ASTM D4487 - 90(2020)
Standard Test Methods for Analysis of Calcium Borosilicate
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Significance and Use
3.1 These test methods compile in one place, recommended procedures for analysis of the pigment known commercially as calcium borosilicate. This pigment is used extensively in paints and the composition is important to the user and producer.
1. Scope
1.1 These test methods cover the analysis of the pigment commercially known as calcium borosilicate.
1.2 The test methods appear in the following order:
| Test Methods | Sections |
| Silicon Dioxide (SiO2) | 6 – 9 |
| Iron Oxide (Fe2O3) | 10 – 13 |
| Boron Trioxide (B2O3) | 17 – 20 |
| Calcium Oxide (CaO) | 21 – 23 |
| Moisture and Volatile Matter | 24 |
| Water of Hydration | 25 to 26 |
| Coarse Particles | 27 |
| Oil Absorption | 28 |
1.3 Individual specimens may be used for the direct determinations of SiO2, B2O3, and CaO. SiO2 and Fe2O3 should be removed before the determination of the B2O3 and CaO.
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
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.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
D185 Test Methods for Coarse Particles in Pigments
D280 Test Methods for Hygroscopic Moisture (and Other Matter Volatile Under the Test Conditions) in Pigments
D281 Test Method for Oil Absorption of Pigments by Spatula Rub-out
D1193 Specification for Reagent Water
ICS Code
ICS Number Code 71.060.50 (Salts)
UNSPSC Code
UNSPSC Code 31211503(Pigment paints); 12171600(Pigments)
Referencing This Standard
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DOI: 10.1520/D4487-90R20
Citation Format
ASTM D4487-90(2020), Standard Test Methods for Analysis of Calcium Borosilicate, ASTM International, West Conshohocken, PA, 2020, www.astm.org
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