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Zeoman  
#1 Posted : 02 March 2015 12:22:09(UTC)
Rank: New forum user
Zeoman

Before I start, Please note, I am not NeBOSH Trained, I am using common sense, and my company, being small will not pay for either me to do a NeBOSH or for someone outside to do a DSEAR assessment for us. Iknow I am not competenat, so please do not go down that alleyway. I have a job to do and I need some help please. I work for a small Bio-Pharmaceutical company on th IOM. I have to do a DSEAR assessment as part of our fire risk assessment performed last year. I am the H&S Coordinator for the site. We use flammable solvents in an extracted workway. (Airflow is very good). We should use the workways with sashes closed, but this is not always possible. We have used a gas detector and it has shown the airflow prevents buildup of a flammable atmosphere. However, My boss, wants to de-classify the workbays as very little of out small equipment is ATEX rated. I however, want to Class them as a Class 2, as the fire alarm will supress extraction and and belts can and will break. I see that although the potential is small, it is still present. My Boss however, knows the powers to be, will not spend thousands on new ATEX equipment. Can someone please advise. Thanks in advance Jon
imwaldra  
#2 Posted : 02 March 2015 12:44:52(UTC)
Rank: Super forum user
imwaldra

I believe you are correct. A good starting point is the HSE guidance on laboratory hazardous area classification - see http://www.hse.gov.uk/el.../atex/classification.htm , where the scale of the operation is an important factor. A good fume cupboard will have a low air flow alarm - which might affect your risk assessment (and therefore the Zone) if fume cupboard tasks are always attended. But, if they are sometimes unattended, and therefore vapour could build up due to ventilation failure, then you are definitely right!
jay  
#3 Posted : 02 March 2015 12:46:25(UTC)
Rank: Super forum user
jay

What is the quantity of Highly Flamnmable liquids used and what is the minimum Air Change Rate? There is some HSE Guidance at:- Hazardous area classification and Laboratory operations http://www.hse.gov.uk/el.../atex/classification.htm
jay  
#4 Posted : 02 March 2015 12:49:42(UTC)
Rank: Super forum user
jay

It seems that Ian & I have referred you to the same guidance! The scale of operation and level/relaibility of ventilation rate is important
walker  
#5 Posted : 02 March 2015 12:51:23(UTC)
Rank: Super forum user
walker

Who will be viewing the FRA? I assume your local fire authority, you could seek advice from them
Zeoman  
#6 Posted : 02 March 2015 13:03:11(UTC)
Rank: New forum user
Zeoman

Thank you very much for the information. Very helpful. I do not know who will externally will review our FRA, the Manx Fire Authority are rather laid back, but we are working with them. Cheers Jon
walker  
#7 Posted : 02 March 2015 14:47:15(UTC)
Rank: Super forum user
walker

quote=Zeoman], the Manx Fire Authority are rather laid back, Cheers Jon
Xenophobic I know, but I like to imagine Pugh, Pugh, Barney, McGrew. ;-))) Whose professionalism I have always admired.
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