Jerry:

I don't think anyone uses PCBs (polychlorinated biphenyls) anymore...since it's toxic.  They were used widely as insulation fluids in the older electrical equipment.  However, because of it's environmental persistence, you'll still pretty much find it everywhere...including our fat cells.

Hans Shin

-----Original Message-----
From:   Jerry Hartman [SMTP:[log in to unmask]]
Sent:   Wednesday, June 21, 2000 12:43 PM
To:     [log in to unmask]
Subject:        [TN] PCB fab chemical question

Anyone know if any of these chemicals are used in the manufacture of
printed circuit board fabs?
[log in to unmask]

Polychlorinated Bipenyls (PCBs) or any products from this list:

Polychlorinated Biphenyls
Polychlorinated Terphenyls
Monomethyl - Dibromo - Diphenyl Methane
Monomethyl - Dichloro - Diphenyl Methane
Monomethyl - Tetrachloro - Diphenyl Methane

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