B502-88: AWWA Sodium Polyphosphate, Glassy (Sodium Hexametaphosphate) (PDF)
SKU: STB_0024087-PDF
This standard covers sodium polyphosphate, glassy, for use in water treatment. This material is also known as sodium hexametaphosphate, sodium tetrapolyphosphate, and Grahams salt.
Description
The current standard is a revision of ANSI/AWWA B502-83. Major revisions to the 1983 standard made in this revision are: Section III of the foreword (dealing with impurities) has been expanded; Section 2.23 on phosphorus conversion equivalents has been added; format changes are included to reflect AWWA standard style; a change in the preferred P2O5 test methods and addition of a reference to Standard Methods for the Examination of Water and Wastewater.