ASTM International

Standard Test Method for Pigment Content of Water-Emulsion Paints by Low-Temperature Ashing
 N D3723

Annotation

This test method covers a procedure for the pigment content determination of water-based paints. It is applicable only to pigments that do not decompose or lose weight at temperatures below 500°C. Such pigments include most metal oxides, silicates, and a majority of anhydrous inorganic salts.

Many water-based paints contain pigments and organic colorants that lose water of hydration or decompose at this temperature. The residual ash should be carefully inspected for changes in color or texture that could indicate a pigment alteration and hence lead to erroneous results. Caution should therefore be exercised when applying this test method to samples containing unknown pigment compositions.

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

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.

Автоматический перевод:

Метод стандартной пробы для содержания пигмента Водных Эмульсионных красок низко-температурным озолением

Этот метод испытаний покрывает процедуру для определения содержания пигмента красок на водяной основе. Это применимо только к пигментам, не разлагающимся или худеющим при температурах ниже 500°C. Такие пигменты включают большинство оксидов металла, силикатов и большинство безводных неорганических солей.