019 The COLIPA Standard for solar simulators failed to standardize sunscreen SPFS

R. Sayre
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Abstract

The COLIPA Standard for solar simulators was developed to insure that SPF tested in different laboratories was not different because of the solar simulator used. Indeed for products with lower SPFs 2-10, the solar simulator standard reasonably assures similar SPFs when tested in different laboratories. For products with SPFs greater than 15, the SPF for the same product could be tested at 15 in one laboratory but as an SPF 100 in another. Differences in SPF due to solar simulator filtration will occur only for sunscreen products that exhibit absorption like cut-off filters. Products which generally absorb all UV wavelengths equally will not exhibit differences in SPF due to solar simulator filtration. In addition because of different amounts of UVA allowed within the COLIPA standard, the actual response for a given exposure may in one laboratory produce persistent pigment darkening and in another a simple sunburn. Ways to correct this flaw will be examined.
019太阳模拟器的COLIPA标准未能标准化防晒霜的spf值
制定COLIPA太阳模拟器标准是为了确保在不同实验室测试的SPF不会因使用的太阳模拟器而不同。事实上,对于spf值较低的产品,太阳模拟器标准合理地保证了在不同实验室测试时类似的spf值。对于SPF值大于15的产品,同一产品可能在一个实验室测试SPF值为15,而在另一个实验室测试SPF值为100。由于太阳模拟器过滤而导致的SPF差异只会发生在具有截止过滤器等吸收特性的防晒霜产品上。通常吸收所有紫外线波长相等的产品不会因太阳模拟器过滤而出现SPF差异。此外,由于在COLIPA标准内允许的UVA量不同,在一个实验室中,特定暴露的实际反应可能会产生持久的色素变黑,而在另一个实验室中则会产生简单的晒伤。将研究纠正这一缺陷的方法。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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