Original sentence: , grocery market traders), a wide range of other abbreviations can also be encountered, such as gr, gm, grm, gms, grms.The International System of Units abbreviation for the gram is g, and follows the numeric value with a space, as in "200 g"
Edited sentence: , grocery market traders), a wide range of non-standard ad-hoc abbreviations can also be encountered, such as gr, gm, grm, gms, grms.The only officially recognized unit symbol for the gram is g, and follows the numeric value with a space, as in "200 g"