Sandbox:Sara: Difference between revisions

Revision as of 17:43, 1 August 2019

Measurement of UV protection afforded by sunscreens and clothing
Measurement system	SPF (Sun protection factor)	UVA‐PF (UVA‐protection factor)
Definition
Developed for	Sunscreens	Sunscreens
Global acceptance	International	United States only
UV wavelengths protected	UVB	UVA
Examples	SPF 2 protects against 50% of UVB SPF 8 protects against 88% of UVB SPF 15 protects against 93% of UVB SPF 30 protects against 97% of UVB SPF 50 protects against 98% of UVB	UVA‐PF1 protects against 20–39% of UVA UVA‐PF2 protects against 40–69% of UVA UVA‐PF3 protects against 70–95% of UVA UVA‐PF4 protects against >95% of UVA

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]; Associate Editor(s)-in-Chief: Sara Mohsin, M.D.[2]

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 !'''UPF (Ultraviolet protection factor)'''
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-|Definition
+|'''Definition'''
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 |
 |
 |-
-|Developed for
+|'''Developed for'''
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 * Sunscreens
@@ Line 21: / Line 21: @@
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 |-
-|Global acceptance
+|'''Global acceptance'''
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 * International
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+* United States only
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 |-
-|UV wavelengths protected
+|'''UV wavelengths protected'''
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 * UVB
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+* UVA
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 |-
-|Examples
+|'''Examples'''
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-* SPF 2 protects against 50% UVB
+* SPF 2 protects against 50% of UVB
-* SPF 8 protects against 88% UVB
+* SPF 8 protects against 88% of UVB
-* SPF 15 protects against  93% UVB
+* SPF 15 protects against  93% of UVB
-* SPF 30 protects against 97% UVB
+* SPF 30 protects against 97% of UVB
-* SPF 50 protects against 98% UVB
+* SPF 50 protects against 98% of UVB
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+* UVA‐PF1 protects against 20–39% of UVA
+* UVA‐PF2 protects against 40–69% of UVA
+* UVA‐PF3 protects against 70–95% of UVA
+* UVA‐PF4 protects against >95% of UVA
 |
 |}