标准摘要
[中文适用范围]： 本文件规定了测定塑料材料需氧生物降解程度和速率的实验室测试方法。 塑料材料的生物降解性是通过在实验室条件下暴露于从沿海地区采样的海水时在封闭的呼吸计中测量需氧量来确定的。 本文件中描述的条件可能并不总是对应于最大程度生物降解的最佳条件，但是该测试方法旨在指示塑料材料的潜在生物降解性。 注：本文件涉及塑料材料，但也可用于其他材料。 [外文原描述]： This document specifies a laboratory test method for determining the degree and rate of the aerobic biodegradation level of plastic materials. Biodegradation of plastic materials is determined by measuring the oxygen demand in a closed respirometer when exposed to seawater sampled from coastal areas under laboratory conditions. The conditions described in this document might not always correspond to the optimum conditions for the maximum degree of biodegradation, however this test method is designed to give an indication of the potential biodegradability of plastic materials. NOTE This document addresses plastic materials but can also be used for other materials.
英文名称Plastics — Determination of the aerobic biodegradation of plastic materials exposed to seawater — Part 2: Method by measuring the oxygen demand in closed respirometer