Kosmetika - Metody zkoušení ochranného slunečního faktoru - Stanovení ochranného slunečního faktoru (SPF) in vitro (Norma k přímému použití jako ČSN).
NORMA vydána dne 1.6.2025
Designation standards: ČSN EN ISO 23675
Classification mark: 681513
Catalog number: 521207
Publication date standards: 1.6.2025
Approximate weight : 180 g (0.40 lbs)
Country: Czech technical standard
Kategorie: Technické normy ČSN
This document specifies a method for the in vitro determination of sun protection factor (SPF). This method is applicable to sunscreen products in form of an emulsion or alcoholic one-phase formulation, excluding in form of a loose or compressed powder or stick. Specifications are given to enable determination of the spectral absorbance characteristics of SPF protection in a reproducible manner.
Use of this method is strictly for the determination of a static sun protection factor. It is not applicable for the determination of water-resistance properties of a sun protection product