Columns and text size

General ISO guidelines say that standards should be set in two columns in nine point text; this is not suitable for some standards, such as [#!sgml!#], so the iso style allows such standards to be set with one column and/or in ten point text by giving optional arguments to \documentstyle (see $[*]$ ).

The optional arguments are independent, so that any combination of one/two columns and nine/ten point text can be used. However, one column text in nine point is highly unreadable and two column text in ten point can give bad line breaks, so these combinations are not recommended.

Columns A standard may be set in one column using the onecolumn optional argument, thus:

\documentstyle[onecolumn]{iso}

If it is only necessary to set some parts of a document with one column, then the usual LaTeX commands \onecolumn and \twocolumn may be used.

Two column text is the default, but you can explicitly demand it with:

\documentstyle[twocolumn]{iso}

Text size If a standard is to be set in one column, it is better to use ten point text for readability thus:

\documentstyle[onecolumn,10pt]{iso}

Nine point text is the default, but you can explicitly demand it with:

\documentstyle[9pt]{iso}