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.

1. Scope

1.1 This practice covers the procedures for testing coating
compatibility when maintenance of an in-place coating system
is being contemplated. It does not cover procedures for
assessing the integrity of the existing coating to determine if it
can be repainted, nor does it establish compatibility of the
maintenance coating system with the substrate or corrosion
products. The practice is intended for use in the field.
NOTE 1—Pass-Fail Criteria (for example, adhesion requirements) are
not established by this practice. These should be established by the user or
specifier with input from the supplier.

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

1.3 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.

2. Referenced Documents

2.1 ASTM Standards:
D 1186 Test Methods for Nondestructive Measurement of
Dry Film Thickness of Nonmagnetic Coatings Applied to
a Ferrous Base2
D 1400 Test Method for Nondestructive Measurement of
Dry Film Thickness of Nonconductive Coatings Applied to
a Nonferrous Metal Base2
D 3359 Test Methods for Measuring Adhesion by Tape
Test2
D 4138 Test Method for Measurement of Dry Film Thickness of Protective Coating Systems by Destructive Means3
D 4414 Practice for Measurement of Wet Film Thickness by
Notch Gages2
D 4541 Test Method for Pull-Off Strength of Coatings
Using Portable Adhesion Testers3