DIN EN ISO 17226-2:2008
Leather - Chemical determination of formaldehyde content - Part 2: Method using colorimetric analysis (ISO 17226-2:2008); German version EN ISO 17226-2:2008

Standard No.

DIN EN ISO 17226-2:2008

Release Date

2008

Published By

German Institute for Standardization

Status

Withdraw 2009-09

Replace By

DIN EN ISO 17226-2:2009

Latest

DIN EN ISO 17226-2:2019-04

Scope

This part of ISO 17226 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.

DIN EN ISO 17226-2:2008 history

• 2019 DIN EN ISO 17226-2:2019-04 Leather - Chemical determination of formaldehyde content - Part 2: Method using colorimetric analysis (ISO 17226-2:2018); German version EN ISO 17226-2:2019
• 2019 DIN EN ISO 17226-2:2019 Leather - Chemical determination of formaldehyde content - Part 2: Method using colorimetric analysis (ISO 17226-2:2018)
• 2017 DIN EN ISO 17226-2:2017 Leather - Chemical determination of formaldehyde content - Part 2: Method using colorimetric analysis (ISO/DIS 17226-2:2017); German and English version prEN ISO 17226-2:2017
• 2009 DIN EN ISO 17226-2:2009 Leather - Chemical determination of formaldehyde content - Part 2: Method using colorimetric analysis (ISO 17226-2:2008) (includes Corrigendum AC:2009); English version of DIN EN ISO 17226-2:2009-09
• 2008 DIN EN ISO 17226-2:2008 Leather - Chemical determination of formaldehyde content - Part 2: Method using colorimetric analysis (ISO 17226-2:2008); German version EN ISO 17226-2:2008