(9) Where the tween deck of a fishing vessel is situated at least 760 mm or two per cent of the length, whichever is the greater, above the deepest load water line, side scuppers may be fitted if an automatic non-return valve with positive means of closing it from the tween deck space and with extended spindles to the weatherdeck is fitted to each scupper.

‘safety accessories’ means devices designed to protect pressure equipment against the allowable limits being exceeded, including devices for direct pressure limitation, such as safety valves, bursting disc safety devices, buckling rods, controlled safety pressure relief systems (CSPRS), and limiting devices, which either activate the means for correction or provide for shutdown or shutdown and lockout, such as pressure switches or temperature switches or fluid level switches and safety related measurement control and regulation (SRMCR) devices;

The radii on edges on the end of a stem shall be determined at the point(s) of contact with the testing device and may be progressively less around the full circumference of the stem end.

- devices for direct pressure limitation, such as safety valves, bursting disc safety devices, buckling rods, controlled safety pressure relief systems (CSPRS), and

Moreover, the various components of such devices (e.g. hingeplates, pins or swivels) must be so fitted that they cannot be removed or dismantled when the load compartment is closed and sealed without leaving obvious traces. However, where such a device is not accessible from outside it will suffice if, when the door or the like has been closed and sealed, it cannot be detached from the hinge or similar device without leaving obvious traces. Where a door or closure-device has more than two hinges, only those two hinges nearest to the extremities of the door need to be fixed in conformity with the requirements of subparagraph (a) (i) and ( ...[+++]ii) above.

the fastening pin and securing collar of the device are assembled by pneumatic or hydraulic tooling and fixed behind a plate or similar device fitted between the outer layer of the door structure and the insulation; and