- ... to 1 microgram of this chemical per cubic meter of air over a lifetime. Health Advisories Drinking ... range) and mean age was 34.2 years. Peak exposure was reported to be 210-650 ppm. ...
- ... cameras. Installation of precision light controls and exposure meters on the preservation cameras, a task begun during ... in all categories and failed to equal the peak record achieved during the previous year. De- creases ...
- ... Another problem related to the angular reading exposure meter was partly resolved by changing the meter focus from the center of the book to ... the NLM current hard copy production requires continuous flow processes. There are no single items of hardware ...
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