Standard Test Methods for Selenium in Water

Importancia y uso:

4.1 In most natural waters selenium concentrations seldom exceed 10 μg/L. However, the runoff from certain types of seleniferous soils at various times of the year can produce concentrations as high as several hundred micrograms per litre. Additionally, industrial contamination can be a significant source of selenium in rivers and streams.

4.2 High concentrations of selenium in drinking water have been suspected of being toxic to animal life. Selenium is a priority pollutant and all public water agencies are required to monitor its concentration.

4.3 These test methods determine the dominant species of selenium reportedly found in most natural and wastewaters, including selenities, selenates, and organo-selenium compounds.

Subcomité:

D19.05

Referida por:

D1971-16R21E01, D8006-24, D4691-17, D4691-17, D4382-18, D8006-24

Volúmen:

11.01

Número ICS:

13.060.50 (Examination of water for chemical substances)

Palabras clave:

atomic absorption; furnace (Method B); hydride technique (Method A); selenium; total recoverable selenium; water ;