Entry into DB tank / Enclosed space

→ Follow the Guidelines of COSWP and company SMS procedures.

→ Carry out a risk assessment for the entry and making inspection.

→ Identify the potential hazards and eliminate them.

→ The tank to be empty & stripped.

→ Secure the space against the ingress of dangerous substances by blanking off pipe lines or other openings and closing & tieding up valves.

→ Open at least 2 manholes.

→ Thoroughly ventilate the tank.

→ Keep the space illuminated and well ventilated throughout.

→ Check the tank atmosphere for oxygen. Check the sample in different levels of the tank. Use sampling tube, aspirator & oxygen analyser. Ensure oxygen is at least 20.9% by volume.

Use combustible gas detector for flammable gas (not more than 1% LEL).

→ Select the person in charge for the operation.

→ Nominate the person for entry and brief them accordingly.

→ Post notice in E/room and cargo control room.

→ Inform Master & watch officer.

→ Issue a ‘’Permit to work’’.

→ Carry out a tool box meeting.

→ At least one person to be present at the access at all times.

→ Wear appropriate PPE.

→ Establish & check communication.

→ Establish reporting intervals & procedures for recording all reporting with times.

→ Make entry –BA sets with spare bottles, escape sets, safety harness, flash light, stretcher, heaving line and life line etc.

→ Complete the inspection before the permit expires. Otherwise re-assess and make new permit.