All Hanson Pressure Vessels EXCEPT lined potable hot water storage
tanks are built and tested in accordance with the A.S.M.E. Boiler and
Pressure Vessel Code Section VIII Division I for unfired pressure vessels
and bear a "U" stamp, National Board number and serial number,
as required. A copy of the A.S.M.E. data sheet, U1-A, signed by an A.S.M.E. authorized
inspector, will be sent with the invoice if requested at time of order.