SOUNDING PIPES

Every tank on board not readily accessible must be provided with a sounding pipe, other tanks which are accessible may be provided with gauge glass or any other means of finding depth of

liquid in the tank.

Sounding pipe as far as practical must be without bends and lead in the vicinity of tank suction I lowest part of the tank. Every sounding pipe must be protected against deck cargo damage, must be provided with means of water tight closing arrangements, incase of screw down covers, the cover must be secured with chain or any other arrangements to prevent the

cover from going adrift.

The minimum bore of the sounding pipe must be 32 mm, sounding pipes passing through refrigerated spaces having temperature of 0°C or minus must be to a minimum 65 mm.

In way of the lower end of the sounding pipe, where the sounding rod strikes the bottom of the tank, a striker plate must be fitted. The striker plate must be inspected and replaced as and when deemed necessary, each time the tank is entered for any purpose.

Every tank must be calibrated and be provided with tables I graph for volume I tons calculations in various conditions of trim and list.