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ASTM D5794-95(2008)

Historical Reaffirmation

Standard Guide for Determination of Anions in Cathodic Electrocoat Permeates by Ion Chromatography

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1.1 This guide is used for the determination of nitrate anion in electrocoat bath permeate by use of chemically suppressed and non-suppressed ion chromatography (IC).

1.2 Other anions, with the exception of phosphate, may be determined in electrocoat bath permeates by use of this guide.

1.3 It is the responsibility of the user of this guide to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.


It is important to monitor the anion concentrations and anion contaminants in electrocoat baths. Wet chemical methods are long, tedious, and of questionable accuracy in the ppm range. Ion chromatography offers a fast, convenient and accurate alternative. Since IC analysis of electrocoat bath samples is difficult, the permeates are often analyzed for contaminants. This guide addresses some important considerations for such analyses.

SDO ASTM: ASTM International
Document Number D5794
Publication Date Feb. 1, 2008
Language en - English
Page Count 2
Revision Level 95(2008)
Supercedes
Committee D01.21
Publish Date Document Id Type View
Oct. 10, 1995 D5794-95R02 Revision
Oct. 10, 1995 D5794-95 Revision
Feb. 1, 2021 D5794-95R21 Reaffirmation
July 1, 2014 D5794-95R14 Reaffirmation
Feb. 1, 2008 D5794-95R08 Reaffirmation