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/24/Ol
ASBES'rOSFIBER^,NALYSISBYTRANSMISSIONELECTRONMICROSCOPY(T;^
With Fiber Identification by Selected-Area Electron Diffraction (SAED) and Energy-Disper.sive X-RAY Spectroscopy (EDS)
Method: AilEI^A Final Rule, ERA Federal Register (40 CFR, Part 763), Vol. 52, No, 210, October 30, 1987
Sample IdentLficarion Analysis Parameters
Project/Site: New Stuyvesant H.S.,.345 Chambers St., NY, NY TEM Sample No.; 5748 62021
Exterior & Interior of Building & Roof
Date Received: lQ/23/0] Grid Openings Analyzed;__ 4
Project Sample No. : 20 Average Grid Opening: 106.00 um
Air Vcluint!: 1921 liteis Total Area Analyzed : 0^£150 nm2
F i 11 eTyj < e : MCE 25 mm dian . , Pore Size: 0.45 um Analytical Sensitivity:22^2 s/mm2
Effective Area: 385 inm2 0.0045 s/cc
FIBROUS PARTICULATES ANALYZED
Number Observed CONCENTRATION
Total
Single Matrix Total. Struct. Filter Air
Fibers Bundles Clusters Struct. Struct > = 5um Struct/mrr.2 Struct/cc nam/m3
Chrysotile Asoestos 3 0 0 0 0 0 0.0 0.0000 0
Amphibole Asbestos 3 0 0 0 0 0 0.0 0.0000 0
Ambiguous 3 0 0 0 0 0 0.0 0.0000 0
Total asbestos (includes aToiguous 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 ot this analysis is 1 standard deviation.
Non-asbestos fibe 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:
Marek Peysakhov Michael A. Gorycki, Ph,D.
Director of Electron Microscopy
CITY_21MC100_003107218
NYC-WTC_000185597
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