NYC-WTC_000205322

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1805 Lab Group #: 9090 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 7 Grid Opening Size: 0.01124 Client Sample #: 09 Area Examined: 0.04496 mm^ GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: too KeV # Grid Openings: 4 Analysis Date: 11/11/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or V EDS No (Nonadb F B C M >=05 u >=5|j Chrys [ Amphibole Nonasb Ambig/ND No i Coord <5p Elements)

/7^

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Photo No. from 1 in 5 asbestos containing samplesl 7/ Gna acceptance; utiUCt 0.5p . 5.1 1 \aiiO <50% undissoived filter, overlapped or folded totals V = Positive diffraction pattern properties conforming to <10% particulate coverage >50% coverage ate laborator/ identification criteria observed least 20 unfolded or overtapped grid squares <5% F B C i M I >5p holes or opaque areas __ I____ I____ V= EDS spectrum conforming to laboratory Chrysotile identification criteria observed AMPHIBOLES .Amphibole F = Single Fiber Amosite B = Bundle ;<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster ;>3 intersections; Anthophyllite Non-Asbestos Tremolite H = Matrix i Non-Identifled Actinolite NSD = No Structures Detected .1.

CITY_21MC100_009261914

NYC-WTC_000205322