ASTM-D5724 Standard Specification for Gouache Paints

ASTM-D5724 - 2016 EDITION - CURRENT
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This specification establishes the requirements for composition, physical properties, performance, and labeling of gouache paints. Covered here are pigments, vehicles, and additives, wherein the requirements for which are included for pigment identification, lightfastness, and consistency. Some pigments meeting the lightfastness requirements in this specification are listed herein. Also, in order to identify other pigments that meet these requirements, instructions are given for test specimen preparation and the respective test methods for determining relative lightfastness. The conditions not covered in this specification that affect gouache paints are substrate, environmental conditions, storage, vehicles, pigments, additives, inerts, preparation of samples, coarse particles, fineness of dispersions, consistency, freeze-thaw stability, opacity (hiding power), bleeding, and color specification.

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Scope

1.1 This specification establishes requirements for composition, physical properties, performance, and labeling of gouache paints.

1.2 This specification covers pigments, vehicles, and additives. Requirements are included for pigment identification, lightfastness, and consistency.

1.3 Table 1 lists some pigments meeting the lightfastness requirements in this specification. In order to identify other pigments that meet these requirements, instructions are given for test specimen preparation. Test methods for determining relative lightfastness are referenced.

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

(A) Color Index Number 77491 can be used as an alternate to 77492 for PBr 7.
(B) Information on white pigments is given in Appendix X3.

Keywords

gouache paints; lightfastness; quality requirements; test specimens;; ICS Number Code 87.040 (Paints and varnishes); 97.195 (Items of art and handicraft)

To find similar documents by ASTM Volume:

06.02 (Paint -- Products and Applications; Protective Coatings; Pipeline Coatings)

To find similar documents by classification:

87.040 (Paints and varnishes Including coating powders, paint coatings and protective paint systems)

97.195 (Items of art and handicrafts Including equipment and materials for creating items of art and handicrafts)

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Document Number

ASTM-D5724-16

Revision Level

2016 EDITION

Status

Current

Modification Type

Revision

Publication Date

March 1, 2016

Document Type

Specification

Page Count

8 pages

Committee Number

D01.57