Joanne Phillips on fri 5 nov 04
I bought a used kiln and I got some of the little lead
testers that you have to break the A and B points to
do the test and the kiln walls came back positive.
I had already done one Cone 06 firing with Lead free
glazes and I used another lead tester on those fired
pieces and they came up negative.
I am running an empty kiln to cone 6 right now to see
if that helps "get the lead out."
In the future I plan on firing to cone 6.
I am planning on sending some pieces from my next
firing to get tested professionally.
My questions are:
1. Can the kiln walls test positive, yet the pieces
not get contaminated with lead?
2. Where do I send my pieces to get properly tested?
3. Is there a market for a lead positive kiln if I
plan to sell it?
Thanks so much!
Joanne
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Paul Lewing on mon 8 nov 04
on 11/5/04 6:51 AM, Joanne Phillips at joannephillipsindy@YAHOO.COM wrote:
> I had already done one Cone 06 firing with Lead free
> glazes and I used another lead tester on those fired
> pieces and they came up negative.
>
> My questions are:
> 1. Can the kiln walls test positive, yet the pieces
> not get contaminated with lead?
Joanne, I think you just answered that question above.
> 2. Where do I send my pieces to get properly tested?
Look in Ron & John's "Mastering Cone 6 Glazes" for the addresses of two
labs.
> 3. Is there a market for a lead positive kiln if I
> plan to sell it?
I'd take it off your hands, if your anywhere close to Seattle. Not
everybody makes pottery that comes in contact with food.
Paul Lewing, Seattle
claybair on tue 9 nov 04
This subject has been brought up numerous times.
Do a search of archives here are a few:
http://www.potters.org/subject09188.htm
http://www.potters.org/subject77044.htm
Gayle Bair
Bainbridge Island, WA
http://claybair.com
-----Original Message-----
From:Paul Lewing
Joanne Phillips wrote:
> I had already done one Cone 06 firing with Lead free
> glazes and I used another lead tester on those fired
> pieces and they came up negative.
>
> My questions are:
> 1. Can the kiln walls test positive, yet the pieces
> not get contaminated with lead?
Joanne, I think you just answered that question above.
> 2. Where do I send my pieces to get properly tested?
Look in Ron & John's "Mastering Cone 6 Glazes" for the addresses of two
labs.
> 3. Is there a market for a lead positive kiln if I
> plan to sell it?
I'd take it off your hands, if your anywhere close to Seattle. Not
everybody makes pottery that comes in contact with food.
Paul Lewing, Seattle
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