Also to keep in mind, is that some of the other metals in the glass are at LEAST as toxic as lead if you breathe them in. cadmium, arsenic, silver and gold (to name a few) all toxic and all used in glass colorants, and/or fuming processes. More reason to have excellent ventilation.
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Lynda
Cheetah, 5 lpm and 7lpm conc/generator (8-9 psi), natural gas (booster), started 11/06
"The time you enjoy wasting is not wasted time." -- Bertrand Russell
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