BJCP 4C
A dark German lager that balances roasted yet smooth malt flavors with moderate hop bitterness.
In comparison with a Munich Dunkel, usually darker in color, drier on the palate and with a noticeable (but not high) roasted malt edge to balance the malt base. While sometimes called a "black Pils," the beer is rarely that dark; don't expect strongly roasted, porter-like flavors.
Köstritzer Schwarzbier, Kulmbacher Mönchshof Premium Schwarzbier, Samuel Adams Black Lager, Krušovice Cerne, Original Badebier, Einbecker Schwarzbier, Gordon Biersch Schwarzbier, Weeping Radish Black Radish Dark Lager, Sprecher Black Bavarian
You can view the complete style details on the BJCP website. The 2008 style guide is obsolete but there is a similar 2015 style that you can view below...
OG: 1.046-1.052
FG: 1.010-1.016
IBU: 22-32
SRM: 17.0-30.0
ABV: 4.4-5.4%