标准摘要
[中文适用范围]： 本文件规定了表征防晒产品 UVA 防护特性的体外程序。 给出的规格能够以可重复的方式确定 UVA 防护的光谱吸收特性。 为了确定相关的 UVA 防护参数，我们创建了该方法来提供 UV 光谱吸光度曲线，从中可以进行大量计算和评估。 其中包括计算 UVA 防护因子 (UVA-PF) [与持久色素变暗 (PPD) 测试程序中的体内 UVA-PF 相关]、临界波长和 UVA 吸光度比例。 这些计算是可选的，并且与当地防晒产品标签要求相关。 该方法依赖于使用静态体内 SPF 结果来缩放紫外线吸收曲线。 本文件不适用于粉饼、散粉等粉状产品。 [外文原描述]： This document specifies an in vitro procedure to characterize the UVA protection of sunscreen products. Specifications are given to enable determination of the spectral absorbance characteristics of UVA protection in a reproducible manner. In order to determine relevant UVA protection parameters, the method has been created to provide an UV spectral absorbance curve from which a number of calculations and evaluations can be undertaken. These include calculation of the Ultraviolet-A protection factor (UVA-PF) [correlating with in vivo UVA-PF from the persistent pigment darkening (PPD) testing procedure], critical wavelength and UVA absorbance proportionality. These computations are optional and relate to local sunscreen product labelling requirements. This method relies on the use of static in vivo SPF results for scaling the UV absorbance curve. This document is not applicable to powder products such as pressed powder and loose powder products.
英文名称Cosmetics — Determination of sunscreen UVA photoprotection in vitro