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ISO 18191:2015

Water quality — Determination of pHt in sea water — Method using the indicator dye m-cresol purple
1. 9. 2015.

Опште информације

90.92     22. 4. 2023.

ISO

ISO/TC 147/SC 2

Međunarodni standard

13.060.50  

engleski  

Kupovina

Objavljen

Jezik na kome želite da primite dokument.

Apstrakt

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.

Životni ciklus

TRENUTNO

OBJAVLJEN
ISO 18191:2015
90.92 Odluka o izmeni ili reviziji standarda
22. 4. 2023.

REVIDIRAN OD

PROJEKAT
ISO/FDIS 18191