ISO 18191:2026
Current
Water quality — Determination of pHT in seawater — Method using the indicator dye m-cresol purple
Hardcopy , PDF
English
07-07-2026
This document specifies a spectrophotometric determination of the pHT of seawater on the total hydrogen ion concentration pH scale. The total hydrogen ion concentration, [H+]T, is expressed as moles per kilogram of seawater. The method is suitable for assaying oceanic levels ofpHT from7,4 to8,2 for normal seawater of practical salinity ranging from 20 to 40.
| Committee |
ISO/TC 147/SC 2
|
| DocumentType |
Standard
|
| Pages |
13
|
| PublisherName |
International Organization for Standardization
|
| Status |
Current
|
| Supersedes |
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