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Asbestos fiber TEM analysis report, Oct 9 2001
Machine-extracted title · confidence 95%Air sampling results from the exterior and interior of a high school analyzing asbestos fibers using transmission electron microscopy.
NYC-WTC_000176406Page image
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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: 10/09/01
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: ?J1ER.A Final Rule, EPA Federal Register (40 CFR, Part 763), Vol. 52, No. 210, October 30, 1987
Sample Identification AnalxsisPa^^met^rs
Project/Site: Nev Stuyvesan: H,S., 345 Chambers St., NY, NY TEM Sample No.: 5645 60652 Exterior & Interior of Building Roof Date Received; 1O£O_9Z2A Grid Openings Analyzed;__ 4
Project Sample No.: HSHS^E[R-10/9- 15 Average Grid Opening
Air Volume: 1926 liters Total Area Analyzed : 0.04 5C niin2
F.klter Tyoe; MCE 25 mm diain. , Pore Size : 0.45 urn Analytical Sensitivity :22 2 sAnm2 Effective Area: 3&5 mm2 0.0044
FIBROUS PARTICULATES ANALYZED Number Observed CONCENTRATION Total Single Matrix Total. Struct. Filter Air Fibers Bundles Clusters Struct. Struct > = 5um Struct/mm2 Struct/cc nqm/m3
Chrysotile A.sbestos 0 0 0 0 0 C 0.0 0.0000 c
Amphibole Asbestos 0 C 0 0 0 0 0.0 0.0000 c
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-AsbesCos 0 0 0 0 0 o.c 0.0000 N/A No Identification 0 0 0 0 c 0 o.c 0.0000 N/A
Totals (All Structures) 0 0 0.0 0.0000 N/A The estimated uncertainty/ of 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.
Analyzed by: Report Reviewed by:
Roman Peysakhov Michael A. Gorycki, Ph.D. Director of Electron Microscopy
CONFIDENTIAL, CITY_21MC100_003469877
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000176406
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