ASTM D4450-85(2019)
Standard Test Method for Analysis of Zinc Hydroxy Phosphite Pigment

Standard No.
ASTM D4450-85(2019)
Release Date
2019
Published By
American Society for Testing and Materials (ASTM)
Latest
ASTM D4450-85(2019)
Scope
1.1 This test method is intended for the determination of zinc oxide and phosphorous acid content of the pigment commercially known as zinc hydroxy phosphite. The zinc content is determined by ethylenediaminetetraacetate (EDTA) titration and calculated as zinc oxide (ZnO), while the phosphorus content is determined colorimetrically and calculated as phosphorous acid (H3PO3). 1.2 The analytical procedures appear in the following order: Sections Zinc oxide 6 through 8 Phosphorous acid 9 through 14 1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard. 1.4 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. 1.5 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.

ASTM D4450-85(2019) Referenced Document

  • ASTM D1193 Standard Specification for Reagent Water

ASTM D4450-85(2019) history

Standard Test Method for Analysis of Zinc Hydroxy Phosphite Pigment


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