ISO 16212:2017给出了通过在有氧培养后计数选择性琼脂培养基上的菌落来计算化妆品中酵母和霉菌的一般准则。 为了确保消费者的产品质量和安全，建议进行适当的微生物风险分析，以确定适用ISO 16212:2017的化妆品类型。被认为具有低微生物风险的产品（见ISO 29621）包括具有低水分活度或极端pH值的产品，含水产品等。 由于在这一应用范围内各种各样的化妆品，这种方法可能不适合于每一个细节上的某些产品（例如某些与水不混溶的产品）。其他方法（例如自动化）可以代替本文提供的测试，只要其等效性已被证明或该方法已被证明是合适的。 可以使用适当的识别测试来识别列举的酵母，例如参考书目中列出的标准中所述的测试。如果需要，枚举的模具可以通过其他适当的方法来识别。

ISO 16212:2017 gives general guidelines for enumeration of yeast and mould present in cosmetics by counting the colonies on selective agar medium after aerobic incubation. In order to ensure product quality and safety for consumers, it is advisable to perform an appropriate microbiological risk analysis to determine the types of cosmetic products to which ISO 16212:2017 is applicable. Products considered to present a low microbiological risk (see ISO 29621) include those with low water activity or extreme pH values, hydro-alcoholic products, etc. Because of the large variety of cosmetic products within this field of application, this method might not be suited to some products in every detail (e.g. certain water-immiscible products). Other methods (e.g. automated) can be substituted for the tests presented here provided that their equivalence has been demonstrated or the method has been otherwise shown to be suitable. Yeast enumerated can be identified using suitable identification tests, for example, tests described in the standards listed in the Bibliography. Mould enumerated can be identified by other appropriate methods, if necessary.