Determination of the UV protection factor (UPF) according to UV STANDARD 801 is based on maximum solar spectral irradiance and the solar spectrum in Melbourne/Australia on January 1st of a year (height of Australian summer) and the most sensitive skin type for the wearer.
Depending on the article group, the UPF value of the UV protective material is determined as follows:
Clothing
- in new condition
- in stretched state
- in wet state
- after abrasion
- after washing or cleaning