This document specifies a method for the determination of free and released formaldehyde in leathers. This method@ based on high performance liquid chromatography (HPLC)@ is selective and not sensitive to coloured extracts and is intended to be used for 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.
EN ISO 17226-1:2019 history
2021EN ISO 17226-1:2021 Leather - Chemical determination of formaldehyde content - Part 1: Method using high-performance liquid chromatography (ISO 17226-1:2021)
2019EN ISO 17226-1:2019 Leather - Chemical determination of formaldehyde content - Part 1: Method using high performance liquid chromatography
2008EN ISO 17226-1:2008 Leather - Chemical determination of formaldehyde content - Part 1: Method using high performance liquid chromatography