BS ISO 18191:2026
Water quality. Determination of pHT in sea water. Method using the indicator dye m-cresol purple
Water quality. Determination of pHT in sea water. Method using the indicator dye m-cresol purple
- Статус документа:
- Действующий
- Формат:
- Электронный (PDF)
- Дата публикации:
- 31 июля 2026 г.
- ICS:
- 13.060.50
- SKU:
- BS ISO 18191:2026
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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