ISO 18191:2026
ISO 18191:2026 Water quality — Determination of pHT in seawater — Method using the indicator dye m-cresol purple
CDN $192.00
This publication was last reviewed and confirmed in 2026.
Water quality — Determination of pHT in seawater — Method using the indicator dye m-cresol purple
Description
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 of pHT from 7,4 to 8,2 for normal seawater of practical salinity ranging from 20 to 40.
Edition
2
Published Date
2026-07-09
Status
PUBLISHED
Pages
13
Language
English
Format
Secure PDF
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Abstract
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 of pHT from 7,4 to 8,2 for normal seawater of practical salinity ranging from 20 to 40.
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