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CoSHH/LEV - Use of SF6 (Sulphur Hexafluoride) in fume cupboards
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Richard Davis1971  
#1 Posted : 11 May 2017 12:34:57(UTC)
Rank: New forum user
Richard Davis1971

Although SF6 is used as a tracer gas when servicing fume cupboards, can it actually be used in an externally ducted fume cupboard as part of an experiment?

Am coming at this less from a H&S angle, more an environmental angle. Although there are no conventional environmental hazards detailed on the safety data sheet, SF6 is a potent greenhouse gas for which there is EU regulation (enforced by the Environment Agency)

Any help appreciated, many thanks in advance
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A Kurdziel  
#2 Posted : 11 May 2017 13:03:20(UTC)
Rank: Super forum user
A Kurdziel

The use of SF6 Has not been banned as such under the EU directive (see http://eur-lex.europa.eu/LexUriServ/LexUriServ.do?uri=OJ:L:2006:161:0001:0011:EN:PDF ). Quickly looking at this it depends on what you want to use it for and how much you intend to discharge.  Ideally you should be recycling the gas rather than pumping it out in to the atmosphere but here there is an example of an experiment carried out on the London Underground to mimic a chemical weapons attack. I suspect that the SF6 went to atmosphere- http://news.bbc.co.uk/1/hi/england/london/6492501.stm

 

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thanks 1 user thanked A Kurdziel for this useful post.
Richard Davis1971 on 11/05/2017(UTC)
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