Closed danibodc closed 2 years ago
The above terms have now been loaded to S06 and will be live on the NVS from 0730 UTC tomorrow morning.
We also have a need for a pH term where the scale used is either unknown or unspecified.
We are proposing the following: Preferred label - pH (unspecified scale) Description - A measure of acidity where the scale is either unknown or not specified.
This term is now live on the NVS: https://vocab.nerc.ac.uk/collection/S06/current/S0600281/ Preferred label - pH (unspecified scale) Description - A measure of acidity where the scale is either unknown or not specified.
To remodel our pH parameters to the new PUV semantic model, we need to create several new S06 terms for the various pH scales, as follows:
Preferred label - pH (total scale) Description - A measure of acidity based on the free proton (hydrogen ion) concentration plus hydrogen sulfate ion concentration.
Preferred label - pH (free scale) Description - A measure of acidity based on the free proton (hydrogen ion) concentration.
Preferred label - pH (seawater scale) Description - A measure of acidity based on the free proton (hydrogen ion) concentration plus hydrogen sulfate ion concentration plus fluoride ion concentration.
Preferred label - pH (NBS scale) Description - A measure of acidity based on the National Bureau of Standards' operational pH scale which denotes the negative of the common logarithm of the free proton (hydrogen ion) activity, -log ag.