ASTM D3859-03 PDF

1.1 These test methods cover the determination of dissolved and total recoverable selenium in most waters and wastewaters. Both test methods utilize atomic absorption procedures, as follows:

SectionsTest Method A-Gaseous Hydride AAS7 to 16Test Method B-Graphite Furnace AAS17 to 26

1.2 These test methods are applicable to both inorganic and organic forms of dissolved selenium. They are applicable also to particulate forms of the element, provided that they are solubilized in the appropriate acid digestion step. However, certain selenium-containing heavy metallic sediments may not undergo digestion.

1.3 These test methods are most applicable within the following ranges:

Test Method A1 to 20 µg/LTest Method B2 to 100 µg/L

1.4 These ranges may be extended (with a corresponding loss in precision) by decreasing the sample size or diluting the original sample, but concentrations much greater than the upper limits are more conveniently determined by flame atomic absorption spectrometry.

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 11.12 and 13.14.

File Size :	1 file , 98 KB
Note :	This product is unavailable in Russia, Ukraine, Belarus
Number of Pages :	11
Published :	06/10/2003
Redline File Size :	2 files , 220 KB