BS ISO 18191:2015规定了海水pH值的分光光度测定方法 总氢离子浓度pH标度采用指示剂染料甲酚紫。总氢 离子浓度[H+]t表示为每千克海水的摩尔数。该方法适用于工业生产 测定实际盐度在20到40之间的正常海水的pHt7,4到8,2的海洋水平。交叉引用:ISO 5667-1ISO 10523ISO 22719购买本文件时提供的所有现行修订版均包含在购买本文件中。

BS ISO 18191:2015 specifies a spectrophotometric determination of the pHtof sea water on the total hydrogen ion concentration pH scale using the indicator dyem-cresol purple. The total hydrogen ion concentration, [H+]t, is expressed as moles per kilogram of sea water. The method is suitable for assaying oceanic levels of pHt7,4 to 8,2 for normal sea water of practical salinity ranging from 20 to 40.Cross References:ISO 5667-1ISO 10523ISO 22719All current amendments available at time of purchase are included with the purchase of this document.