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Asbestos TEM analysis results, 345 Chambers Street, Oct 2001
Machine-extracted title · confidence 95%ATC Environmental report on asbestos fiber analysis by TEM for exterior and interior samples collected at a school at 345 Chambers Street.
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NYC 9/11 Public Portal Document
ATC Environmental, Inc. 104 East 25th Street New York, New York 10010
N.Y.C. Board of Education Approved N.Y. State ELAP #10879 28-11 Queens Plaza North ACCREDITED NVLAP Lab Code # 1187 Long Island City, NY 11101 Report Date: 10/23/01
ASBESTOS FIBER ANALYSIS BY TRANSMISSION ELECTRON MICROSCOPY (TEM) With Fibsr Identification by Selected-Area Electron Diffraction (SAED) and Energy-Dispersive X-RAY Spectroscopy (EDS) Method: Z^HERA Final Rule, SPA Federal Register (4C CFR, Part 763), Vol. 52, No. 210, October 30, 19S7
Sample Ide;ntif ication Analysis Paraineters
Project/Site: New Stu\^esant U.S., 345 Chambers St., NY, NY TEM Sample No.: 5735 61945 Exterior oi Interior of Building &. Roof Date Received; 10/22/01 Grid Openings Analyzed:__ 4
Project Sample No.: 10 Average Grid Opening: 106.00 um
Air Volume: 1528 liters Total Area Analyzed :0^C4 5^mm2
Filter Type: MCE 25 mm dian., Pore Size: 0.45 um Analytical Sensitivity ;22.^J s/mrr^ Effective Are:a: 385 mrr^ 0.0044 s/cc
FIBROUS PARTICULATES ANALYZEZ Number Observed CONCENTRATION Total £ ingle Matrix Total. Struct. Filter Air Fibers Bundles Clusters Struct. Struct >^5um Struct/mm2 Struct/cc nqm/m3
Chrysotile Asbestos 0 0 0 0 0 0 0.0 0,0000 0
Amphibole Asbestos 0 0 0 0 0 0 0.0 0.0000 0
Ambiguous 0 0 0 0 0 0 0.0 0.0000
Total asbestos (includes ambiguous structures) 0 0 0.0 0.0000 0 Non-Asbestos 0 0 0 0 0 0 0.0 o.ooco N/A No Identification 0 0 0 c 0 0 0.0 0.0000 N/A
Totals (All Structures) 0 0 0.0 0.0000 N/A The estimated uncertainty nf this analysis is 1 standard deviation.
Non-asbestos fiber i.d. (EDS/SAED): None detected Amphibole Asbestos Type: None detected
The Analysis wsis carried out in accordance with the approved TEM method. This laboratory is in compliance with the quality specified for the method.
Analyzed by: Report Reviewed by;
Roman Peysakhov Michael A. Gorycki, Ph.D. Director of Electron Microscopy
CONFIDENTIAL, CITY_21MC100_003470311 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000176450
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