According to the OECD definition, biodegradability is: “the alteration of the chemical structure of a substance resulting from a biological action and resulting in the loss of specific properties of that substance”.
Biodegradation in the presence of oxygen (aerobiosis) is to be distinguished from degradation in the absence of oxygen (anaerobiosis) by the nature of the degrading microorganisms and degradation products.
Biodegradability is one of the criteria for the EU Ecolabel. The requirements for the assessment and verification of this criterion are described on ANNEX of the “COMMISSION DECISION of 9 December 2014 establishing the ecological criteria for the award of the EU Ecolabel for rinse-off cosmetic products”. [notified under number C (2014) 9302 (2014/893 / EU)] “.
The theoretical evaluation of Biodegradability is based on the calculation of the following values:
– ONBDa: Total content of the product of organic substances used in the composition of the product which are not biodegradable under aerobic conditions (not easily biodegradable).
– ONBDan: Total content of the product of organic substances used in the composition of the product which are not biodegradable under anaerobic conditions.
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