ASTM D1844-86(2014)
Standard Test Methods for Chemical Analysis of Basic Lead Silicochromate

Standard No.

ASTM D1844-86(2014)

Release Date

1986

Published By

American Society for Testing and Materials (ASTM)

Status

Be replaced

Replace By

ASTM D1844-86(2020)

Latest

ASTM D1844-86(2020)

Scope

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:

	Sections
Lead oxide	6 to 14
Chromium trioxide	15 to 23
Silica	24 to 27
Moisture and other volatile matter	28
Coarse particles	29
Oil absorption	30
Mass color and tinting strength	31

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 do......

ASTM D1844-86(2014) Referenced Document

• ASTM D1193 Standard Specification for Reagent Water*， 1999-04-20 Update
• ASTM D1648 Standard Specification for Basic Lead Silicochromate Pigment*， 2020-06-01 Update
• ASTM D185 Standard Test Methods for Coarse Particles in Pigments, Pastes, and Paints
• ASTM D2371 Standard Test Method for Pigment Content of Solvent-Reducible Paints
• ASTM D280 Standard Test Methods for Hygroscopic Moisture (and Other Matter Volatile Under the Test Conditions) in Pigments
• ASTM D281 Standard Test Method for Oil Absorption of Pigments by Spatula Rub-out*， 2007-07-01 Update
• ASTM D387 Standard Test Method for Color and Strength of Chromatic Pigments with a Mechanical Muller*， 2024-04-20 Update

ASTM D1844-86(2014) history

• 2020 ASTM D1844-86(2020) Standard Test Methods for Chemical Analysis of Basic Lead Silicochromate
• 1986 ASTM D1844-86(2014) Standard Test Methods for Chemical Analysis of Basic Lead Silicochromate
• 1986 ASTM D1844-86(2008) Standard Test Methods for Chemical Analysis of Basic Lead Silicochromate
• 1986 ASTM D1844-86(2003) Standard Test Methods for Chemical Analysis of Basic Lead Silicochromate
• 1986 ASTM D1844-86(1999) Standard Test Methods for Chemical Analysis of Basic Lead Silicochromate