NF T90-023
NF T90-023

NF T90-023

September 1982
Standard Cancelled

TESTING WATER. DETERMINATION OF THE ORTHOPHOSPHATE,POLYPHOSPHATE AND TOTAL PHOSPHORUS CONTENT (SPECTROMETRIC METHOD).

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Main informations

Collections

National standards and national normative documents

Publication date

September 1982

Number of pages

10 p.

Reference

NF T90-023

ICS Codes

13.060.01   Water quality in general

Classification index

T90-023

Print number

2 - février 1983
Replaced standards (1)
T90-023
T90-023
May 1978
Standard Cancelled
Testing water : determination of orthophosphates, hydrolysable phosphates and total phosphorus (spectrophotometric method).

Standard replaced by (1)
NF EN 1189
NF EN 1189
January 1997
Standard Cancelled
Water quality. Determination of phosphorus. Ammonium molybdate spectrometric method.

Le présent document s'adresse aux laboratoires ayant à doser le phosphore présent dans les eaux sous diverses formes. Il est susceptible de servir de base de référence dans la réglementation française relative à la qualité des eaux.

Table of contents
  • Avant-propos
    1
  • 1 Objet et domaine d'application
    2
  • 2 Échantillonnage
    2
  • 3 Dosage des orthophosphates
    2
  • 3.1 Principe
    2
  • 3.2 Réactifs
    2
  • 3.3 Appareillage
    3
  • 3.4 Mode opératoire
    3
  • 3.5 Expression des résultats
    4
  • 3.6 Cas particulier
    4
  • 4 Dosage des polyphosphates
    5
  • 4.1 Principe
    5
  • 4.2 Réactifs
    5
  • 4.3 Appareillage
    5
  • 4.4 Mode opératoire
    5
  • 5 Dosage du phosphore total
    6
  • 5.1 Dosage après minéralisation au persulfate en ballon de Kjeldahl
    6
  • 5.2 Dosage après minéralisation au persulfate à l'autoclave
    7
  • 5.3 Dosage après minéralisation à l'acide perchlorique
    9
  • 6 Procès-verbal d'essai
    10
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