NF A91-131

NF A91-131

April 1962
Standard Current

Hot-galvanized steel wire. Zinc coating specification.

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Main informations

Collections

National standards and national normative documents

Publication date

April 1962

Number of pages

15 p.

Reference

NF A91-131

ICS Codes

25.220.40   Metallic coatings

Classification index

A91-131

Print number

1 - 01/11/1981
Table of contents
  • CHAPITRE I. - GÉNÉRALITÉS
  • Objet de la Norme
    2
  • Nomenclature des contrôles de revêtement
    2
  • Prélèvement des échantillons
    2
  • Zinc pour galvanisation
    2
  • CHAPITRE Il. - EXAMEN SUPERFICIEL
  • Examen du revêtement
    3
  • CHAPITRE III. - CONTROLE DE L'ADHÉRENCE
  • Principe de l'essai et éprouvette
    3
  • Description de l'essai.
    3
  • Interprétation del'essai
    3
  • CHAPITRE IV
  • CONTROLE DE LA MASSE DE ZINC PAR UNITÉ DE SURFACE
  • Principe de l'essai.
    3
  • Préparation des éprouvettes
    4
  • Description del'essaigazométrique
    4
  • a) Appareillage
    4
  • b) Mode opératoire
    4
  • CHAPITRE V. - CONTROLE DE LA CONTINUITÉ DU REVÊTEMENT
  • Principe de l'essai
    5
  • Préparation del'éprouvette
    5
  • Réactif.
    5
  • Description de l'essai.
    5
  • Interprétation del'essai
    6
  • CHAPITRE VI
  • CLASSIFICATION DES REVÊTEMENTS DES FILS GALVANISÉS
  • Observations générales
    6
  • Principe des classifications
    6
  • Classe A
    6
  • Classe B
    7
  • a) Fils d'acier doux
    7
  • b) Fils d'acier dur (retréfilés après galvanisation)
    7
  • Classe C
    7
  • a) Fils d'acier doux
    8
  • b) Fils d'acier dur (galvanisés en opération finale)
    8
  • CHAPITRE VII
  • Conduite et interprétation des essais de contrôle
    8
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