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NYC-WTC_000229161

Label derived from the City's folder field. The City does not supply document titles.NYC-WTC_000229161
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NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume niters): 1928 Lab Gronp #: 7938 Filter Type / Filter Area: MCE 385 Lab Sample #: 4 Grid Opening Size; 0.01124 Client Sample #: 04 Area Examined; 0.04496 GRP) BOX: Magnifkatipn; 20,000 GRID ID: Accelerating Voltage: 3 00 KeV # Grid Openings: 4 Analysis Date; 6/2/02

Analysis Performed By; MARKPEYSAKHOV

GO. Structure Structure Type Length IO of Structure N or V EDS (Naiatffl No F B C M >s05u :*=5p Chrys Amphajole Nonasb AmhgMO No Coord <Sm Elemens)

Struct = > 0,5n > 5; 1 Aspect Ratio Grid acceptance: '1~ Poihive difraclion pattern properties conforming to <50% unoissoJved fitter, overtapped a folded Totals latjoralory denlificatiofi crtetia observed <10% paniculstB coverage >50% coverage ate least 20 unfolded or overtapped gna squares <5% F B C M >5iJ Vs EDS specirum corlorming to laboratory botes or opaque areas identificatton cnleria observed ChzysotiJe AMPHIBOLES Amphibole F^Sifigte Fiber Amosite 0 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Ifitersectlons) Anthophyllite Non-Asbestos Tremotita M-Matn* Non-Idenrified Actinolite NSD = No Structures Detected

CITY_21MC100_002902331

NYC-WTC_000229161

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NYC-WTC_000229161Source: NYC Law Department, mirrored locally

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TEM Asbestos air sample results, NYC BOE, Dec 2001

NYC-WTC_000184069

Laboratory record detailing transmission electron microscopy analysis of an air sample collected from a New York City Board of Education facility in December 2001.

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