A specimen of the textile (coloured textiles which change in colour on exposure to light but which virtually return to their original shade when stored in the dark) is exposed to light of high intensity for a time much shorter than that necessary to cause a permanent change. The change in colour of the specimen is assessed immediately after exposure, using the grey scale. The specimen is then stored in the dark and assessed again.

Test Requirement 测试要求：

Detection and assesment of photochromism 光致变色 - Xenon arc lamp of correlated colour temperature 5500K to 6500K 需要经过两次暴晒测试以及汽蒸过程

Sample Size 样品数量 / 送样规格: 50cm x 50cm x 2pcs
Lead Time / TAT (Turn Around Time) 测试周期: 常规服务 Regular service 9 working days

Report Summary 报告摘要: