fjrigjwwe9r3edt_lecture:conts ڿܼ ũ IJ غ ʼǰ Ǿϴ. ڿܼ ũ ϰ ڿܼ ġ, ϴ, ϴ, + ǥô ־ ؾ ͵ . ڿܼ ؼ ˾ ô. .
ũ ڿܼ-B = SPF
SPF = Sun Protection Factor
SPF Ӿ, , ȭ Ű ڿܼ-B(UV-B) Դϴ. ڷ ǥϰ ִµ, ڿܼ-B Ǿ ð( 20) 踸ŭ Ųٴ ǹ̷ Դϴ.
ex) SPF 15 = 20 15 = 300 : ڿܼ 300 5ð
SPF 15 δ ð ȿ Ѵٰ մϴ. ǵġ ʰ ۰ Ǵ 찡 Դϴ. ʹ (SPF 30 ʰ) ÿ ȭм ϹǷ Ǻڱ Ŀ. SPF 15 2ð ߶ִ ڿܼ ܿ ȿԴϴ.
¾ ִ غ SPF 30 ̻ ߶ ִ ͵ ϴ.
ũ ڿܼ-A = PA
PA = Protection of A
PA Ǻź , ȭ , Ǻθ ġ ڿܼ-A(UV-A) Դϴ. ǥ +, ++, +++ , ڿܼ ϴ ȿ ϴ.
ũ
Ų, μ ٸ ũ ٸϴ. ũ ⸧ ȴٸ ǰ ̿ϴ ϴ. 2ð ٽ ߶ ־ ȿ ֽϴ. |