ISO 14853:2005 塑料 含水系统中塑料材料终极厌氧生物降解度的测定-生物产品的测量方法

标准编号：ISO 14853:2005

中文名称：塑料 含水系统中塑料材料终极厌氧生物降解度的测定-生物产品的测量方法

英文名称：Plastics — Determination of the ultimate anaerobic biodegradation of plastic materials in an aqueous system — Method by measurement of biogas production

发布日期：2005-02

标准范围

ISO 14853:2005规定了测定厌氧微生物对塑料的最终厌氧生物降解性的方法。标准中描述的条件不一定对应于发生最大程度生物降解的最佳条件。该测试要求测试材料暴露于污泥长达60天，这比厌氧消化器中的正常污泥停留时间（25至30天）长，尽管工业场所的消化器可以具有更长的停留时间。该方法适用于以下材料:天然和/或合成聚合物、共聚物或其混合物；含有添加剂如增塑剂、着色剂或其它化合物的塑料材料；水溶性聚合物；在试验条件下不抑制接种物中存在的微生物的材料。

ISO 14853:2005 specifies a method for the determination of the ultimate anaerobic biodegradability of plastics by anaerobic microorganisms. The conditions described in the standard do not necessarily correspond to the optimum conditions for the maximum degree of biodegradation to occur. The test calls for exposure of the test material to sludge for a period of up to 60 days, which is longer than the normal sludge retention time (25 to 30 days) in anaerobic digesters, though digesters at industrial sites can have much longer retention times.The method applies to the following materials:

• natural and/or synthetic polymers, copolymers or mixtures thereof;
• plastic materials which contain additives such as plasticizers, colorants or other compounds;
• water-soluble polymers;
• materials which, under the test conditions, do not inhibit the microorganisms present in the inoculum.

标准预览图