ISO 9965:1993
Water quality — Determination of selenium — Atomic absorption spectrometric method (hydride technique)
Under the conditions of the method specified (thermal decomposition of selenium hydride for AAS), only Se(IV) is quantitatively converted to the hydride. To avoid errors in determination, other oxidation states need to be converted to Se(IV) prior to the determination. The absorbance is measured at a wavelength of 196,0 nm. The method determines selenium and organically bonded selenium in drinking waters, ground waters and surface waters, in a concentration range of 1 µg/l and 10 µg/l. Higher concentrations can be determined by a suitable dilution of the water sample.
| Get this standard | Prices exclude GST | |
|---|---|---|
| PDF ( Single user document) |
$118.26 NZD
|
|
| Networkable PDF |
Price varies
|
Keep me up-to-date
Register to receive notifications when updates are made to this standard.
Related Information
Similar Standards
-
BS 2690-102:1979
Methods of testing water used in industry, Hydrazine: spectrophotometric method (4-dimethylaminobenzaldehyde)
-
BS 2690-104:1983
Methods of testing water used in industry, Silica: reactive, total and suspended
-
BS 2690-115:1983
Methods of testing water used in industry, Cyclohexylamine: spectrophotometric method
-
BS 2690-116:1983
Methods of testing water used in industry, Morpholine: spectrophotometric method