ϴĻҪ
      
            
            	ˮˮ|
ϴ섩ʹ^жcˮˮ|QʹîaƷͺͮaƷʹúЧھƵϴ·ϴNrͬϴ섩Ǟ_AڵϴЧ˽ˮǘOҪ
ˮ|
ˮиNV|ĝȱʾ106ȺppmÿӁж٣gpg
——ppmӢ——gpg
ɷNӋQǣ17.1ppm=1gpg
ˮӲ
ˮӲȱʾˮ}VxӺĴС
@ɷN}ʽڵͨĵV|QˮӲγˮҪԭˮ|һ^ӲʹϴЧ׃ϴ·ϴ^ͬˮӲȕֱӰȥ۹Чδ̎Ӳˮʹɫl(f)ҡ
ϴ·ʹõˮˮ|ӲȑС68ppm
Ϻ^(q)ԁˮһ≥100ppm
ϴ·ˮӲȳ^һĘ˜ʕrȡӲˮMxӽQܛ̎ϴrˮ̎턩ķ
ˮӲȵȼʾ飺
0~4gpg(0~68ppm)--------------------ܛˮ
4~8gpg(68~137ppm)-----------------еӲˮ
8~12gpg(137~205ppm)--------------------Ӳˮ
12~16gpg(205~274ppm)--------------------ӲȺܴˮ
ˮFxӺ
ˮеĸFoϴ·S}eʹò׃S׃һϴ·Ҫˮ|кFС01ppmˮеF|01ppnrF|ϴrڲ@ٌƯ͕pwSһ̎ķв1%40~60̎펧FPIJ5~8^ˡע⣺ò̎IJص^ˮϴtںɻC^ͬӕp