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ASTM D1726-11

Current Revision

Standard Test Methods for Hydrolyzable Chloride Content of Liquid Epoxy Resins

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1.1 These test methods cover the determination of the easily hydrolyzable chloride content of liquid epoxy resins which are defined as the reaction product of a chlorohydrin and a di- or polyfunctional phenolic compound.

Note 1—There is no known ISO equivalent to this standard.

1.1.1 In Test Method A, the easily hydrolyzable chloride is saponified with potassium hydroxide and directly titrated with hydrochloric acid. This test method can be used for concentrations of 1 weight % and below.

1.1.2 In Test Method B, the easily hydrolyzable chloride is again saponified with potassium hydroxide, then titrated potentiometrically with silver nitrate. This test method can be used for concentrations of 5 to 2500 ppm hydrolyzable chloride.

1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.

1.3 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. For specific hazard statements see Sections 10 and 16.

The hydrolyzable chloride content of liquid epoxy resins is an important variable in determining their reactivity and the properties of coatings made from them. These test methods may be used to determine the hydrolyzable chloride content of manufactured epoxy resins and confirm the stated hydrolyzable chloride content of purchased epoxy resins.

SDO ASTM: ASTM International
Document Number D1726
Publication Date June 1, 2011
Language en - English
Page Count 4
Revision Level 11
Supercedes
Committee D01.33
Publish Date Document Id Type View
June 1, 2011 D1726-11 Revision
Dec. 1, 2003 D1726-03 Revision
June 1, 2019 D1726-11R19 Reaffirmation
Jan. 1, 1996 D1726-90R96 Reaffirmation