随着塑料制品的广泛使用，塑料污染已成为全球环境问题的重要组成部分。为了解决这一问题，许多国家和地区已经开始采取措施限制塑料制品的使用。然而，塑料制品的替代品并不总是可行的，因此需要寻找一种可持续的解决方案。其中之一就是通过生物降解来减少塑料污染。

ISO 13975:2019提供了一种测定塑料材料在淤泥消化系统中最终厌氧生物降解能力的方法。该方法通过测量生物气体产生量来评估塑料材料的降解能力。在测试过程中，将塑料样品与淤泥混合，然后在控制的条件下进行消化。在消化过程中，淤泥中的微生物会分解塑料样品并产生生物气体。通过测量生物气体的产生量，可以评估塑料样品的降解能力。

该标准适用于所有类型的塑料材料，包括聚合物、共聚物、共混物和复合材料。测试结果可以用于评估塑料材料的环境可持续性，并为塑料制品的设计和生产提供指导。

相关标准
ISO 14855-1:2012 Plastics -- Determination of the ultimate aerobic biodegradability of plastic materials under controlled composting conditions -- Method by analysis of evolved carbon dioxide -- Part 1: General method
ISO 14855-2:2018 Plastics -- Determination of the ultimate aerobic biodegradability of plastic materials under controlled composting conditions -- Method by analysis of evolved carbon dioxide -- Part 2: Gravimetric measurement of carbon dioxide evolved in a laboratory-scale test
ISO 17556:2012 Plastics -- Determination of the ultimate aerobic biodegradability of plastic materials in soil by measuring the oxygen demand in a respirometer or the amount of carbon dioxide evolved -- Part 1: General method
ISO 17556:2012 Plastics -- Determination of the ultimate aerobic biodegradability of plastic materials in soil by measuring the oxygen demand in a respirometer or the amount of carbon dioxide evolved -- Part 2: Carbon dioxide measurement
ISO 20200:2018 Plastics -- Determination of the degree of disintegration of plastic materials under simulated composting conditions in a laboratory-scale test -- Method by analysis of the evolved carbon dioxide