GB/T 32106-2015 in English

《GB/T 32106-2015塑料 在水性培养液中最终厌氧生物分解能力的测定 通过测量生物气体产物的方法》由TC380（全国生物基材料及降解制品标准化技术委员会）归口，主管部门为国家标准化管理委员会。
本标准规定了在水性培养液中测定塑料最终厌氧生物分解能力的一种试验方法。
本标准采用的试验条件不一定为产生最大生物分解率的最佳条件。尽管污泥在工业厌氧消化设备可以有更长的保留时间,但通常情况下为25d~30d,本标准规定试验周期可以至60d。
本方法适用于以下材料:
天然和/或合成聚合物、共聚物及它们的混合物;
含有如增塑剂、颜料等添加物的塑料;
水溶性聚合物;
在试验条件下,不会抑制接种物中微生物活性的材料。抑制作用可应用抑制控制或其他适当方法来测定(见ISO13641)。如果试验材料对接种物有抑制作用,可在较低的试验浓度下使用其他接种物或已预曝置的接种物。

Scope

This standard specifies a test method for determining the final anaerobic biodegradability of plastics in aqueous culture solution. The test conditions used in this standard are not necessarily the optimum conditions for producing the maximum biodegradation rate. Although sludge can have a longer retention time in industrial anaerobic digestion equipment, it is usually 25 days to 30 days, and this standard stipulates that the test period can be up to 60 days. The method is applicable to the following materials: natural and/or synthetic polymers, copolymers and mixtures thereof; plastics containing additives such as plasticizers, pigments, etc.; water-soluble polymers; which do not inhibit the inoculum under the test conditions materials with microbial activity. Inhibition can be determined using inhibition controls or other appropriate methods (see ISO 13641). If the test material inhibits the inoculum, other inoculum or pre-exposed inoculum may be used at a lower test concentration.