NYC 9/11 Public Portal Document
ATC Environmental, Inc.
104 East 25th Street
New York, New York 10010
N.Y.C. School Construction Authority Approved N.Y. State ELAP #10879
30-30 Thomson Avenue ACCREDITED NVLAP Lab Code # 1187
Long Island City, NY 11101 Report Date: 10/04/01
ASBESTOS FIBER ANALYSIS BY TRANSMISSION ELECTRON MICROSCOPY (TEM)
(EDS)
With Fiber Identification by Selected-Area Electron Diffraction (SAED) and Energy-Dispersive X-RAY Spectroscopy
Method: AHERA Final Rule, EPA Federal Register (40 CFR, Part 763), Vol. 52, No. 210, October 30, 1987
Sample Identification Analysis Parameters
Project/Site: Stuyvesant H.S., 345 Chambers St., NY, NY TEN Sample No.: 5595 - 59948
Floors 2-5. Escalators
Date Received: 10/03/01 Grid Openings Analyzed:.4
Project Sample No.: SHS-2>5.E-10/3-16 Average Grid Opening: 106.00 um
Air Volume: 1863 liters Total Area Analyzed: 0.0450 mm2
Filter Type: MCE 25 mm diem., Pore Size: 0.45 um Analytical Sensitivity: 22.2 s/mm2
Effective Area: 385 mm2 0.0046 s/cc
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FIBROUS PARTICULATES ANALYZED
Number Observed CONCENTRATION
Total
Single Matrix Total. Struct. Filter Air
Bundles Clusters Struct. Struct. >..5um Struct/mm2 Struct/cc nam/m3
Fibers
0 0 0 0 0 0.0 0.0000 0
Chrysotile Asbestos 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 0.0000 0
Total asbestos (includes ambiguous structures)
0 0 0 0 0.0 0.0000 N/A
Non-Asbestos 0 0
0 0 0 0 0.0 0.0000 N/A
No Identification 0 0
0 0 0.0 0.0000 N/A
Totals (All Structures)
The estimated uncertainty of this analysis is 1 standard deviation.
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±:`` Non-asbestos fib-- id (EDS/SAED): None detected
Amphibole Asbestos Type: None detected
The Analysis was carried out in accordance with the approved TEM method.
methoc
This laboratory is in compliance with the quality specified for the
) Analyzed by: Report Reviewed by:
I Roman Peysakhov Michael A. Gorycki, Ph.D.
Director of Electron Microscopy
NYC-WTC 000106816
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