ACTSNYC@cs.com on wed 19 apr 00
> ---------- Forwarded message ----------
> Date: Tue, 18 Apr 2000 15:06:38 EDT
> From: Mary Kings
> Reply-To: Ceramic Arts Discussion List
> To: CLAYART@LSV.UKY.EDU
> Subject: Carbon Monoxide & Gas Kilns
> Resent-Subject: Carbon Monoxide & Gas Kilns
> ----------------------------Original message----------------------------
> After firing the gas kiln at our co-op this past weekend for 16 hours, my
> firing partner experienced some unpleasant reactions the next day. These
> symptoms consisted of dizziness, nausea ,very severe headache and extreme
> tiredness. I had no symptoms other than tiredness from lack of sleep.
Could
> there be a connection to the kiln? The carbon monoxide detector was
> triggered at one point during the latter part of the firing when the glaze
> reduction was taking place. <
Your partner's symptoms were consistent with a more than moderate CO
exposure. Although I might have thought they would have started a little
sooner. And some people have more tolerance, so I wouldn't be surprised if
you had only tiredness.
>
> Is there anyone out there who has had a similar experience? We are quite
> concerned about the safety of our members if there could be a danger with
> our kiln.
> Mary Kings,
> Waterloo Potters Workshop
>
If it is a fairly new CO detector, it didn't trigger until one of three sets
of conditions was met in regard to the concentration of CO in the air:
100 ppm averaged over < 90 minutes
200 ppm averaged over < 35 minutes
400 ppm averaged over < 15 minutes
The OSHA limit is 35 ppm averaged over 8 hours, but the detector would not
alarm if you were at less than 100 ppm for an almost indefinite period of
time!!!
The US EPA says that for the general public.
12 ppm averaged over 8 hours is unhealthy for sensitive people
15 ppm averaged over 8 hours is unhealthy
30 ppm averaged over 8 hours is very unhealthy
40-50 ppm averaged over 8 hours is hazardous.
In other words, your CO detector will alarm in time to save your life, but
not your health. You need one that reads out digitally and will start
letting you know much earlier that the levels are high.
If you'd like a data sheet on CO that explains all about the detectors, the
EPA and OSHA standards, etc., send me a self addressed stamped envelop and
I'll put one in the mail. The data sheet was written for scenic artists
working on movie locations where gas powered equipment is used indoors, but
the facts are the same no matter what the source of CO. You are welcome to
it.
Monona Rossol
ACTS
181 Thompson St., # 23
NYC NY 10012-2586 212/777-0062
ACTSNYC@cs.com
>
Dorothy Weber on thu 20 apr 00
Interesting thread. We have installed CO monitors in our home. I think I will
put one in the kiln area and see what happens.
Thanks
Dorothy Weber
Manakin-Sabot, Va.
GSM_ENT on thu 20 apr 00
Hi Mary~
You question should be directed to Mr. Tim Frederich, of the Orton Firing
Institute. Their charter calls for research and development in the ceramic
area. Their laboratory has made extensive tests in all aspects of firing,
including gases released. I am confident they will be able to provide you
with extensive information to that respect.
Reagard,
Manuel R A "Tony" Diaz Rodriguez
MAJ., US Army (Ret.)
Master Kiln Repair Technician
Multi-Factory Qualified Senior Educator
Multi-Company Product Qualified Teacher
----- Original Message -----
From:
To:
Sent: Wednesday, April 19, 2000 11:27 AM
Subject: Re: Carbon Monoxide & Gas Kilns (fwd)
> ----------------------------Original message----------------------------
>
> > ---------- Forwarded message ----------
> > Date: Tue, 18 Apr 2000 15:06:38 EDT
> > From: Mary Kings
> > Reply-To: Ceramic Arts Discussion List
> > To: CLAYART@LSV.UKY.EDU
> > Subject: Carbon Monoxide & Gas Kilns
> > Resent-Subject: Carbon Monoxide & Gas Kilns
> > ----------------------------Original
message----------------------------
> > After firing the gas kiln at our co-op this past weekend for 16 hours,
my
> > firing partner experienced some unpleasant reactions the next day.
These
> > symptoms consisted of dizziness, nausea ,very severe headache and
extreme
> > tiredness. I had no symptoms other than tiredness from lack of sleep.
> Could
> > there be a connection to the kiln? The carbon monoxide detector was
> > triggered at one point during the latter part of the firing when the
glaze
> > reduction was taking place. <
>
> Your partner's symptoms were consistent with a more than moderate CO
> exposure. Although I might have thought they would have started a little
> sooner. And some people have more tolerance, so I wouldn't be surprised
if
> you had only tiredness.
>
> >
> > Is there anyone out there who has had a similar experience? We are
quite
> > concerned about the safety of our members if there could be a danger
with
> > our kiln.
> > Mary Kings,
> > Waterloo Potters Workshop
> >
> If it is a fairly new CO detector, it didn't trigger until one of three
sets
> of conditions was met in regard to the concentration of CO in the air:
>
> 100 ppm averaged over < 90 minutes
> 200 ppm averaged over < 35 minutes
> 400 ppm averaged over < 15 minutes
>
> The OSHA limit is 35 ppm averaged over 8 hours, but the detector would not
> alarm if you were at less than 100 ppm for an almost indefinite period of
> time!!!
>
> The US EPA says that for the general public.
>
> 12 ppm averaged over 8 hours is unhealthy for sensitive people
> 15 ppm averaged over 8 hours is unhealthy
> 30 ppm averaged over 8 hours is very unhealthy
> 40-50 ppm averaged over 8 hours is hazardous.
>
> In other words, your CO detector will alarm in time to save your life, but
> not your health. You need one that reads out digitally and will start
> letting you know much earlier that the levels are high.
>
> If you'd like a data sheet on CO that explains all about the detectors,
the
> EPA and OSHA standards, etc., send me a self addressed stamped envelop and
> I'll put one in the mail. The data sheet was written for scenic artists
> working on movie locations where gas powered equipment is used indoors,
but
> the facts are the same no matter what the source of CO. You are welcome
to
> it.
>
> Monona Rossol
> ACTS
> 181 Thompson St., # 23
> NYC NY 10012-2586 212/777-0062
>
> ACTSNYC@cs.com
>
>
>
>
>
> >
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