Fine for dental supply company after explosion of flammable liquid

A dental supply company has been fined £30,000 after an explosion of flammable liquid led to a fire at its premises in Halifax.

John Winters & Company Ltd pleaded guilty to safety breaches after one of its employees was put at serious risk in the explosion that led to flames ripping through the building.

Leeds Magistrates’ Court heard that, on 23 April 2021, the worker had been decanting heptane from a metal drum into a plastic bulk container.

Other employees were also put at risk when the explosion resulted in a fire spreading rapidly throughout other production buildings. Nobody was physically injured in the fire which was tackled by more than 60 firefighters at its height.

An investigation by the Health and Safety Executive (HSE) found the decanting of flammables had been unsafely undertaken at the company for several years despite well-known industry guidance.

The splash filling of Heptane generated a static charge creating a spark which caused an explosion during the decanting process. Flammable material then spread further as there were no containment measures.

The poor practice of storing cardboard boxes nearby fuelled the fire allowing it to spread significantly.

John Winters & Company, of Washer Lane, Halifax, pleaded guilty to breaching Section 2 (1) of the Health & Safety at Work etc Act 1974. The company has been fined £30,000 and ordered to pay £8,030 in costs.

After the hearing, HSE inspector Andrea Jones said: “Implementing appropriate control measures when handling flammable liquids is essential to prevent the generation of a static charge that can result in explosions and fires.

“The incident could so easily have been avoided by preventing splash filling, introducing appropriate earthing and bonding systems, training and supervision.

“HSE has well know guidance to help companies to understand what’s needed.”