ISO/FDIS 18191
Water quality — Determination of pHT in sea water — Method using the indicator dye m-cresol purple
| Fecha edición: |
2026-02-02
En Vigor
|
|---|---|
| Resumen: | ISO 18191:2015 specifies a spectrophotometric determination of the pHt of sea water on the total hydrogen ion concentration pH scale using the indicator dye m-cresol purple. The total hydrogen ion concentration, [H+]t, is expressed as moles per kilogram of sea water. The method is suitable for assaying oceanic levels of pHt 7,4 to 8,2 for normal sea water of practical salinity ranging from 20 to 40. |
| ICS: | 13.060.50 - Determinación de sustancias químicas en el agua |
| CTN: | ISO/TC 147/SC 2 - 52846 |
|
Anulaciones Normas |
Anula a ISO 18191:2015 |
Normas citadas
Libros relacionados
Normas relacionadas
Colecciones temáticas relacionadas
