​About metalworking fluids

​Metalworking Fluids (MWFs) are neat oils or water-based fluids used during the machining and shaping of metals to provide lubrication and cooling. They are sometimes referred to as suds, coolants, slurry or soap.

​How harm is caused

if you inhale the mist, aerosol or vapour generated during machining
operations. Your exposure will depend on the type of machining you are doing
and how well the machine is enclosed and ventilated.

​Under suitable conditions, bacteria and fungi can grow well in metalworking fluids.
Inhalation of these bacteria, fungi or toxic by-products can cause irritation of the
respiratory tract or flu-like symptoms, as well as making existing asthma symptoms
worse.

​What precautions should you take?

As an employer you must assess the risks to your employees health and decide what precautions are needed.
​The bacterial contamination of fluids and associated machinery and pipework should be monitored and controlled.

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