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Old 12th Jan 2023, 1:33 pm   #20
suebutcher
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Join Date: Jul 2012
Location: Daylesford, Victoria, Australia
Posts: 674
Default Re: How safe are our collections?

Was thorium the radioactive material in the gas regulator tubes, or something else? Are valves like the 0A2 going to stop working eventually even if they're unused?
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