UV Penetration & Protection Test System, is used for testing UV protection properties of textiles. Fabric samples are measured in a double beam spectrophotometer with an integrated sphere. UV Penetration & Protection Test System complies with AATCC 183, BS 7914, AS/NZS 4399, etc.
https://www.testextextile.com/product/uv-penetration-protection-test-system-tf131