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WATER QUALITY - DETERMINATION OF NITROGEN - METHOD USING OXIDATIVE DIGESTION WITH PEROXODISULFATE

Available format(s)

Hardcopy , PDF

Language(s)

English

Published date

01-01-1998

Publisher

National Standards Authority of Ireland

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For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.

Only cited Standards give presumption of conformance to New Approach Directives/Regulations.

1 Scope
2 Normative references
3 Range of detection
4 Sensitivity
5 Principle
6 Reagents
7 Apparatus
8 Sampling and samples
9 Procedure
    9.1 Test portion
    9.2 Blank test
    9.3 Cleaning digestion vessels
    9.4 Digestion
    9.5 Verification of recovery of organic nitrogen
    9.6 Starting operation
    9.7 Initial sensitivity setting
    9.8 Calibration
    9.9 Determination
10 Expression of results
    10.1 Method of calculation
    10.2 Precision data
11 Test report

Defines a procedure for determining the nitrogen content in water, in the form of free ammonia, nitrite, nitrate and organic nitrogen compounds capable of converting to nitrate under the oxidative conditions described. Does not determine dissolved nitrogen. Applies to the analysing of natural fresh water, sea water, drinking, surface water and treated sewage effluent. ALSO KNOWN AS BS 6068-2.62(1998)

DocumentType	Standard
Pages	28
PublisherName	National Standards Authority of Ireland
Status	Current

Standards	Relationship
BS EN ISO 11905-1:1998	Identical
UNI EN ISO 11905-1 : 2001	Identical
EN ISO 11905-1 : 1998	Identical
ISO 11905-1:1997	Identical
UNE-EN ISO 11905-1:1998	Identical
DIN EN ISO 11905-1:1998-08	Identical