Full Description

1.1 This test method covers procedures for the determination of dissolved hexavalent chromium in waste water, surface water, and drinking water.

1.2 The precision and bias of this test method has been tested in reagent water and industrial waste water and has been found suitable over the range of approximately 1 to 1000 [mu]g/L. See Table 1 for details. Higher levels can be determined by appropriate dilution.

1.3 Samples containing very high levels of anionic species (that is, chloride, sulfate, etc.) may cause column overload. Samples containing high levels of reducing species (that is, sulfides, sulfites, etc.) may cause reduction of Cr(VI) to Cr(III). This can be minimized by buffering the sample to a pH of 9 to 9.5, filtering it, storing it at 4

Product Details

Published: 01/01/1997 Number of Pages: 6File Size: 1 file , 58 KB