EN ISO 11905-1:1998
Current
The latest, up-to-date edition.
Water quality - Determination of nitrogen - Part 1: Method using oxidative digestion with peroxodisulfate (ISO 11905-1:1997)
20-05-1998
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
This international/European standard specifies a method for the determination of nitrogen present in water, in the form of free ammonia, ammonium, nitrite, nitrate and organic nitrogen compounds capable of conversion to nitrate under the oxidative conditions described. Dissolved nitrogen gas is not determined by this method.
| Committee |
CEN/TC 230
|
| DocumentType |
Standard
|
| PublisherName |
Comite Europeen de Normalisation
|
| Status |
Current
|
| Standards | Relationship |
| NEN EN ISO 11905-1 : 1998 | Identical |
| DIN EN ISO 11905-1:1998-08 | Identical |
| SS-EN ISO 11905-1 : 1998 | Identical |
| NBN EN ISO 11905-1 : 1998 | Identical |
| UNI EN ISO 11905-1 : 2001 | Identical |
| UNE-EN ISO 11905-1:1998 | Identical |
| NF EN ISO 11905-1 : 1998 | Identical |
| I.S. EN ISO 11905-1:1998 | Identical |
| BS EN ISO 11905-1:1998 | Identical |
| BS 6068-2.62(1998) : 1998 | Identical |
| PN EN ISO 11905-1 : 2001 | Identical |
| NS EN ISO 11905-1 : 1ED 1998 | Identical |
| SN EN ISO 11905-1 : 1999 | Identical |
| ISO 11905-1:1997 | Identical |
| 16/30329428 DC : 0 | BS EN 12566-6 - SMALL WASTEWATER TREATMENT SYSTEMS FOR UP TO 50 PT - PART 6: PREFABRICATED TREATMENT UNITS FOR SEPTIC TANK EFFLUENT |
| I.S. EN 12566-7:2016 | SMALL WASTEWATER TREATMENT SYSTEMS FOR UP TO 50 PT - PART 7: PREFABRICATED TERTIARY TREATMENT UNITS |
| BS EN 12566-6:2013 | Small wastewater treatment systems for up to 50 PT Prefabricated treatment units for septic tank effluent |
| I.S. EN 12566-3:2016 | SMALL WASTEWATER TREATMENT SYSTEMS FOR UP TO 50 PT - PART 3: PACKAGED AND/OR SITE ASSEMBLED DOMESTIC WASTEWATER TREATMENT PLANTS |
| EN 12566-6:2016 | Small wastewater treatment systems for up to 50 PT - Part 6: Prefabricated treatment units for septic tank effluent |
| EN 12566-3:2016 | Small wastewater treatment systems for up to 50 PT - Part 3: Packaged and/or site assembled domestic wastewater treatment plants |
| EN 12566-7:2016 | Small wastewater treatment systems for up to 50 PT - Part 7: Prefabricated tertiary treatment units |
| PREN 12566-6 : DRAFT 2015 | SMALL WASTEWATER TREATMENT SYSTEMS FOR UP TO 50 PT - PART 6: PREFABRICATED TREATMENT UNITS FOR SEPTIC TANK EFFLUENT |
| 01/107111 DC : DRAFT SEP 2001 | BS EN 12566-3 - SMALL WASTEWATER TREATMENT SYSTEMS UP TO 50 PT - PACKAGED AND/OR SITE ASSEMBLED DOMESTIC WASTEWATER TREATMENT PLANTS |
| 16/30329422 DC : 0 | BS EN 12566-7 - SMALL WASTEWATER TREATMENT SYSTEMS FOR UP TO 50 PT - PART 7: PREFABRICATED TERTIARY TREATMENT UNITS |
| UNE-EN 12566-6:2017 | Small wastewater treatment systems for up to 50 PT - Part 6: Prefabricated treatment units for septic tank effluent |
| BS EN 12566-7:2013 | Small wastewater treatment systems for up to 50 PT Prefabricated tertiary treatment units |
| PREN 12566-7 : DRAFT 2015 | SMALL WASTEWATER TREATMENT SYSTEMS FOR UP TO 50 PT - PART 7: PREFABRICATED TERTIARY TREATMENT UNITS |
| UNE-EN 12566-7:2017 | Small wastewater treatment systems for up to 50 PT - Part 7: Prefabricated tertiary treatment units |
| UNE-EN 12566-3:2017 | Small wastewater treatment systems for up to 50 PT - Part 3: Packaged and/or site assembled domestic wastewater treatment plants |
| BS EN 12566-3 : 2005 | SMALL WASTEWATER TREATMENT SYSTEMS FOR UP TO 50 PT - PART 3: PACKAGED AND/OR SITE ASSEMBLED DOMESTIC WASTEWATER TREATMENT PLANTS |
| 16/30329416 DC : 0 | BS EN 12566-3 - SMALL WASTEWATER TREATMENT SYSTEMS UP TO 50 PT - PART 3: PACKAGED AND/OR SITE ASSEMBLED DOMESTIC WASTEWATER TREATMENT PLANTS |
| 08/30187745 DC : 0 | BS EN 12566-6 - SMALL WASTEWATER TREATMENT SYSTEMS FOR UP TO 50 PT - PART 6: PREFABRICATED TREATMENT UNITS FOR SEPTIC TANK EFFLUENT |
| I.S. EN 12566-6:2016 | SMALL WASTEWATER TREATMENT SYSTEMS FOR UP TO 50 PT - PART 6: PREFABRICATED TREATMENT UNITS FOR SEPTIC TANK EFFLUENT |
| 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 |
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.