ASTM D4450-85(2012)

Standard Test Method for Analysis of Zinc Hydroxy Phosphite Pigment

ASTM International, 11/01/2012

Publisher: ASTM

File Format: PDF

$26.00$52.00

Description

Published:01/11/2012

Pages:3

File Size:1 file , 67 KB

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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:

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

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