Your site’s Abbreviations of Units of Measurement page (https://englishplus.com/grammar/00000058.htm) makes a number of recommendations and assertions of correctness, for example, with regard to cc and to µ, micro-, and micron, inconsistent with those on the National Institute of Standards and Technology’s site (http://physics.nist.gov/cuu/Units/ and pages linked to therefrom), which your page references. It would be helpful either to modify your page to make it consistent with National Institute of Standards and Technology’s recommendations and assertions or to note and explain the inconsistencies, for example, that, in English, the word micron is still commonly used to mean micrometer (British micrometre) in a number of fields, e.g., semiconductor technology, despite of the fact that it has not been officially internationally sanctioned for decades.

Thank you for the note. We have not checked the posting recently. Our page was based on an older standard. It has been updated.