ASTM D1844-86(1999)

Standard Test Methods for Chemical Analysis of Basic Lead Silicochromate

STANDARD published on 10.7.1999

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The information about the standard:

Designation standards: ASTM D1844-86(1999)
Note: WITHDRAWN
Publication date standards: 10.7.1999
SKU: NS-18555
The number of pages: 5
Approximate weight : 15 g (0.03 lbs)
Country: American technical standard
Category: Technical standards ASTM

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Annotation of standard text ASTM D1844-86(1999) :

Keywords:

Anti-corrosion pigments-basic lead silicochromate, Basic lead silicochromate, Chromium trioxide content, Lead content-paints/related coatings/materials, Pigments-basic lead silicochromate, Silica content, chromium trioxide content of basic lead silico-chromate pigment, test, ICS Number Code 87.060.10 (Pigments and extenders)

Additional information

1. Scope

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 This standard does not purport to address the safety problems, 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. >

2. Referenced Documents

D387-00	Standard Test Method for Color and Strength of Chromatic Pigments with a Mechanical Muller
D1648-86(2020)	Standard Specification for Basic Lead Silicochromate Pigment
D2371-19(2025)	Standard Test Method for Pigment Content of Solvent-Reducible Paints
D281-12(2021)	Standard Test Method for Oil Absorption of Pigments by Spatula Rub-out
D280-01(2023)	Standard Test Methods for Hygroscopic Moisture (and Other Matter Volatile Under the Test Conditions) in Pigments
D185-07(2023)	Standard Test Methods for Coarse Particles in Pigments
D1193-24	Standard Specification for Reagent Water

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