re cyl tests
When the new standard comes into force on July 1st you can still use your HSE cyl in th UK if in test, the new cyl is valid thoughout europe and UK but not USA, all cylinders manufactured after end June 03 will be to the new standard, as the HSE cyls life expire after 15 yrs then HSE will no longer be seen.
DOT and Hse cannot be legaly used in Europe but no one seems to know for definate and millenium will fill anything airtight it seems.
AS we find out more we will let you know
regards
Trevor