Originally Posted by ajdelange
The ASBC (and I believe EBC) tables are for density measured in air at 20 °C relative to the density of water, in air, measured at 20 °C.
I'm wondering if breweries adhere to the ASBC's standard when taking their own measurements. I would assume there has to be some standard amongst brewers, especially in the commercial world. Maybe my best bet is to call a few breweries and ask.