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NYC-WTC_000196550

Label derived from the City's folder field. The City does not supply document titles.NYC-WTC_000196550
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NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: ATC Volume (liters): 1936 Lab Group #: 8837 Filter Type / Filter Area: MCE 385 mm2 Lab' Sample #: 2 Grid Opening Size: 001124 Client Sample #: 02 Area Examined: 0 04496 mm^ GRID BOX: /W Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 9/15/02

Analysis Performed By: ROMAN PEYSAKHOV

GO Structure Structure Type Length ID of Structure N or v EDS No (Nonadb F B C M >=05 p >=5(j Chrys Amphibole Nonasb Ambig/NO Elements) No' Coord <5m

73^ x Wl k

ff! ------

Struct = > 0 5g >5 I Aspect Ratio Gnd acceptance '/= Positive diffraction pattern properties conforming to <50% undissoh/ed filter, overlapped or folded Totals laboratory identification catena observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped gnd squares <5% F B C M >5p •/= EDS spectrum conforming to laboratory holes or opaque areas identification cntena observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-ldentified Actinolite NSD = No Structures Detected

CITY_21MC100_0 03041662

NYC-WTC_000196550

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NYC-WTC_000196550Source: NYC Law Department, mirrored locally

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Technical data sheet recording transmission electron microscopy analysis of an air sample for asbestos collected on September 15, 2002.

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