2020DIN EN 45557:2020-09 General method for assessing the proportion of recycled material content in energy-related products; German version EN 45557:2020
2020DIN EN 45557:2020 General method for assessing the proportion of recycled material content in energy-related products
1970DIN EN 45557 E:2018-11 General method for assessing the proportion of recycled material content in energy-related products