We have received some inquiries about the correct order of stamp marking on cylinders.
Due to a misunderstanding, the advice given has been to split the year and month with the inspectors mark.
Having checked in the latest version of the applicable standard - BS EN ISO 13769:2006 the order is given as # YY/MM - Where # is the inspector's mark and the year and month is separated by a forward slash.
There is no need to retrieve cylinders and remark them, however inspectors should change to the format above as set out in the Standard.
Although not required by the standard, in order to prevent confusion over the reversal of the of month and year after 2002, we continue to recommend that until 2013 that the year is stamped in full, i.e. # YYYY/MM
