ASTM International - ASTM D4450-85(2019)

Standard Test Method for Analysis of Zinc Hydroxy Phosphite Pigment

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Organization: ASTM International
Publication Date: 1 October 2019
Status: active
Page Count: 3
ICS Code (Pigments and extenders): 87.060.10
significance And Use:

4.1 This test method may be used to confirm the stated zinc oxide and phosphorous acid content of zinc hydroxy phosphite pigment.

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.

Document History

ASTM D4450-85(2019)
October 1, 2019
Standard Test Method for Analysis of Zinc Hydroxy Phosphite Pigment
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...
November 1, 2012
Standard Test Method for Analysis of Zinc Hydroxy Phosphite Pigment
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...
November 1, 2007
Standard Test Method for Analysis of Zinc Hydroxy Phosphite Pigment
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...
January 1, 1996
Standard Test Method for Analysis of Zinc Hydroxy Phosphite Pigment
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 EDTA...
January 25, 1985
Standard Test Method for Analysis of Zinc Hydroxy Phosphite Pigment
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...
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