DIN EN ISO 13833:2013 固定源排放. 生物量 (生命必需的) 和化石比率测定. 放射性碳取样和测定 (ISO 13833-2013); 德文版本EN ISO 13833-2013
Stationary source emissions - Determination of the ratio of biomass (biogenic) and fossil-derived carbon dioxide - Radiocarbon sampling and determination (ISO 13833:2013); German version EN ISO 13833:2013