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ASTM D4450-85(2007)

Historical Reaffirmation

Standard Test Method for Analysis of Zinc Hydroxy Phosphite Pigment

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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:

1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

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 and health practices and determine the applicability of regulatory limitations prior to use.


SDO ASTM: ASTM International
Document Number D4450
Publication Date Nov. 1, 2007
Language en - English
Page Count 3
Revision Level 85(2007)
Supercedes
Committee D01.31
Publish Date Document Id Type View
Jan. 1, 1990 D4450-85R90E01 Revision
Oct. 1, 2019 D4450-85R19 Reaffirmation
Nov. 1, 2012 D4450-85R12 Reaffirmation
Nov. 1, 2007 D4450-85R07 Reaffirmation
Jan. 1, 1996 D4450-85R96 Reaffirmation
Jan. 25, 1985 D4450-85R02 Reaffirmation