- Adequate ventilation and illumination.
- Atmosphere tested and found safe.
- Spaces to be visited.
- Space secured for entry.
- S.C.A.B.A. sets available at entry (apparatus tested).
- Responsible person available at all times at entry point.
- Names of all personnel entering.
- Communication –Person entering, tank top, bridge
- Anticipated time of completion of entry.
- Personnel protective equipment to be used.
- Where required breathing apparatus to be used.
- Testing equipment available for regular checks:
- O2 Analyser – Oxygen deficiency
- Explosimeter – Measures explosive limits
- Tank Scope – Measures oxygen in inert atmosphere
- Dragger Tubes – Measures oxygen if correct tube fitted (also measures the presence of various toxic gases).
