NYC-WTC_000229100

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1856 Lab Group #: 7885 Filter Type / Filter Area: MCE 385 Lab Sample #: 15 Grid Opening Size: 0.01124 Client Sample #: 17 Area Examined: 0.04496 mm-

GRIP BOX: Magnification: 20,000 GRIP ID: Accelerating Voltage: too KeV # Grid Openings: 4 Analysis Date: 5/27/02

Analysis Performed By; MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or sr EDS No (Monadb F B C M >-05 p I >=5p Cbrys AiTiphitiole Nonasb Ambig/ND No Coord <5p Elements)

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ZZZZZZZZT±ZZ ) Struct = > 0.5p > S. 1 Aspect Ratio Grid aaeptance; Positive diffraction pattern properties conforming to <50% undissolved filter, overtapped or folded Totals taboratory identification o-itena observed <10% particulate coverage >50% coverage ate least 20 unfolded or overtapped grid squares <5% F B C M I ’5u EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite 6 = Bundle [<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 intersections) Anthophyllite Non-Asbestos Tremolite + M = Matrix Actinolite Non-Identified 5 I NSD = HO Structures Detected

CITY_21MC100_002902200

NYC-WTC_000229100