NF EN 12338

NF EN 12338

October 1998
Standard Cancelled

Water quality - Determination of mercury - Enrichment methods by amalgamation

Le présent document s'adresse aux laboratoires ayant à doser le mercure total, à de faibles concentrations dans les eaux.

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Main informations

Collections

National standards and national normative documents

Publication date

October 1998

Number of pages

25 p.

Reference

NF EN 12338

ICS Codes

13.060.50   Examination of water for chemical substances

Classification index

T90-113-3

Print number

1 - 07/12/2002

European kinship

EN 12338:1998
Sumary
Water quality - Determination of mercury - Enrichment methods by amalgamation

Le présent document s'adresse aux laboratoires ayant à doser le mercure total, à de faibles concentrations dans les eaux.
Standard replaced by (1)
NF EN ISO 12846
June 2012
Standard Current
Water quality — Determination of mercury — Method using atomic absorption spectrometry (AAS) with and without enrichment

Table of contents
  • Avant-propos
    3
  • 0 Introduction
    4
  • 1 Domaine d'application
    4
  • 2 Références normatives
    4
  • 3 Interférences générales
    5
  • 4 Dosage du mercure après réduction avec le chlorure d'étain(II) et enrichissement par amalgame
    6
  • 4.1 Gamme de mesure
    6
  • 4.2 Principe
    6
  • 4.3 Interférences
    6
  • 4.4 Réactifs
    6
  • 4.5 Appareillage
    8
  • 4.6 Échantillonnage et prétraitement de l'échantillon
    9
  • 4.7 Méthode de digestion au permanganate peroxodisulfate
    9
  • 4.8 Mode opératoire
    11
  • 4.9 Calculs
    12
  • 4.10 Expression des résultats
    12
  • 4.11 Rapport d'essai
    12
  • 5 Dosage du mercure après réduction avec le tétrahydroborate de sodium et enrichissement par amalgame
    13
  • 5.1 Gamme de mesure
    13
  • 5.2 Principe
    13
  • 5.3 Interférences
    13
  • 5.4 Réactifs
    13
  • 5.5 Appareillage
    14
  • 5.6 Échantillonnage et prétraitement de l'échantillon
    14
  • 5.7 Méthode de digestion au permanganate peroxodisulfate
    14
  • 5.8 Mode opératoire
    16
  • 5.9 Calculs
    16
  • 5.10 Expression des résultats
    16
  • 5.11 Rapport d'essai
    16
  • 6 Données de fidélité
    17
  • Annexe A (informative) Méthode de digestion par ultrasons
    19
  • Annexe B (informative) Méthode de digestion avec un autoclave
    20
  • Annexe C (informative) Méthode de digestion par micro-ondes
    21
  • Annexe D (informative) Bibliographie
    23
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