DIN EN 25663:1993-11
Current
The latest, up-to-date edition.
WATER QUALITY; DETERMINATION OF KJELDAHL NITROGEN; METHOD AFTER MINERALIZATION WITH SELENIUM
Hardcopy , PDF
German, English
01-01-1993
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National foreword
Foreword
Text of EN 25663 - No contents section
National annex NA (informative) Committees responsible
National annex NB (informative) Cross-reference
Specifies a method for the determination of nitrogen by a Kjeldahl-type method. Coverage includes reagents, apparatus, procedure, interferences and suggested procedure for removal of selenium from mineralisation residues.
| DocumentType |
Standard
|
| Pages |
11
|
| PublisherName |
German Institute for Standardisation (Deutsches Institut für Normung)
|
| Status |
Current
|
| Standards | Relationship |
| NF EN 25663 : 1994 | Identical |
| NBN EN 25663 : 1994 | Identical |
| BS EN 25663:1993 | Identical |
| ISO 5663:1984 | Identical |
| EN 25663:1993 | Identical |
| SNV DIN EN 25663 : 1993 | Identical |
| UNE-EN 25663:1994 | Identical |
| I.S. EN 25663:1994 | Identical |
| UNI EN 25663 : 1995 | Identical |
| DIN ISO 15923-1:2014-07 | Water quality - Determination of selected parameters by discrete analysis systems - Part 1: Ammonium, nitrate, nitrite, chloride, orthophosphate, sulfate and silicate with photometric detection (ISO 15923-1:2013) |
| DIN EN ISO 14855-1:2013-04 | DETERMINATION OF THE ULTIMATE AEROBIC BIODEGRADABILITY OF PLASTIC MATERIALS UNDER CONTROLLED COMPOSTING CONDITIONS - METHOD BY ANALYSIS OF EVOLVED CARBON DIOXIDE - PART 1: GENERAL METHOD (ISO 14855-1:2012) |
| VDI 3478 Blatt 1:2011-03 | Biological waste gas purification - Bioscrubbers |
| VDI 4631:2011-02 | Quality criteria for biogas plants |
| VDI 4630:2016-11 | Fermentation of organic materials - Characterization of the substrate, sampling, collection of material data, fermentation tests |
| DIN EN ISO 14855-2:2009-10 | DETERMINATION OF THE ULTIMATE AEROBIC BIODEGRADABILITY OF PLASTIC MATERIALS UNDER CONTROLLED COMPOSTING CONDITIONS - METHOD BY ANALYSIS OF EVOLVED CARBON DIOXIDE - PART 2: GRAVIMETRIC MEASUREMENT OF CARBON DIOXIDE EVOLVED IN A LABORATORY-SCALE TEST |
| DIN EN ISO 5667-3:2013-03 | WATER QUALITY - SAMPLING - PART 3: PRESERVATION AND HANDLING OF WATER SAMPLES (ISO 5667-3:2012) |
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