4.1 This specification establishes quality requirements and provides a basis for common understanding among producers, distributors, and users.
4.2 It is not intended that all paints meeting the requirements be identical nor of uniform excellence in all respects. Variations in manufacture, not covered by this specification, may cause some artists to prefer one brand over another, either of which may be acceptable under this specification.
1.1 This specification establishes requirements for composition, physical properties, performance, and labeling of artists' acrylic emulsion paints.
1.2 This specification covers pigments, vehicles, and additives. Requirements are included for pigment identification, lightfastness, bleeding, consistency, and drying time.
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.
| Colour Index Name | Lightfastness Category | Common Name and Chemical Class | Colour Index Number |
| Acrylic | |||
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| YELLOWS |
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