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
Leather - Chemical determination of formaldehyde content - Part 2: Method using colorimetric analysis (ISO 17226-2:2018); German version EN ISO 17226-2:2019— 16 стр.