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EVS-EN ISO 17226-2:2019

Leather - Chemical determination of formaldehyde content - Part 2: Method using colorimetric analysis (ISO 17226-2:2018)

Üldinfo
Kehtiv alates 15.02.2019
Alusdokumendid
ISO 17226-2:2018; EN ISO 17226-2:2019
Tegevusala (ICS grupid)
59.140.30 Parknahk ja karusnahk
Direktiivid või määrused
puuduvad

Standardi ajalugu

Staatus
Kuupäev
Tüüp
Nimetus
15.02.2019
Põhitekst
04.06.2009
Parandus
04.07.2008
Põhitekst
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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EVS-EN ISO 17226-1:2019

Leather - Chemical determination of formaldehyde content - Part 1: Method using high performance liquid chromatography (ISO 17226-1:2018)
Kehtetu alates 15.03.2021
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EVS-EN ISO 17072-1:2019

Leather - Chemical determination of metal content - Part 1: Extractable metals (ISO 17072-1:2019)
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EVS-EN ISO 17072-2:2019

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Kehtetu alates 15.09.2022
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EVS-EN ISO 4045:2018

Leather - Chemical tests - Determination of pH and difference figure (ISO 4045:2018)
Uusim versioon Kehtiv alates 18.06.2018