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1950s asbestos pipe.
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Previously:
Antique asbestos shingle cutter - photo
Asbestos cigarette filter - photo
Early asbestos processing - GIF
Paving roads with asphalt-asbestos mixes - video
Asbestos really is a great material. And the toxicity is wildly overblown. I'm not saying we should be actively using it in products, but the stuff isn't plutonium.
If you want a laugh, look at the allowable worker exposure limits for airborne asbestos fibres. I believe Canada and the US are similar. In Canada you can be in an atmosphere with 1 airborne asbestos fibre per 10 ccs of air. That's 100 fibres per litre of air for an 8 hour work shift.
https://www.lakeheadu.ca/faculty-and...8%20hour%20day.)
Do they still make Transite pipe? Is it still in place I did a project years ago where we in installed Transite I wonder if it is still there?
You are correct nova_robotics. Research shows that brown and especially blue asbestos are much more dangerous that white (chrysotile). Blue asbestos was mostly used in Navy ships and is usually considered to be the most dangerous to health. The U S govt. makes no distinction among the different types as far as danger is concerned. Chrysotile is, I think, the type that was most widely used and much money has been spent being overly careful in its abatement.