Leather - Chemical determination of formaldehyde content - Part 1: Method using high performance liquid chromatography (ISO 17226-1:2018); German version EN ISO 17226-1:2019— 15 стр.
Leather - Chemical determination of formaldehyde content - Part 1: Method using liquid chromatography (ISO/DIS 17226-1:2020); German and English version prEN ISO 17226-1:2020
Leather - Chemical determination of formaldehyde content - Part 1: Method using high performance liquid chromatography (ISO 17226-1:2018); German version EN ISO 17226-1:2019— 15 стр.