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Standard Specification for Gouache Paints
NORMA vydaná dňa 1.11.2021
Označenie normy: ASTM D5724-16(2021)
Dátum vydania normy: 1.11.2021
Kód tovaru: NS-1043789
Počet strán: 8
Približná hmotnosť: 24 g (0.05 libier)
Krajina: Americká technická norma
Kategória: Technické normy ASTM
Nátěrové hmoty, barvy a laky
Umělecké předměty, předměty uměleckých řemesel
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.
Keywords:
gouache paints, lightfastness, quality requirements, test specimens,, ICS Number Code 87.040 (Paints and varnishes),97.195 (Items of art and handicraft)
Significance and Use | ||||||||||||||||||||
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. |
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1. 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. 1.5?This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee. |
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2. Referenced Documents | ||||||||||||||||||||
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