塑料.在高固相厌氧消化条件下测定最终厌氧生物降解作用.释放的沼气分析法

[中文适用范围]： 本国际标准规定了一种在高固体厌氧消化条件下通过测量试验结束时产生的沼气来评价基于有机化合物的塑料的最终厌氧生物降解性的方法。 该方法旨在模拟有机化合物的典型厌氧消化条件。 混合城市固体废物的比例。 在实验室测试中，将测试材料暴露于来自仅对预处理的家庭废物进行厌氧消化的产甲烷接种物。 厌氧分解发生在高固体含量（总固体含量超过 20%）和静态非混合条件下。 该测试方法旨在得出测试材料中的碳百分比及其转化为释放的二氧化碳和甲烷的速率。 （沼气）。 本国际标准中描述的条件可能并不总是符合发生最大程度生物降解的最佳条件。 [外文原描述]： ISO 15985:2014 specifies a method for the evaluation of the ultimate anaerobic biodegradability of plastics based on organic compounds under high-solids anaerobic-digestion conditions by measurement of evolved biogas at the end of the test. This method is designed to simulate typical anaerobic digestion conditions for the organic fraction of mixed municipal solid waste. The test material is exposed in a laboratory test to a methanogenic inoculum derived from anaerobic digesters operating only on pretreated household waste. The anaerobic decomposition takes place under high-solids (more than 20 % total solids) and static non-mixed conditions. The test method is designed to yield the percentage of carbon in the test material and its rate of conversion to evolved carbon dioxide and methane (biogas).