OCR status: ok · source: pdftotext
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: 10/11/01
ASBESTOS FIBER ANALYSIS 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 AnalysisParamiet^^
Project/Site: 99 Church Street, 99 Church St , NY, NY TEM Sample No.■ 5660 - 60864 eth Floor Date Received 10/10/01 Grid Openings Analyzed.__ 4
Project Sample No 8-3 Average Grid Opening 106 00 um
Air Volume- 1800 liters Total Area TUialyzed 0.0450 mm2
Filter Type: MCE 25 mm diam.. Pore Size 0 45 um Analytical Sensitivity 22 2 s/inm2 Effective Area.385mm2 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 ngm/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_21MC100_0028 42212
NYC-WTC_000209767
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Similarity score 0.997 (not a probability)
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