1. 1) ISO, International Standard ISO24444 Cosmetics — Sun protection test methods — In vivo determination of the sun protection factor (SPF), ISO, 2010
2. 2) ISO, International Standard ISO24442 Cosmetics — Sun protection test methods — In vivo determination of sunscreen UVA protection, ISO, 2011
3. 3) ISO, International Standard ISO24443 Determination of sunscreen UVA photoprotection in vitro, ISO, 2012
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5. 8) International Agency for Research on Cancer, IARC Monographs on the Evaluation of Carcinogenic Risks to Humans, Vol. 55, Solar and Ultra Violet Radiation, IARC, 1992