Although some readers in this forum are indifferent to standards for spelling and sounding the words associated with metric units of measurement, the persons who actually teach metric units in schools or in private settings, can not be ambivalent in their choices of how to write and speak metric words.
They would be perceived as silly if they alternated from one spelling to the other, and from one sounding to the other in trying to be impartial. What standards, if any, should they follow? Their own personal preferences, standards recommended in NIST documents, examples in the Oxford English Dictionary, practices exampled in the BIPM Brochure on SI, recommendations in the IEEE-ASTM SI 10, or what? Whatever their choices, they impart their choices to their “students” by example, whether “good” or “bad” in our respective minds. Eugene Mechtly
