2020DIN EN ISO 21945:2020-06 Solid biofuels - Simplified sampling method for small scale applications (ISO 21945:2020); German version EN ISO 21945:2020
2020DIN EN ISO 21945:2020 Solid biofuels - Simplified sampling method for small scale applications (ISO 21945:2020)
1970DIN EN ISO 21945 E:2018-09 Simplified sampling method for small-scale applications of solid biofuels (draft)