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ISO 18191:2015

Water quality - Determination of pHt in sea water - Method using the indicator dye m-cresol purple
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ISO 18191:2015

Water quality - Determination of pHt in sea water - Method using the indicator dye m-cresol purple

PUBLISH DATE 2015
ISO 18191:2015

ISO 18191:2015 specifies a spectrophotometric determination of the pHt of sea water on the total hydrogen ion concentration pH scale using the indicator dye m-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 pHt 7,4 to 8,2 for normal sea water of practical salinity ranging from 20 to 40.

SDO ISO: International Organization for Standardization
Document Number ISO 18191
Publication Date Sept. 1, 2015
Language en - English
Page Count
Revision Level
Supercedes
Committee ISO/TC 147/SC 2
Publish Date Document Id Type View
Sept. 1, 2015 ISO 18191:2015 Revision