<p>ISO 13975:2012 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>
<ul>
<li>natural and/or synthetic polymers, copolymers or mixtures;</li>
<li>plastic materials that contain additives such as plasticizers, colorants, or other compounds;</li>
<li>water-soluble polymers.</li>
</ul>
<p>It does not apply to materials which exhibit inhibitory effects on the test microorganisms at the concentration chosen for the test.</p>
Registration number (WIID)
54396
Scope
<p>ISO 13975:2012 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>
<ul>
<li>natural and/or synthetic polymers, copolymers or mixtures;</li>
<li>plastic materials that contain additives such as plasticizers, colorants, or other compounds;</li>
<li>water-soluble polymers.</li>
</ul>
<p>It does not apply to materials which exhibit inhibitory effects on the test microorganisms at the concentration chosen for the test.</p>
