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NYC-WTC_000177638
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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: lO/29/Ol
ASBESTOS FIBER ANALYSIS BY TRANSMISSION ELECTRON MICROSCOPY (TEM) With Fiber Identification by Selected-Area Electron Diffraction (SAED) and Energy-Dispersive X-RAY Spectroscopy (EDS) Method: f.HERA Final Rule, iSPA Federal Register (40 CFR, Part 763), Vol. 52, No. 210, October 30, 1987
Sample Identificacion Analysis Parameters
Project/Site: New Stuyn/esant H.S., 345 Chambers St., NY, NY TEM Sample No.: 5785 - 62425 Exterior b Interior of Building & Roof Date Received: 10/28/01 Grid Openings Analyzed:__ 4
Project Sample No.; 16 Average Grid Opening: 106.00 um
Air Volum5 ; 1944 liters: Total Area Analyzed: 0.0450 mm2
Filter Ty^e; MCE 25 mm c.iam. , Pore Size: 0.45 um Analytical Sensitivity:22^2 s/mm2 Effective Arer.: 3 65 mm2 0.U044 s/cc
FIBROLTSPAKTICULATES ANALYZED Number Observed CONCENTRATION Total Single Matrix Total. Struct. Filter Air Fiberi Bundles Clusters Struct. Struct > = 5um Struct/mm2 Struct/cc ncim/m3
Chrysotile Asbestos 0 0 0 0 0 0 0.0 0.0000 0
Amphibole Asbestos C 0 C 0 0 0 0.0 0.0000 0
Ambiguous 0 0 0 0 0 0 0.0 0.0000 0
Total asbestos (includes ambiguous structures) 0 0 0.0 0 . 0000 0 Non-Asbestos 0 0 0 0 0 0 0.0 0.0000 N/A No Identification C 0 0 0 0 0 0.0 0 . 0000 N/A
Totals (All Structures) 0 c 0.0 0.0000 N/A The estimated uncertainty cf this analysis is 1 standard deviation.
Non-asbestos fiber i.d. (EDS/SAED): None detected Amphibole Asbestos Type: None detected
The Analysis was carried out in accordance with the approved TEM method. This laboratory is in compliance with the quality specified for the method.
Aneilyzed by: Report Reviewed by:
Marek Peysakhov Michael A. Gorycki, Ph.D. Director of Electron Microscopy
CONFIDENTIAL, CITY_21MC1OO_OO3473476 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000177638
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NYC-WTC_000177638Source: NYC Law Department, mirrored locally
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