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TRANSMISSION ELECTRON MICROSCOPY <br /> ANALYTICAL REPORT <br /> Modified NIOSH 7402 Method <br /> Contact: Don Litchfield Report No.: 302757 <br /> Address: Del-Tech Geotechnical Support Date: Jun-30-11 <br /> 645 N. Yosemite Ave Date Received: Jun-23-11 <br /> Oakdale,CA 95361 <br /> Job Site/ 5 <br /> No. Total Samples Analyzed: <br /> CLIENT SAMPLE# C SAMPLE LOCATION <br /> _ Station C <br /> Laboratory Sample# 1323-00003-003 <br /> AIR FILTER DATA AIR PUMP DATA <br /> Type MCE 0.45um Time(min) 630 <br /> Diameter(mm) 25 Flow Rate(lpm) 2.1 <br /> Area(sq mm) 385 Volume(liters) 1323 <br /> CALCULATED ASBESTOS <br /> IDENTIFIED STRUCTURES STRUCTURE CONCENTRATION <br /> Fibers Per CC Air>Sum Length <br /> ASBESTOS OTHER <br /> AMPH. AMBIG. NON-ASB. Width>0.25 um <br /> N ND ND s < 0.0008 <br /> COMMENTS <br /> No Asbestos Detected FILTER LOADING: MODERATE <br /> SAED PHOTO ID#'s. <br /> TEM/ANALYTICAL PARAMETERS <br /> Magnification: 18,000X ANALYTICAL SENSITIVITY <br /> Grid Openings Scanned 40 Structures/sq mm 2.6 <br /> Grid Opening Area(sq.mm) 0.0096 Structures/cc 0.0008 <br /> Scan Area(sq.mm.) 0.38 <br /> NOTATION KEY _ <br /> Chrys.-Chrysotile Asbestos ND-None Detected <br /> Amph.-Amphibole Asbestos 1 um= 1 micron=0.001 mm ANALYST SIGNATURE <br /> Ambig.-Ambiguous ID I mm= 1 millimeter <br /> Non-Asb.-Non-Asbestos 1 cc= 1 cubic centimeter <br /> * -Effective values when sample has been remobilized. <br /> ASBESTOS TEM LABORATORIES,INC. 630 BANCROFT WAY,BERKELEY, CA 94710 (510)704-8930 <br /> www.asbestostemlabs.com With Offices in Reno, NV(775)359-3377 <br />