NYC 9/11 Public Portal Document
ATC Environmental, Inc.
104 East 25th Street
New York, New York 10010
ATC Associates Inc. Approved N.Y. State ELAP #10879
104 East 25th Street ACCREDITED NVLAP Lab Code # 1187
New York, NY 10010 Report Date: 10/23/01
A5BE5TO5 FIBER 7VNALY5IS BY TRANSMISSION ELECTRON MICROSCOPY (TEM)
with Fiber Identification by Selected-Area Electron Diffraction (SAED) and Energy-Dispersive X-RAY Spectroscopy (EDS)
Method; AHERA Final Rule, EPA Federal Register (40 CFR, Part 763), Vol. 52, No. 210, October 30, 1987
Sample Identification Analysis Parameters
Project/Site: 40 Rector Street 40 Rector St., NY, NY TSM Sample No.; 5741 - 61972
Floors 1-12, 14 15, 19
Date Received: 10/23/01 Grid Openings Analyzed: 4
Project Sample No.; 13-15 Average Grid Opening: 106.00 urn
A,ir Volume: 1820 lite^ Total Area Analyzed: 0.0450 mm2
Filter Type: MCE 25 mm diam., Pore Size: 0.45 urn Analytical Sensitivity: 22.2 3/tnm2
Effective Area: 385 mm2 0.0047 s/cc
FIBROUS PARTICULATES ANALYZED
Number Obseirved CONCENTRATION
Total
Single Matrix Total. struct. Filter Air
Fibers Bundles clusters Struct. Struct >=5um Struct/mm2 Struct/cc nqm/m3
Chrysotile Asbestos 0 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 0.0 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 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 of this analysis is 1 standard deviation.
'h Non-asbestos fiber i.d. (EDS/SAED): None detected
i/i Tkmphibole 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
NYC-WTC_000174899
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