1970BS EN ISO 17226-2:2019 Leather. Chemical determination of formaldehyde content. Method using high-performance liquid chromatography
2009BS EN ISO 17226-2:2009 Leather. Chemical determination of formaldehyde content. Method using colorimetric analysis
2009BS EN ISO 17226-1:2008 Leather - Chemical determination of formaldehyde content - Part 1: Method using high performance liquid chromatography (ISO 17226-1:2008)