Reference Source

ISO 18191:2015

For ISO 18191:2015, item title is Water quality — Determination of pHt in sea water — Method using the indicator dye m-cresol purple; status code is 9599; successor is ISO 18191:2026; withdrawn / published date is 2015-09-01, recorded from its source on 2026-08-05.

Identifier
ISO 18191:2015 verified
Item title
Water quality — Determination of pHt in sea water — Method using the indicator dye m-cresol purple verified
Status code
9599 verified
Successor
ISO 18191:2026
Withdrawn / published date
2015-09-01 verified
Sourceisopublicstorageprod.blob.core.windows.net
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Review by
DatasetWithdrawn and superseded ISO standards

What the source says

61730,IS,,ISO 18191:2015,Water quality — Determination of pHt in sea water — Method using the indicator dye m-cresol purple,Qualité de l'eau — Détermination du pHt dans l'eau de mer — Méthode utilisant l'indicateur coloré au pourpre de m-crésol,2015-09-01,1,['13.060.50'],ISO/TC 147/SC 2,9599,,[86836],['en'],11,"<p>ISO 18191:2015 specifies a spectrophotometric determination of the pH<sub>t</sub> of sea water on the total hydrogen ion concentration pH scale using the indicator dye <i>m</i>-cresol purple. The total hydrogen ion concentration, [H<sup>+</sup>]<sub>t</sub>, is expressed as moles per kilogram of sea water. The method is suitable for assaying oceanic levels of pH<sub>t</sub> 7,4 to

isopublicstorageprod.blob.core.windows.net, retrieved 2026-08-05

Source

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