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<p class="MsoBodyText"><span lang="EN-GB">This document describes a laboratory test method to determine the aerobic biodegradation of plastic materials exposed to seawater using accelerated conditions. </span></p>
<p class="MsoBodyText"><span lang="EN-GB">Furthermore, this document describes the general requirements of the apparatus and the procedures for using this test method. The biodegradation is determined by measuring the oxygen demand in a closed respirometer or by measuring the CO<sub>2</sub> evolved during mineralization of the plastic materials by microorganisms in the seawater.</span></p>
<p class="MsoBodyText"><span lang="EN-GB">This test method is designed to give an early indication of the potential biodegradability of plastic </span><span lang="EN-GB">materials</span><span lang="EN-GB"> in marine environment.</span></p>
<p class="MsoBodyText"><span lang="EN-GB" style="mso-fareast-language: JA;">In addition, for the purpose of promoting the development of biodegradable plastics, this document also provides a method for measuring the biomass components produced by metabolizing the test resin before it is completely mineralized to </span><span lang="EN-GB">CO<sub>2</sub></span><span lang="EN-GB" style="mso-fareast-language: JA;">, that enables to evaluate the potential biodegradability considered by carbon flow by the sum of the degree of biodegradation based on </span><span style="mso-bookmark: _Hlk137563048;"><span lang="EN-GB">O<sub>2</sub></span></span><span style="mso-bookmark: _Hlk137563048;"><span lang="EN-GB" style="mso-fareast-language: JA;"> and/or </span><span lang="EN-GB">CO<sub>2</sub></span></span><span style="mso-bookmark: _Hlk137563048;"><span lang="EN-GB" style="mso-fareast-language: JA;"> analysis and the degree of conversion to biomass in much shorter period of time than full mineralization.</span></span></p>
<p class="MsoBodyText"><span lang="EN-GB">This method is not suitable to assess the degree of disintegration of plastic materials caused by abiotic factors like heat or UV radiation. </span></p>
Reģistrācijas numurs (WIID)
85456
Darbības sfēra
<p class="MsoBodyText"><span lang="EN-GB">This document describes a laboratory test method to determine the aerobic biodegradation of plastic materials exposed to seawater using accelerated conditions. </span></p>
<p class="MsoBodyText"><span lang="EN-GB">Furthermore, this document describes the general requirements of the apparatus and the procedures for using this test method. The biodegradation is determined by measuring the oxygen demand in a closed respirometer or by measuring the CO<sub>2</sub> evolved during mineralization of the plastic materials by microorganisms in the seawater.</span></p>
<p class="MsoBodyText"><span lang="EN-GB">This test method is designed to give an early indication of the potential biodegradability of plastic </span><span lang="EN-GB">materials</span><span lang="EN-GB"> in marine environment.</span></p>
<p class="MsoBodyText"><span lang="EN-GB" style="mso-fareast-language: JA;">In addition, for the purpose of promoting the development of biodegradable plastics, this document also provides a method for measuring the biomass components produced by metabolizing the test resin before it is completely mineralized to </span><span lang="EN-GB">CO<sub>2</sub></span><span lang="EN-GB" style="mso-fareast-language: JA;">, that enables to evaluate the potential biodegradability considered by carbon flow by the sum of the degree of biodegradation based on </span><span style="mso-bookmark: _Hlk137563048;"><span lang="EN-GB">O<sub>2</sub></span></span><span style="mso-bookmark: _Hlk137563048;"><span lang="EN-GB" style="mso-fareast-language: JA;"> and/or </span><span lang="EN-GB">CO<sub>2</sub></span></span><span style="mso-bookmark: _Hlk137563048;"><span lang="EN-GB" style="mso-fareast-language: JA;"> analysis and the degree of conversion to biomass in much shorter period of time than full mineralization.</span></span></p>
<p class="MsoBodyText"><span lang="EN-GB">This method is not suitable to assess the degree of disintegration of plastic materials caused by abiotic factors like heat or UV radiation. </span></p>
