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SFS-ISO 29441:2018:en
Water quality — Determination of total nitrogen after UV digestion — Method using flow analysis (CFA and FIA) and spectrometric detection
Soveltamisala
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This International Standard specifies a method for the determination of total nitrogen after inline UV digestion, in various types of waters, such as ground, drinking, surface, and waste waters, in mass concentrations ranging from 2 mg/l to 20 mg/l for total nitrogen, all in the undiluted sample. Other mass concentration ranges are possible, provided the upper limit of the concentration range is exactly 10 times the lower limit (e.g. 0,2 mg/l to 2,0 mg/l). The range of application can be changed by varying the operating conditions.
Tämän julkaisun valmistelusta Suomessa vastaa Suomen ympäristökeskus, puh. 040 724 8795.
This International Standard specifies a method for the determination of total nitrogen after inline UV digestion, in various types of waters, such as ground, drinking, surface, and waste waters, in mass concentrations ranging from 2 mg/l to 20 mg/l for total nitrogen, all in the undiluted sample. Other mass concentration ranges are possible, provided the upper limit of the concentration range is exactly 10 times the lower limit (e.g. 0,2 mg/l to 2,0 mg/l). The range of application can be changed by varying the operating conditions.
Tämän julkaisun valmistelusta Suomessa vastaa Suomen ympäristökeskus, puh. 040 724 8795.
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Velvoittavat viittaukset
ISO 13395 Water quality — Determination of nitrite nitrogen and nitrate nitrogen and the sum of both by flow analysis (CFA and FIA) and spectrometric detection
ISO 3696:1987 Water for analytical laboratory use — Specification and test methods
ISO 5667-3 Water quality — Sampling — Part 3: Guidance on the preservation and handling of water samples
ISO 3696:1987 Water for analytical laboratory use — Specification and test methods
ISO 5667-3 Water quality — Sampling — Part 3: Guidance on the preservation and handling of water samples
Vahvistuspäivä
16.03.2018
Julkaisupäivä
20.03.2018
Painos
1
Sivumäärä
19
Julkaisun kieli
englanti