Enclosed Space entry

Question 1

What is an enclosed space?

Answer 1

Any enclosed or confined space in which it is foreseeable that the atmosphere may at some state contain toxic or flammable gases or vapours, or be deficient in oxygen, to the extent that it may endanger the life or health of any person entering that space.

Question 2

Give an example of a enclosed space?

Answer 2

• Cargo pump room
• Some machinery spaces
• Holds or void spaces

Question 3

What is the procedure for an enclosed space entry?

Answer 3

Before carrying out an enclosed space entry you must carry out a risk assessment, this can be found in the company’s SMS. As an entry into enclosed space requires control measures to be put in place a PTW will be used to ensure all measures have been put into place.

On the PTW you will find:

• Scope of work
• Has the space been ventilated thoroughly?
• Has the atmosphere been tested and found safe?
• Is there rescue and resuscitation equipment available at the entrance?
• Responsible person at entrance with communications?
• Adequate access and lighting?
• Correct PPE worn?
• Emergency procedures in place?

Once all control measures are out into place the authorising person may activate the PTW.

Question 4

What gases are you testing for in the enclosed space/

Answer 4

The gas reader will be testing for:

• Oxygen level
• Flammable gases / vapours
• Hydrogen Sulphide
• Carbon Monoxide

Question 5

What are the required gas readings for entry into enclosed space?

Answer 5

• Oxygen must be at least 20.8%
• Flammable gases / vapours must be NIL
• Toxic gases must be less than 50%