[USMA:36001] Re: History of imperial since 1824

[Philip S Hall]

I had to wait until I got a response from a TSO I know before making the 
following claim.

It is ***illegal*** to have glasses marked as "568ml" for beer/ale/cider 
in pubs.  You cannot even have a dual label (imperial/metric).

I too have made enquiries about this and the advice I have received is as 
follows:

The "pint" indication is mandatory. However the law doesn't explicitly ban 
supplementarry metric indications. There is a principle in British law that 
if something is not prohibited then it is allowed. In the event that 
glasswear was submitted for approval for use in trade bearing both metric 
and imperial it would only be rejected if the extra information made it 
unclear such that it could be misread for example as meaning "1 pint + 568 
ml".

I can't think of any reason why a glass manufacturer would bother about the 
metric label unless there is a market for thier products in other countries 
where they can be used but metric is required.

In conclusion therefore we can rule out glasses that just say "568 ml" but 
we can't rule out "PINT" ... "568 ml"

Phil Hall