OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
ATC Environmental, Inc. 104 East 25th Street New York, New York 10010 1 ATC Associates Inc. Approved N.Y. State ELAP #10879 104 East 25th Street ACCREDITED NVLAP Lab Code # 1187 New York, NY 10010 Report Date: 10/11/01 ASBESTOS FIBER ANALYSIS BY TRTkNSMISSION 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
Pro]ect/Site 99 Church Street, 99 Church St , NY, NY TEM Sample No . 5660 60865 Sth Floor Date Received. lO/iO/Oi Grid Openings Analyzed __ 4
Project Sample No. 8-4 Average Grid Opening 106 00 um
Air Volume 1800 liters Total Area Analyzed 0 04 50 tnm2
Filter Type MCE 25 mm diam , Pore Size 0.45 um Analytical Sensitivity: 22 2 s/mni2 Effective Area: 385 mm2 0 0048 s/cc
FIBROUS PARTICULATES ANALYZED Number Observed 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
Non-asbestos 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 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
CITY_21MC1OO_OO2842213
NYC-WTC_000209768
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