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<p>This document specifies a method of evaluating the ultimate anaerobic biodegradability of plastic materials in a controlled anaerobic slurry digestion system with a solids concentration not exceeding 15 %, which is often found for the treatment of sewage sludge, livestock faeces or garbage. The test method is designed to yield a percentage and rate of conversion of the organic carbon in the test materials to carbon dioxide and methane produced as biogas.</p>
<p>The method applies to the following materials, provided they have a known carbon content:</p>
<p>— natural and/or synthetic polymers, copolymers or mixtures;</p>
<p>— plastic materials that contain additives such as plasticizers, colorants, or other compounds;</p>
<p>— water-soluble polymers.</p>
<p>It does not apply to materials which exhibit inhibitory effects on the test microorganisms at the concentration chosen for the test.</p>
<p>NOTE Inhibitory effects can be determined by an inhibition test (e.g. ISO 13641-1 or ISO 13641-2).</p>
Reģistrācijas numurs (WIID)
74992
Darbības sfēra
<p>This document specifies a method of evaluating the ultimate anaerobic biodegradability of plastic materials in a controlled anaerobic slurry digestion system with a solids concentration not exceeding 15 %, which is often found for the treatment of sewage sludge, livestock faeces or garbage. The test method is designed to yield a percentage and rate of conversion of the organic carbon in the test materials to carbon dioxide and methane produced as biogas.</p>
<p>The method applies to the following materials, provided they have a known carbon content:</p>
<p>— natural and/or synthetic polymers, copolymers or mixtures;</p>
<p>— plastic materials that contain additives such as plasticizers, colorants, or other compounds;</p>
<p>— water-soluble polymers.</p>
<p>It does not apply to materials which exhibit inhibitory effects on the test microorganisms at the concentration chosen for the test.</p>
<p>NOTE Inhibitory effects can be determined by an inhibition test (e.g. ISO 13641-1 or ISO 13641-2).</p>
