ISO 18191:2026

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

Datum objavljivanja: 7. 7. 2026.

Опште информације

Trenutna faza: 60.60 Effective date: 7. 7. 2026.

Inicijator: ISO

Pripada: ISO/TC 147/SC 2

Vrsta: Međunarodni standard

ICS: 13.060.50

Jezik: engleski

Kupovina

Status: Objavljen

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Apstrakt

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.

Životni ciklus

PRETHODNO

POVUČEN
ISO 18191:2015

TRENUTNO

OBJAVLJEN
ISO 18191:2026
60.60 Standard objavljen
7. 7. 2026.