DIN EN ISO 22526-2 E:2021-07 塑料 生物基塑料的碳足迹和环境足迹 第2部分:材料碳足迹、从空气中去除并纳入聚合物分子中的 CO2 量(草案)
Plastics Carbon and environmental footprint of bio-based plastics Part 2: Material carbon footprint, amount of CO2 removed from the air and incorporated into polymer molecules (draft)