How can you test sun protective materials?

Over-exposure to ultraviolet radiation (UVR) can cause sunburn, skin damage and an increased risk of developing skin cancer. Clothing provides one of the most convenient forms of protection against UVR but not all garments offer adequate sun protection.

Laboratory testing can determine how effective different fabrics are at blocking UVR. ARPANSA has operated a UPF Testing Service since 1990. The UPF Testing Service can test fabrics and other materials to determine the Ultraviolet Protection Factor (UPF) rating. UPF testing is performed according to Australian/New Zealand standard AS/NZS4399.

UPF testing involves exposing a fabric to ultraviolet radiation (UVR) and measuring how much is transmitted through the sample. Different wavelengths of radiation in the UVR spectrum have different effects on human skin and this is taken into consideration when calculating the UPF rating. The higher the UPF rating, the more effective the material is at blocking UVR and the better sun protection it can give the wearer.

The ARPANSA UPF Testing Service can be contacted by phone +61 3 9433 2211, fax +61 3 9432 1835 or e-mail UPF Testing Service. Information is also available from the ARPANSA UPF Testing Service web page.