1.1 This test method covers the determination of ortho-, pyro-, and meta-phosphates in sodium triphosphate. It depends on direct flow elutriation through a column of ion exchange resin.

1.2 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. Material Safety Data Sheets are available for reagents and materials. Review them for hazards prior to usage.