WATER QUALITY. DETERMINATION OF NITROGEN. PART 1: METHOD USING OXIDATIVE DIGESTION WITH PEROXODISULFATE. (ISO 11905-1:1997).

Available format(s)

Hardcopy , PDF

Language(s)

Spanish, Castilian, English

Published date

01-12-1998

Publisher

Asociacion Espanola de Normalizacion

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)

Committee	CTN 77/SC 1
DocumentType	Standard
Pages	20
PublisherName	Asociacion Espanola de Normalizacion
Status	Current

Standards	Relationship
ISO 11905-1:1997	Identical
NBN EN ISO 11905-1 : 1998	Identical
NEN EN ISO 11905-1 : 1998	Identical
NS EN ISO 11905-1 : 1ED 1998	Identical
I.S. EN ISO 11905-1:1998	Identical
SN EN ISO 11905-1 : 1999	Identical
UNI EN ISO 11905-1 : 2001	Identical
BS EN ISO 11905-1:1998	Identical
EN ISO 11905-1 : 1998	Identical
NF EN ISO 11905-1 : 1998	Identical
DIN EN ISO 11905-1:1998-08	Identical