Saltar navegación principal
ASTM D1844-86(2020)

ASTM D1844-86(2020)

Standard Test Methods for Chemical Analysis of Basic Lead Silicochromate

2020-07-01 /Active
Significance and Use:

3.1 These test methods may be used to confirm the stated lead oxide, chromium trioxide and silica content of basic lead silicochromate and is useful for quality control.


1.1 These test methods cover the chemical analysis of the pigment commercially known as basic lead silicochromate and are applicable to pigment supplied by the manufacturer and to pigment, but not mixed pigments, separated from liquid coatings. The presence of basic lead silicochromate species shall be confirmed by X-ray diffraction analysis (see Specification D1648).

1.2 For liquid coatings the pigment must first be separated from the vehicle before conducting the analysis.

1.3 The analytical procedures appear in the following order:



Lead oxide

6 to 14

Chromium trioxide

15 to 23


24 to 27

Moisture and other volatile matter


Coarse particles


Oil absorption


Mass color and tinting strength


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 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, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.6 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.

basic lead silicochromate; chromium in basic lead silicochromate; lead in basic lead silicochromate; lead oxide; pigment; silica in basic lead silicochromate;
Idioma Formato

Formato físico y digital

Nota: Precios sin IVA ni gastos de envío

Añadir a la cesta