October 16, 2009
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July 20, 2009
親愛的,我把水變軟了!(中)
補充一下,根據某篇已經找不到來源的報導:
台灣的水硬度單位為mg/L(ppm),跟美國一樣,是每公升中將鈣鎂等元素總合換算為碳酸鈣(CaCO3)的重量,所計算出的數值。0~60mg/L為軟水,61~120mg/L為中硬水,121~180mg/L為硬水,180mg/L以上為超硬水。(根據wikipedia,跟法國用的單位°f為1/10的數值差距。)
July 15, 2009
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Sealed (Nov 21)







