NYC 9/11 Public Portal Document
ATC Environmental,- Inc.
104 East 25th Street
New York, New York 10010
lj
ATC Associates Inc. Approved N.Y. State ELAP #10879
104 East 25th Street ACCREDITED NVLAP Lab Code # 1187
New York, NY 10010 Report Date: 09/28/01
ASBESTOS FIBER 7\NALYSIS BY TRTINSMISSION ELECTRON MICROSCOPY (TEM)
Kith' Fiber Identification by Selected-Area Electron Diffraction (SAED) and Energy-Dispersive X-RAY Spectroscopy (EDS)
L Method: AHERA Final Rule, ERA Federal Register (40 CFR, Part 763), Vol- 52, No. 210, October 30, 1987
Sample Identification Analysis Parameters
Project/Site40 P^ptpr Streetj JJYj Ky TEM Sample No.: 5574 - 59639
"A Floors 15-17
Date Received: 05/28/01 Grid Openings Analyzed:__ 6
Project Sample No.: TIP Average Grid Opening: 106.00 um
Air Volume: 1280 liters Total Area Analyzed: 0.0674 mTn2
Filter Type: MCE 25 mm.diam., Pore Size: 0.45 um Analytical Sensitivity: 14.8 s/mm2
Effective Area: 385 mm2 0■0045; s/cc
FIBROUS PARTICULATES ANALYZED
Number Observed CONCENTRATION
Total
Single Matrix Total. Struct. Filter Air
Fibers bundles Clusters Struct. Struct. ■ = 5um Struct/min2 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
i 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.
uJ
Analyzed by: Report Reviewed by:
Marek Peysakhov Michael A. Gorycki, Ph.D.
fT Director of Electron Microscopy
NYC-WTC_000174864
OCR can misread numbers and units. Confirm readings against the page image before using them.