BS ISO 18191:2026 PDF

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

First page of standard BS ISO 18191:2026

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Title (English):

BS ISO 18191:2026

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

Document status:: Active
Format:: Electronic (PDF)
Publication date:: July 31, 2026
ICS:: 13.060.50
SKU:: BS ISO 18191:2026

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Abstract

1 Scope This document specifies a spectrophotometric determination of the pH T 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 pH T from 7,4 to 8,2 for normal seawater of practical salinity ranging from 20 to 40.

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BS ISO 18191:2026 PDF

Abstract

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Abstract

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