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Determination of the ultimate aerobic biodegradability of plastic materials in an aqueous medium - Method by measuring the oxygen demand in a closed respirometer (ISO 14851:1999)
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Superseded date: 17-04-2019
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Published date: 21-07-2004
Publisher: Comite Europeen de Normalisation
ForewordIntroduction1 Scope2 Normative references3 Definitions4 Principle5 Test environment6 Reagents7 Apparatus8 Procedure9 Calculation and expression of results10 Validity of results11 Test reportAnnex A (informative) Theoretical oxygen demand (ThOD)Annex B (informative) Correction of BOD values for interference by nitrificationAnnex C (informative) Principle of a closed manometric respirometerAnnex D (informative) Two-phase closed-bottle version of the respirometric testAnnex E (informative) Example of the determination of a carbon balanceAnnex F (informative) Example of a determination of the amount of water-insoluble polymer remaining at the end of a biodegradation test and the molecular mass of the polymerAnnex G (informative) BibliographyAnnex ZA (normative) Normative references to international publications with their relevant European publications
Specifies a method, by measuring the oxygen demand in a closed respirometer, for the determination of the degree of aerobic biodegradability of plastic materials, including those containing formulation additives.
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