Hazard

Controls

Notes

Up to 500ml of highly flammable liquids (HFLs) or aerosols.

For isolated lidded containers further controls not usually required.

Certain high hazard research compounds assessed as part of task or process that will consider use and storage.

0.5 -50l of HFLs or aerosols.

·         Assessed when in use.

·         Stored in 90-minute rated fire-resistant cabinet.

Where existing labs are using single skinned and other storage cabinets of a lower rating should look to replace these when possible.

>50l of HFLs

·         External storage.

·         Assessed internal storage.

Large scale storage (regarded as zone -2 area by DSEAR)

Stores will include:

·         Ventilation (internal must be fire rated).

·         Spill protection.

·         Ignition control e.g., appropriate ATEX rated electrical equipment.

·         If internal appropriate fire-resistant structure.

·         Assessment of need for fire suppression.

There are currently several existing or newer stock and wastes stores at Mile End, Whitechapel and Charterhouse Square where this applies. 

Any new facility will require detailed assessment as part of process to install.

Use of flammable and oxidising materials in processes and experiments.

Current assessment should consider the risks associated with flammability, etc. as part of the broader assessment of health and environmental impacts.

Do not use the term DSEAR assessment; use term ‘hazardous substance assessment’ to ensure all health, physical and environmental risk are assessed.

Use of flammable and oxidising gases

·         Not to be confused with storage which should be in a well ventilated and secure option outside.

·         External location with automatic valves to a leak detection and fire alarm; with equipment fed via a manifold or pipeline.

·         If internal to building, only use minimum quantity needed for activity.

·         Assess for other specific controls e.g., 90-minute fire rated cabinets.

·         Flash back arrestors fitted.

·         Generally, for a cylinder in use it would be expected it would need relacing once every 4 weeks.

·         Small gas cylinders to support individual experiments (typically less than a liter in capacity) are assessed as part of process or task.  Information may still be relevant for fire brigade red box.