NF ISO 22262-2

NF ISO 22262-2

October 2014
Standard Current

Air quality - Bulk materials - Part 2 : quantitative determination of asbestos by gravimetric and microscopical methods

ISO 22262-2:2014 specifies procedures for quantification of asbestos mass fractions below approximately 5 %, and quantitative determination of asbestos in vermiculite, other industrial minerals and commercial products that incorporate these minerals.ISO 22262-2:2014 is applicable to the quantitative analysis of:a) any material for which the estimate of asbestos mass fraction obtained using ISO 22262-1 is deemed to be of insufficient precision to reliably classify the regulatory status of the material, or for which it is considered necessary to obtain further evidence to demonstrate the absence of asbestos;b) resilient floor tiles, asphaltic materials, roofing felts and any other materials in which asbestos is embedded in an organic matrix;c) wall and ceiling plasters, with or without aggregate;d) mineral products such as wollastonite, dolomite, calcite, talc or vermiculite, and commercial products containing these minerals.It is not the intent of ISO 22262 to provide instruction in the fundamental microscopical and analytical techniques.

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Main informations

Collections

National standards and national normative documents

Publication date

October 2014

Number of pages

57 p.

Reference

NF ISO 22262-2

ICS Codes

13.040.20   Ambient atmospheres

Classification index

X43-066-2

Print number

1

International kinship

ISO 22262-2:2014
Sumary
Air quality - Bulk materials - Part 2 : quantitative determination of asbestos by gravimetric and microscopical methods

ISO 22262-2:2014 specifies procedures for quantification of asbestos mass fractions below approximately 5 %, and quantitative determination of asbestos in vermiculite, other industrial minerals and commercial products that incorporate these minerals.

ISO 22262-2:2014 is applicable to the quantitative analysis of:

a) any material for which the estimate of asbestos mass fraction obtained using ISO 22262-1 is deemed to be of insufficient precision to reliably classify the regulatory status of the material, or for which it is considered necessary to obtain further evidence to demonstrate the absence of asbestos;

b) resilient floor tiles, asphaltic materials, roofing felts and any other materials in which asbestos is embedded in an organic matrix;

c) wall and ceiling plasters, with or without aggregate;

d) mineral products such as wollastonite, dolomite, calcite, talc or vermiculite, and commercial products containing these minerals.

It is not the intent of ISO 22262 to provide instruction in the fundamental microscopical and analytical techniques.

Table of contents
  • Avant-propos
    v
  • Introduction
    vi
  • 1 Domaine d'application
    1
  • 2 Références normatives
    1
  • 3 Termes et définitions
    2
  • 4 Abréviations
    6
  • 5 Détermination des exigences analytiques
    6
  • 6 Étendue de mesure
    7
  • 7 Limite de quantification
    8
  • 8 Principe
    8
  • 9 Précautions de sécurité
    8
  • 10 Appareillage
    8
  • 11 Réactifs
    10
  • 12 Taille et homogénéité de l'échantillon
    10
  • 13 Méthodes de réduction gravimétrique de la matrice
    11
  • 14 Modes opératoires de quantification de l'amiante dans le résidu final issu de la réduction gravimétrique de la matrice
    19
  • 15 Détermination de la concentration en amphiboles asbestiformes dans la vermiculite
    26
  • 16 Détermination de la concentration en amiante du talc
    31
  • 17 Détermination de la conformité aux limites de contrôle réglementaires
    31
  • 18 Rapport d'essai
    34
  • Annexe A (normative) Types de matériaux contenant de l'amiante d'origine commerciale et modes opératoires d'analyse optimaux
    36
  • Annexe B (normative) Durées de centrifugation requises pour la séparation des amphiboles dans une liqueur dense
    44
  • Annexe C (normative) Exemple de rapport d'essai
    46
  • Bibliographie
    48
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