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: 10/15/01
ASBESTOS FIBER ANALYSIS BY TRANSMISSION ELECTRON MICROSCOPY (TEM)
With Fiber Identification by Selected-Area Electron Diffraction (SAED; and Energy-Dispersive X-RAY Spectrosccpy ‘EDS'
Method: AHERA Final Rule, EPA Federal Register (40 CFR, Part 763), Vol. 52, No. 210, Octobei- 30, 1987
Sample Identification Analysis Parameters
/’roi ect/Site ; New Stui'vssiant H 345 Chambers St., NY. NY TPM Sample No.: 5691 6ioes
Exrer £. 'Interior of Building & Roof
Date Received: 10/15/01 Grid Openings Analyzed:__4
Project Sample No. .- N5HS - SIR-10/14 - 01 Average Grid Opening
Air Volume : ^Z^991;t^r£ Total Area Analyzed:^O.AAL^LJII’LZ
Filter Type; -MCE 25 ru dianu , Pore Size: 0.45 um Analytical Sensitivity; s/mxl
Effective Area: 385 mm2 U . C: 04 E
FIBROUS PARTICULATES ANALYZED
Number Observed CONCENTRATION
Total
S1 n g 1 £ ‘ Matrix Total. Struct. Filter Air
Fibers Bundles Clusters Struct. Struct > = 5um Struct/mm2 Struct/c nam/ra3
Chrysotile Asbestos C 0 0 0 0 c c. c 0 . oooc c
Amphibole Asbestos 0 0 0 0 0 0 C.0 0 . 0000 c
Ambiguous 0 Cl 0 0 0 0 C.C 0.0000 0
Total asbestos (includes ambiguous structures) 0 0 0.0 C .0000 c
Non-Asbestos 0 0 0 0 0 0 0.0 C.0000 N/A
No Identification 0 C 0 0 0 0 c.c C . 0000 N/'A
Totals (All Structures) 0 c 0.0 0 . 0000 N/A
The estimated uncertainty cf this analysis is i standard deviation.
Non-asbestcs 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 laboratcrv 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_003470005
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000176418
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