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Norm
ISO 9965:1993
Issue date: 1993 07 01
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 ...
Withdrawn: 2014 07 15
Publisher:
International Organization for Standardization
Format:
Digital | 5 Pages
Language:
English
Currently valid:
ICS
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.
ISO/TS 17379-2:2013
2013 06 24
Water quality — Determination of selenium — Part 2: Method using hydride generation atomic absorptio...
Technische Regel
ISO 9965:1993
1993 07 01
Water quality — Determination of selenium — Atomic absorption spectrometric method (hydride techniqu...
Norm
↖
Technische Regel
Issue date :
2013 06 24
Water quality — Determination of selenium — Part 2: Method using hydride generation atomic absorption spectrometry (HG-AAS)
