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Janet
We will also be installing the same equipment, and have had no end of 'fun'
trying to second-guess all health and safety issues. I think the important
thing is to get your local health and safety adviser engaged in decisions as
soon as possible, and treble whatever estimate you made for the financing of
the installation.
In our case we will be placing the carbon monoxide in a safety cabinet in
the laboratory. This largely reflects the fact that our external gas
cylinder store is on the far side of the building (and local planning rules
won't allow us to build one on the near side), and the 'pipe runs' from it
to the lab are complex (going into roof spaces above offices etc.). This is
OK for relatively harmless gases (helium etc.), but the possibility of a
small leak of CO finding its way into someone's office meant that our local
specialist gas fitter wouldn't even quote for installing such a run.
The sulphur dioxide will also be run from the safety cabinet (but not CO and
SO2 in the cabinet at the same time - i.e. when SO2 is being analysed the CO
cylinder will be uncoupled and placed in the external gas store). There
should be provision for purging the SO2 manifold when disconnecting the SO2
cylinder.
The safety cabinet will be connected to an exhaust with a recommended
extraction rate of 360 cubic metres per hour! and we will 'tap in' to this
to provide extraction for the Conflo and rotary pump.
Gas monitoring will be for CO, SO2 and oxygen depletion.
I'm hoping this will all be completed in the few couple of weeks, as the
Finnigan kit is due to arrive soon!
Tim H.E. Heaton
NERC Isotope Geosciences Laboratory
British Geological Survey
Keyworth, Nottingham NG12 5GG, England
(www.bgs.ac.uk/nigl/index.htm)
Tel. +44(0)115 936 3401
Fax +44(0)115 936 3302
E-mail: [log in to unmask]
-----Original Message-----
From: Janet Hope [mailto:[log in to unmask]]
Sent: Tuesday, October 02, 2001 7:38 AM
To: [log in to unmask]
Subject: [ISOGEOCHEM] CO alarm requirements
We are installing a Delta plus XL with a TC/EA, initially for deuterium
analysis. Whilst we probably wont be measuring oxygen (and this requires CO
reference gas) at present I am wondering how other labs get on with OH&S
requirements.
I know about the ConFloIII and GC/C/TC venting.Can the 2 venting ducts be
connected. What sort of alarm system is required for the CO? Would an alarm
be sited near the CO cylinder? Are you allowed to have the cylinders in the
labs? I understand that these requirements are subject to local regulations
but I would be grateful for any info or advice.
Janet Hope
Isotope and Organic Geochemistry
Petroleum and Marine Division
AGSO-Geoscience Australia
ABN: 80 091 799 039
Tel: (02) 6249 9487 / 9594
Fax: (02) 6249 9961
email: [log in to unmask]
web site: http://www.agso.gov.au
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