UPF definitions

Upf

1) Utility possibility frontier
Found on https://www.crosswordclues.com/clue/upf

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UPF

Utility possibility frontier
Found on http://www-personal.umich.edu/~alandear/glossary/u.html

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UPF

Ultra-violet Protection Factor
Found on http://www.herroom.com/glossary-fabric-womens.aspx

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UPF

ultra-violet protection factor.
Found on http://www.textilesintelligence.com/glo/index.cfm?SECTION=U

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