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Hlavní stránka>ČSN EN ISO 24443 - Kosmetika - Stanovení ochranného slunečního faktoru UVA in vitro
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Vydáno: 01.06.2022
ČSN EN ISO 24443 - Kosmetika - Stanovení ochranného slunečního faktoru UVA in vitro

ČSN EN ISO 24443

Kosmetika - Stanovení ochranného slunečního faktoru UVA in vitro

Formát
Dostupnost
Cena a měna
Anglicky Tisk
Skladem
495 Kč
Označení normy:ČSN EN ISO 24443
Třídící znak:681508
Počet stran:52
Vydáno:01.06.2022
Harmonizace:Norma není harmonizována
Katalogové číslo:514452
Popis

ČSN EN ISO 24443

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.