Testing water. Determination of nitrogen (ammonia).

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Main informations

Collections

National standards and national normative documents

Publication date

August 1975

Number of pages

6 p.

Reference

NF T90-015

ICS Codes

13.060.50 Examination of water for chemical substances

Classification index

T90-015

Print number

1 - septembre 1975

Standard replaced by (2)

NF T90-015-1

January 2000

Standard Current

Water quality - Determination of ammonium - Part 1 : post steam distillation titrimetric method

Le présent document s'adresse aux laboratoires ayant à doser l'ammonium dans les eaux et principalement les eaux résiduaires à des concentrations supérieures à 4 mg/l (pour une prise d'essai de 50 ml).

NF T90-015-2

January 2000

Standard Current

Water quality - Determination of ammonium - Part 2 : indophenol blue spectrophotometric method

Le présent document s'adresse aux laboratoires ayant à doser l'ammonium dans les eaux à des concentrations supérieures à 2 ug/l.

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