Name: BS 6068-2.62(1998) : 1998
Brand: BSI

WATER QUALITY - PHYSICAL, CHEMICAL AND BIOCHEMICAL METHODS - DETERMINATION OF NITROGEN - METHOD USING OXIDATIVE DIGESTION WITH PEROXODISULFATE

Published date

23-11-2012

Publisher

British Standards Institution

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 drinking and surface water and treated sewage effluent. ALSO NUMBERED AS BS EN ISO 11905-1: 1998

Committee	GSE/22
DevelopmentNote	Also numbered as BS EN ISO 11905-1. Supersedes 95/521206 DC. (11/2005) Reviewed and confirmed by BSI, July 2008. (06/2008)
DocumentType	Standard
PublisherName	British Standards Institution
Status	Current
Supersedes	95/521206 DC : JUN 95

Standards	Relationship
ISO 11905-1:1997	Identical
EN ISO 11905-1 : 1998	Identical

ISO 2854:1976	Statistical interpretation of data — Techniques of estimation and tests relating to means and variances
EN 1484 : 1997	WATER ANALYSIS - GUIDELINES FOR THE DETERMINATION OF TOTAL ORGANIC CARBON (TOC) AND DISSOLVED ORGANIC CARBON (DOC)
ISO 6060:1989	Water quality — Determination of the chemical oxygen demand
ISO 10304-1:2007	Water quality Determination of dissolved anions by liquid chromatography of ions Part 1: Determination of bromide, chloride, fluoride, nitrate, nitrite, phosphate and sulfate
ISO 5725-2:1994	Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method
ISO 3696:1987	Water for analytical laboratory use — Specification and test methods
EN ISO 3696:1995	Water for analytical laboratory use - Specification and test methods (ISO 3696:1987)