Dear Edward,
Perhaps you should consult the relevant EU legislation (directives), that
control these aspects, and the standard methods that are included within
them.
In most cases, the country implementing the directives will draw up a book
of standard methods on each topic.
Your local EU office should be able to obtain the directives, probably free
of charge. If not, then try the EU website (ww.europa.eu.int)
John Rowlands
University of Wales, Bangor.
