BSI 19/30344574 DC:2019 Edition
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BS ISO 18861. Cosmetics. Sun protection test methods. Water resistance. Percentage of water resistance
Published By | Publication Date | Number of Pages |
BSI | 2019 | 18 |
This document intends to evaluate the Water Resistance Retention percentage, by comparing the Sun Protection Factor (SPF) before water immersion (hereafter referred to as the “static” SPF) and after a fixed period of water immersion (hereafter referred to as the “wet” SPF).