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TEM Asbestos air sample results, NYC BOE, Aug 2002

Machine-extracted title · confidence 90%

Laboratory report documenting transmission electron microscopy analysis of an air sample collected by the NYC Board of Education.

NYC-WTC_000175467
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Scanned page image, NYC-WTC_000175467
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OCR status: ok · source: pdftotext

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name NYC BOE Volume (liters) 195 2 Lab Group # 8739 Filter Type / Filter Area MCE 385 mm Lab Sample # 16 Grid Opening Size 0 01124 Client Sample # 16 Area Examined 0 04496 mm^ GRIP BOX GRID ID # Grid Openings "M3 4 Magnification Accelerating Voltage Analysis Date 20 000 100 KeV 8/23/02

Analysis Perlormed By ROMAN PEYSAKHOV

GO Structure Structure Type Length ID of Structure NorT EDS No (Nonadb F B C M 05p : 5p Chrys Amphibole Nonasb Amb g/ND r 0 Coord Elements) 5p

¥ /4S- </ /{

Struct = > 0 5(1 >5 I Aspect Ratio Gnd acceptance A Positive diffracbon pattern properties conforming to '"0 / undissolved niter overtapped or folded Totals laboratory identification entena observed 10/ particulate coverage 50/coverage ate least 20 unfolded or overlapped gnd squares 5 / F B C M 5(J 'J EDS spectrum conforming to laboratory holes or opaque areas identifcation cr tena observed Chrysotile AMPHIBOLES Amphibole F S ngle Fiber Amosite B Bundle ( 3 fibers 1 fber d ameter apart Crocidolite Ambiguous C Cluster ( 3 Intersections) Anthophyllite Non Asbestos Tremolite M Matrix Non Identified Actinolite NSD No Structures Detected

CONFIDENTIAL, CITY_21MC100_003431153 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000175467

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NYC-WTC_000175467Source: NYC Law Department, mirrored locally

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