游离二氧化碳
- 网络free carbon dioxide
游离二氧化碳-
根据GB8537-2008《饮用天然矿泉水》界限指标要求锂、锶、锌、碘化物、偏硅酸、硒、游离二氧化碳、溶解性总固体，应有一项（或一项以上）指标符合表1的规定。
According to GB / T8537-2008 " drinking natural mineral water ", at least one of the indicators ( lithium , strontium , zinc , iodide , metasilicic acid , selenium , free carbon dioxide , total dissolved solids ) should be in line with the standards .
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测定游离二氧化碳要用双样测定并严格控制滴定终点；
Double exponent is applied to determine free state carbon dioxide and the titration terminal point should be controlled strictly .