BS EN ISO 24443:2012
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
View Superseded by
Determination of sunscreen UVA photoprotection in vitro
Hardcopy , PDF
07-01-2022
English
30-06-2012
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Foreword
1 Scope
2 Terms and definitions
3 Principle
4 Apparatus
5 Test method
6 Procedure using the spreadsheet in this International
Standard
7 Reference sunscreen formula S2
8 Test report
Annex A (normative) - Calibration of UV spectrophotometer
and plate transmission test
Annex B (normative) - Radiometer calibration to
spectroradiometric irradiance procedure
Annex C (normative) - Computation values: PPD and erythema
action spectra and UVA and UV-SSR spectral irradiances
Annex D (normative) - PMMA test plate surface specifications
Annex E (normative) - UVA reference sunscreen S2
Annex F (informative) - Statistical calculations
Bibliography
Describes an in vitro procedure to characterize the UVA protection of sunscreen products.
| Committee |
CW/217
|
| DocumentType |
Standard
|
| Pages |
36
|
| PublisherName |
British Standards Institution
|
| Status |
Superseded
|
| SupersededBy |
This International Standard 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 a 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 (UVAPF) [correlating with in vivo UVAPF 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 in vivo SPF results for scaling the UV absorbance curve.
This International Standard is not applicable to powder products such as pressed powder and loose powder products.
| Standards | Relationship |
| ISO 24443:2012 | Identical |
| EN ISO 24443:2012 | Identical |
| ISO 17166:1999 | Erythema reference action spectrum and standard erythema dose |
| ISO/IEC 17025:2005 | General requirements for the competence of testing and calibration laboratories |
| DIN 67501:2010-07 | EXPERIMENTAL IN VIVO EVALUATION OF THE PROTECTION FROM ERYTHEMA OF EXTERNAL SUNSCREEN PRODUCTS FOR THE HUMAN SKIN |
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