In message <[email protected]>, dated Tue, 4 Feb
2014, Brian Jones <[email protected]> writes:
he principle is that the primary harmonised standard (in this case EN
54) sets the requirements, and the dated reference prevails over the
edition listed in the OJ. However if EN 50130-4 is applied directly in
its own right to a product, then the OJ dates are used.
This is very good advice, but I think there is another aspect that
should be considered.
WHY is it necessary for a committee to review dated cross-references in
its standards?
If the new edition of the referenced standard contains the same, or
effectively the same, text as the previous edition, then simple updating
is desirable, if not strictly necessary according to Brian's statement
of the rule.
But if the new edition does NOT contain relevant text, then action
almost certainly needs to be taken. For example, the cross-reference
could be to a requirement, or even a whole method of measurement, that
has been abandoned or superseded.
--
OOO - Own Opinions Only. With best wishes. See www.jmwa.demon.co.uk
Nondum ex silvis sumus
John Woodgate, J M Woodgate and Associates, Rayleigh, Essex UK
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