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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 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 Fiber Identification by Selected-Area Electron Diffraction (SAED) and Energy-Di.spersive X-RAY Spectroscopy (EDS) Method: ?>HER.A Final Rule, SPA Federal Register (40 CFR, Part 763i, Vol. 52, No. 210, October 30, 1987
Sample Identification Analysis Parameters
Project/Site; New Stuyx^esant H.S., 345 Chambers St., NY', NY TEM Sample No.: 5739 61955 Exterior Interior of Building & Roof Date Received: 10722/01 Grid Openings Analyzed:__ 4
Project Sample No.: 2D Average Grid Opening: 106.00 um
Air Volume: 1944 liters Total Area Analyzed: 0.04 50 mTn2
Filter Type: MCE 25 mm dram,, Pore Size: 0.45 um Analytical Sensitivity : 22.2 s/mrr.2 Effective Area: 385mm2 0.0044 s/cc
FIBROUS PARTICULATES ANALYZED Number Observed CONCENTRATION Total Single Matrix Total. Struct. Filter Air Fiber;:: Bundles Clusters Struct. Struct > = 5um Struct/mrri2 Struct/cc nqm/m3
Chrysotila Asbestos 0 0 0 0 0 0 0.0 0.0000 0
Amphibole A.sbestos 0 0 0 0 0 0 0.0 0 . 0000 0
Ambiguous Cl 0 0 0 D 0 0.0 0.0000 0
Total asb'sstos {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 0 0 0 0 0 0 0.0 0.0000 N/A
Totals {All Structures: 0 0 0. 0 0.0000 N/A The estimated uncertainty C'f this analysis is 1 standard deviation.
Non-asbestos fiber i.d. (EDS/SAED): None detected Amphibole Asbestos Type; None detected
The j\nalysis 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 Peysakhcv Michael A. Gorycki, Ph.D. Director of Electron Microscopy
CONFIDENTIAL, CITY_21MC100_003470321 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000176452
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