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NYC-WTC_000200205
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NYC 9/11 Public Portal Document
.YTC Environmental, Inc. 104 East 25th Street New York, New York 10010
N.Y.C. Board of Education Approved N.Y. State ELAP 4(10879 28-11 Queens Flaza North ACCREDITED NVLAP Lab Code # 1187 Long Island City, NY 11101 Report Date: 10/10/01
ASBESTOS FIBER ANALYSIS BY TRANSMISSION ELECTRON MICROSCOPY (TEM) With Fiber Identi. .tian by Selentsd-.4rea Electron Diffraction lAEl and Energy-Dispersive X-RAY Spectrosccpy (EDS) Method: AKERA Final Rule, S?A Federal .Register (40 CFE, Parc 763), Voi. 52. No. 210, October 30, 1987
Sample Idenciflca~con Analysis Parameters
Project/Site; Murrv Berctraum H.S 411 Pearl St., NY, NY TSM Sample Nn. • - 63705 Sa.3eme.gt & Floors i-6 Date Received: 13/09/01 Grid Openings Analyzed;__4
Project Sample No.: M3HS-E>6-10/9-13 Average Grid Opening: 106.00 um
Air Volume ;iS26bi Total Area Analysed ; _0_^_04^0_^mm2
Filter T’/te: MCE 25 mm diem. Pors 5 0.45 uni Analytical Sensitivity; 22.2 s/mm2 Effective Arsa: 3S5 mm2 0.3047 a/cc
FIBROUS PARTICULATES ANALYZED ^timber Observed GONCENTRffiON • Tccal Sinji Matrix Total. Struct. Filuer Air Fib: Bundles Clusters Struct, Struct > = 5um Struct..'’mm2 SCrucC/cc nam/m3
Chrysotile Asbestos 0 0 0 0 3 0.0 0.3000 0
Amphibole Asbestos 0 0 0 0 0 0.0 0. 3000 0
Ambiguous 3 3 0 0 0 0 0.0 0.3000 0
Total asbestos iincludes awbrgucus structures) 0 0 0.0 0.3000 0 Non-Asfcestos 0 0 0 0 0 0 0.0 0.aooo N/.A No Identi-i car 1nn 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 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 TSM method. This laboratory is in compliance with the quality specified for the method.
Analyzed by: Repcrr Reviewed by:
Marek Pevsakhov Michael A. Gorycki, Ph.D. Director of Electron Microscopy
CITY_21MC100_003266951
NYC-WTC_000200205
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NYC-WTC_000200205Source: NYC Law Department, mirrored locally
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