This International Standard gives general guidelines for enumeration and detection of mesophilic aerobic bacteria present in cosmetics, by counting the colonies on agar medium after aerobic incubation, or by checking the absence of bacterial growth after enrichment. Because of the large variety of cosmetic products within this field of application, this method may not be appropriate for some products in every detail (e.g. certain water immiscible products). Other methods (e.g. automated) may be substituted for the tests presented here provided that their equivalence has been demonstrated or the method has been otherwise validated. If needed, microorganisms enumerated or detected may be identified using suitable identification tests described in the standards given in the Bibliography. In order to ensure product quality and safety for consumers, it is advisable to perform an appropriate microbiological risk analysis, so as to determine the types of cosmetic products to which this International Standard is applicable. Products considered to present a low microbiological risk include those with low water activity, hydro-alcoholic products, extreme pH values, etc.
DIN EN ISO 21149-2009由德国标准化学会 DE-DIN 发布于 2009-10-01。
DIN EN ISO 21149-2009 在中国标准分类中归属于: Y42 化妆品,在国际标准分类中归属于: 07.100.99 有关微生物学的其他标准,71.100.70 美容品、化妆品。
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