GB/T 41638.2-2023
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 由空气中并入到聚合物分子中CO2的量(质量)
Carbon and environmental footprints of plastics Bio-based plastics Part 2: Carbon footprint of materials Amount (mass) of CO2 incorporated into polymer molecules from the air
GBT41638.2-2023, GB41638.2-2023