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  • BSI
    20/30373979 DC BS EN ISO 24443. Determination of sunscreen UVA photoprotection in vitro
    Edition: 2020
    $44.66
    / user per year

Description of 20/30373979 DC 2020

This document specifies an in vitro procedure to characterize the UVA protection of sunscreen products. Specifications are proposed 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. Results from this measurement procedure can be used for other computations, as required by local regulatory authorities. 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.



Standard Number20/30373979 DC
TitleBS EN ISO 24443. Determination of sunscreen UVA photoprotection in vitro
StatusDefinitive
Publication Date2020-05-05
Identical National Standard OfISO/DIS 24443
DescriptorsRadiation measurement, Product tests, Sun-tan lotions, Biological analysis and testing, Skin protection, Atmospheric radiation, Ultraviolet radiation, Cosmetics, Protective creams, Skin creams
ICS71.100.70 Cosmetics. Toiletries
CommitteeCW/217
PublisherBSI
Pages42

About BSI

BSI Group, also known as the British Standards Institution is the national standards body of the United Kingdom. BSI produces technical standards on a wide range of products and services and also supplies certification and standards-related services to businesses.
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