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Piz Buin (brand) : ウィキペディア英語版 | Piz Buin (brand) Piz Buin is the trading name of a sunscreen firm, whose headquarters is in Zug, Switzerland. It is named after Piz Buin, a 3312 metre-high mountain in the Eastern Alps. The Piz Buin brand traces its origin back to the inspiration of Franz Greiter, a young chemistry student, who suffered severe sunburn while climbing Piz Buin in 1938. He introduced his first sun protection product in 1946. In 1974, Greiter adapted earlier calculations from Friedrich Ellinger and Rudolf Schulze and introduced the "sun protection factor" (SPF), which has become a worldwide standard for measuring the effectiveness of sunscreen. ==References==
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Piz Buin (brand)」の詳細全文を読む
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