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National standards and national normative documents

Publication date

June 2004

Number of pages

17 p.

Reference

XP CEN ISO/TS 17226

ICS Codes

59.140.30 Leather and furs

Classification index

G52-213

Print number

1 - 16/06/2004

International kinship

ISO/TS 17226:2003

European kinship

CEN ISO/TS 17226:2003

Sumary

Leather - Chemical tests - Determination of formaldehyde content

ISO/TS 17226:2003 specifies two methods for the determination of free and released formaldehyde in leathers. One method is relatively simple with regard to the laboratory equipment (colorimetric method), while the other needs more sophisticated equipment (HPLC method). The HPLC method is selective and not sensitive to coloured extracts.

Replaced standards (1)

NF G52-213

July 1976

Standard Cancelled

Leathers and hides. Chemical testing of leather. Qualitative detection and determination of formaldehyde.

La présente norme a pour objet de décrire : - une méthode de recherche qualitative du formaldéhyde dans le cuir. - une méthode de dosage. Elle s'applique à tous les types de cuir, mais plus particulièrement aux cuirs de tannage autre que végétal.

Standard replaced by (2)

NF EN ISO 17226-1

July 2008

Standard Cancelled

Leather - Chemical determination of formaldehyde content - Part 1 : method using high performance liquid chromatography

ISO 17226-1:2008 specifies a method for the determination of free and released formaldehyde in leathers. This method is based on high performance liquid chromatography (HPLC). It is selective and not sensitive to coloured extracts. 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.

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

Avant-propos
iv
1
Domaine d'application 1
2
Références normatives 1
3
Préparation et normalisation d'une solution-mère de formaldéhyde 1
4
Méthode CLHP (Chromatographie en phase Liquide à Haute Performance) 2
5
Méthode colorimétrique 4
6
Expression des résultats 8
7
Rapport d'essai 8
Annexe A (informative) Fidélité
9

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