ISO 18191:2026
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ISO 18191:2026

Water quality — Determination of pHT in seawater — Method using the indicator dye m-cresol purple

Summary

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.

Notes

40.00 : DIS enregistré

Technical characteristics

Publisher International Organization for Standardization (ISO)
Publication Date 07/07/2026
Edition 2
Page Count 13
EAN ---
ISBN ---
Weight (in grams) ---

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