Shawn,
There is not, to my knowledge, any published list of customary abbreviations--except here on the Forum. So you can use whatever abbreviation or terminology you find convenient and descriptive. You should explain abbreviations in the comment addendum anyway. I had a MB call yesterday wanting to know what "DW" meant for wall finish. Most of my clients recognize this as "DryWall" (Sheetrock® is a brand name, I think.) I hadn't explained it in the Comments, and had to deal with a callback because of it.
There is not, to my knowledge, any published list of customary abbreviations--except here on the Forum. So you can use whatever abbreviation or terminology you find convenient and descriptive. You should explain abbreviations in the comment addendum anyway. I had a MB call yesterday wanting to know what "DW" meant for wall finish. Most of my clients recognize this as "DryWall" (Sheetrock® is a brand name, I think.) I hadn't explained it in the Comments, and had to deal with a callback because of it.