Atmospheric Monitoring for Confined Space Entry via Rope Access.

Think Access provides atmospheric monitoring as a core element of every confined space entry operation using IRATA rope access. We carry calibrated multi-gas detection equipment, trained gas testers and continuous monitoring throughout the duration of all confined space works.

Scope at a glance

Gases monitored

Oxygen % · Combustible gas (%LEL) · Hydrogen sulphide · Carbon monoxide

Equipment

Portable multi-gas detectors · Visual & audible alarms · Regular calibration · Records maintained

Personnel

Dedicated gas tester · Stationed at entry point · Trained in readings & alarm response · No combined duties

What we do

A legal safety control

Atmospheric monitoring is a legal requirement under the Confined Spaces Regulations 1997 and a fundamental control for any entry. An enclosed atmosphere can change rapidly and without warning — oxygen can deplete, toxic gases accumulate and flammable vapours build from product residues or biological decomposition. Continuous monitoring detects these changes before they reach dangerous levels.

Multi-gas detection

We use calibrated portable multi-gas detectors that measure oxygen percentage, combustible gas as a percentage of LEL, hydrogen sulphide and carbon monoxide simultaneously — giving both visual and audible alarms when any parameter approaches a danger threshold.

Calibration & records

Equipment is calibrated at regular intervals in accordance with manufacturer requirements, and calibration records are maintained — so every reading can be trusted and evidenced.

Trained, dedicated gas testers

Our gas testers are trained in the operation and limitations of the equipment, the significance of readings in the context of the specific space, and the actions to take if an alarm activates. Monitoring is carried out by a dedicated person at the entry point — this role is never combined with other duties during an entry.

Why Think Access

Continuous atmospheric monitoring is not a formality — it is a genuine life safety control. Think Access treats it as such, providing trained personnel and calibrated equipment on every confined space operation.

F.A.Q’s

We provide monitoring as part of our own confined space entry service rather than as a standalone equipment supply. For clients who need monitoring equipment, we recommend contact with specialist gas detection equipment suppliers or rental companies.

All personnel evacuate immediately following the pre-planned withdrawal procedure. The standby team assists evacuation if required. The space is not re-entered until the cause of the alarm has been identified and the atmosphere has been verified as safe.