ДСТУ EN ISO 24443:2022 Косметика. Визначення фотозахисту сонцезахисного крему UVA in vitro (EN ISO 24443:2021, IDT; ISO 24443:2021, IDT)

ДСТУ EN ISO 24443:2022
(EN ISO 24443:2021, IDT; ISO 24443:2021, IDT)

Косметика. Визначення фотозахисту сонцезахисного крему UVA in vitro

 
   
 
 
     
Не є офіційним виданням.
Офіційне видання розповсюджує національний орган стандартизації
(ДП «УкрНДНЦ» http://uas.gov.ua)

Contents

Foreword

Introduction

1 Scope

2 Normative references

3 Terms, definitions, symbols and abbreviated terms

3.1 Terms and definitions

3.2 Symbols and abbreviated terms

4 Principle

5 Apparatus

5.1 Spectrophotometer specifications

5.2 Calibration of the spectrophotometer

5.3 Calibration of the UV exposure source

5.4 Monitoring of the UV exposure source

5.5 Calibration of the UVA radiometer used to monitor the test sample irradiation

5.6 Substrate/plate

6 Test method

6.1 Outline of the test procedure

6.2 Equipment calibration and validation of test plates

6.3 Absorption measurements through the plate

6.4 Sample application

6.5 Absorbance measurements of the product-treated plate

6.6 Number of determinations

6.7 Determination of initial calculated SPF (SPF in vitro,0), "C" value, initial UVA-PF (UVA-PF0), and UV exposure dose

6.8 UV exposure of sample plates

6.9 Calculation of UVA-PF of plates after UV exposure of the sample

6.10 Calculation of critical wavelength of plates after UV exposure of the sample

7 Procedure using the spreadsheet in this document

8 Product reference sunscreen

8.1 Formula S2

8.2 Standard P8

9 Test report

Annex A (normative) Calibration of 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 substrate plate surface specifications

Annex E (normative) Product reference sunscreen formulations

Annex F (informative) Statistical calculations

Annex G (informative) Definition and examples of valid results/Factor "C"

Bibliography