ASTM D5531-17(2023)

Podrobné informácie

Označenie: ASTM D5531-17(2023)

Dátum vydania: 01.07.2023

Stránok: 4

Krajina: Americká technická norma

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Anotácia

This guide covers three levels of physical product standards (preparation, maintenance, and distribution) for color or geometric appearance, or both, of coatings commonly used in the coatings industry. Described here is terminology to describe each level, and techniques for generating and caring for standards. Product standards are the only standards by which products should be accepted or rejected for color or appearance. A master standard is generated from the concept color submitted by the customer. Duplicate master standards, when needed, are generated from the master standard. Working standards are generated from a duplicate master standard. They are used in the laboratory or on the production line to accept or reject the color or appearance of coatings. After initial generation, product standards must be maintained to ensure they remain valid. This guide considers the characteristics of product standards, factors to be considered in their creation, and factors to be considered in their replacement.


Keywords:
appearance, color, color measurements, duplicate standard, master standard, physical standards, product standard, working standard,, ICS Number Code 87.020 (Paint coating processes)