NF EN ISO 17226-2

NF EN ISO 17226-2

February 2019
Standard Current

Leather - Chemical determination of formaldehyde content - Part 2 : method using colorimetric analysis

This document specifies a method for the determination of free and released formaldehyde in leathers. This method, based on colorimetric analysis, is not intended to be used for a precise quantification of formaldehyde.The formaldehyde content is taken to be the quantity of free-formaldehyde and formaldehyde extracted through hydrolysis contained in a water extract from the leather under standard conditions.This process is not absolutely selective for formaldehyde. Other compounds such as extracted dyes could interfere at 412 nm.

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Main informations

Collections

National standards and national normative documents

Publication date

February 2019

Number of pages

16 p.

Reference

NF EN ISO 17226-2

ICS Codes

59.140.30   Leather and furs

Classification index

G52-228-2

Print number

1

International kinship

ISO 17226-2:2018

European kinship

EN ISO 17226-2:2019
Sumary
Leather - Chemical determination of formaldehyde content - Part 2 : method using colorimetric analysis

This document specifies a method for the determination of free and released formaldehyde in leathers. This method, based on colorimetric analysis, is not intended to be used for a precise quantification of formaldehyde.

The formaldehyde content is taken to be the quantity of free-formaldehyde and formaldehyde extracted through hydrolysis contained in a water extract from the leather under standard conditions.

This process is not absolutely selective for formaldehyde. Other compounds such as extracted dyes could interfere at 412 nm.

Replaced standards (1)
NF EN ISO 17226-2
July 2008
Standard Cancelled
Leather - Chemical determination of formaldehyde content - Part 2 : method using colorimetric analysis

ISO 17226-2:2008 specifies a method for the determination of free and released formaldehyde in leathers. This method is based on colorimetric analysis. The formaldehyde content is taken to be the quantity of free-formaldehyde and formaldehyde extracted through hydrolysis contained in a water extract from the leather under standard conditions This process is not absolutely selective for formaldehyde. Other compounds such as extracted dyes could interfere at 412 nm.

Table of contents
  • 1 Domaine d'application
  • 2 Références normatives
  • 3 Termes et définitions
  • 4 Conformité
  • 5 Principe
  • 6 Réactifs
  • 7 Appareillage
  • 8 Modes opératoires
  • 9 Expression des résultats
  • 10 Rapport d'essai
  • Annexe A Fidélité: fiabilité de la méthode colorimétrique
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