73838088
Nov 13, 1989
Jul 9, 1991
SCIENTIFIC EQUIPMENT USED FOR ENVIRONMENTAL TESTING, NAMELY AIR MONITORING CASSETTES CONTAINING FILTERS USED TO COLLECT AIR SAMPLES, DEVICES WHICH ADAPT QUARTER INCH TUBING TO AIR MONITORING CASSETTES, FIXED AIR FLOW CONTROL APPARATUS, AND ASBESTOS BULK SAMPLING KITS COMPRISING AIR SAMPLING STANDS
Electrical and Scientific Apparatus