BS 6068-2.62(1998) : 1998
Current
The latest, up-to-date edition.
WATER QUALITY - PHYSICAL, CHEMICAL AND BIOCHEMICAL METHODS - DETERMINATION OF NITROGEN - METHOD USING OXIDATIVE DIGESTION WITH PEROXODISULFATE
23-11-2012
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 |
| 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) |
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