Reply To: pH in Nemeth or UEB
Thank you for the question, LaVerne!
To the best of our current understanding, pH is a "chemical abbreviation" and so should be transcribed in UEB in narrative text. See page 4 of the Provisional Guidance for Chemistry Notation Using Nemeth in UEB Contexts (March 2017), which includes the following:
When chemical abbreviations and acronyms appear in narrative context, code switching is unnecessary.
Section 9 of the Braille Code for Chemical Notation deals with abbreviations, and says "Single letters and combinations of letters used as 'shorthand' names of chemical matter are common in chemistry."
Braille on!
–Kyle