[alt-photo] Re: lead white as ground
alt.list at albertonovo.it
Mon Mar 26 21:09:19 GMT 2012
>> below the action limit for the standard of 0.03 mg/m3.
> 0.03 mg/m3 is below the threshold for 8 hours!
I apologize, that's true: Action Level is 30 µg/m3, and it is normal to be
about 1/2 the PEL.
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