1.1 This test method is used for the determination of free formaldehyde (HCHO) in emulsion polymers without upsetting existing formaldehyde equilibria. The procedure has been evaluated using acrylic, acrylonitrile-butadiene, carboxylated styrene-butadiene and polyvinyl acetate emulsion polymers. This test method may also be applicable for emulsion polymers of other compositions. The established working range of this test method is from 0.05 to 15 ppm formaldehyde. Emulsion polymers must be diluted to meet the working range.
1.2 This test method minimizes changes in free formaldehyde concentration that can result from changes in the physical or chemical properties of an emulsion polymer.
1.3 There are no known limitations to this test method when used in the manner described. The emulsion polymer test specimen must be prepared with a diluent that has a pH similar to that of the emulsion. Use of an inappropriate pH may upset formaldehyde equilibria and result in incorrect formaldehyde levels.
1.4 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.
1.5 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.
ASTM D5910-05(2012) Referenced Document
ASTM D1193 Standard Specification for Reagent Water
ASTM D2194 Standard Test Method for Concentration of Formaldehyde Solutions
ASTM E180 Standard Practice for Determining the Precision of ASTM Methods for Analysis and Testing of Industrial and Specialty Chemicals
ASTM E682 Standard Practice for Liquid Chromatography Terms and Relationships
ASTM D5910-05(2012) history
2019ASTM D5910-05(2019) Standard Test Method for Determination of Free Formaldehyde in Emulsion Polymers by Liquid Chromatography
2005ASTM D5910-05(2012) Standard Test Method for Determination of Free Formaldehyde in Emulsion Polymers by Liquid Chromatography
2005ASTM D5910-05 Standard Test Method for Determination of Free Formaldehyde in Emulsion Polymers by Liquid Chromatography
1996ASTM D5910-96 Standard Test Method for Determination of Free Formaldehyde in Emulsion Polymers by Liquid Chromatography