OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
ATC Environmental, Inc. 104 East 25th Street t 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 Analysis Parameters
Project/Site. 99 Church Street, 99 Church St , NY, NY TEM Sample No 5660 60863 Sth Floor Date Received 10/10/01 Grid Openings Analyzed:__ 4
Project Sample No. 8-2 Average Grid Opening: 106 00 um
Air Volume 1800 liters Total Area Analyzed 0 0450 mni2
Filter Type MCE 25 mm diam , Pore Size 045 um Analytical Sensitivity 22 2 s/mm2 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/cG ngm/in3
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_002842211
NYC-WTC_000209766
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NYC-WTC_000124304
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Similarity score 0.997 (not a probability)
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Similarity score 0.997 (not a probability)
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000174893
Laboratory report documenting transmission electron microscopy analysis of air samples collected from the lobby and 16th floor in September 2001.
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Similarity score 0.996 (not a probability)
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machine-extracted · confidence unavailable · Check page ↗Readers open these alongside this record — through an Ask answer, the same folder, or indexed similarity. Not a claim they are about the same event.
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