% --------------------------------------------------------------------------
%
% the CHEMMACROS package -- module: `units'
%
% --------------------------------------------------------------------------
% Clemens Niederberger
% --------------------------------------------------------------------------
% https://github.org/cgnieder/chemmacros/
% contact@mychemistry.eu
% --------------------------------------------------------------------------
% If you have any ideas, questions, suggestions or bugs to report, please
% feel free to contact me.
% --------------------------------------------------------------------------
% Copyright 2011-2017 Clemens Niederberger
%
% This work may be distributed and/or modified under the
% conditions of the LaTeX Project Public License, either version 1.3
% of this license or (at your option) any later version.
% The latest version of this license is in
%   http://www.latex-project.org/lppl.txt
% and version 1.3 or later is part of all distributions of LaTeX
% version 2005/12/01 or later.
%
% This work has the LPPL maintenance status `maintained'.
%
% The Current Maintainer of this work is Clemens Niederberger.
% --------------------------------------------------------------------------
\ChemModule{units}{2015/09/28 chemical units}

\RequirePackage{siunitx}

% --------------------------------------------------------------------------
\DeclareSIUnit {\atm       } {atm}
\DeclareSIUnit {\atmosphere} {atm}
\DeclareSIUnit {\calory    } {cal}
\DeclareSIUnit {\cal       } {cal}
\DeclareSIUnit {\moLar     } {\mole\per\liter}
\DeclareSIUnit {\MolMass   } {\gram\per\mole}
\DeclareSIUnit {\normal    } {\textsc{n}}
\DeclareSIUnit {\torr      } {torr}

\AtEndPreamble
  {
    \chemmacros_if_package_loaded:nF {chemstyle}
      {
        \DeclareSIUnit {\cmc  } {\cubic\centi\metre}
        \DeclareSIUnit {\molar} {\mole\per\cubic\deci\metre}
        \DeclareSIUnit {\Molar} {\textsc{m}}
      }
  }

% --------------------------------------------------------------------------
\tex_endinput:D

2015/09/28 - change \AtBeginDocument into \AtEndPreamble