NYC-WTC_000228805

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1800 Lab Group t).‘ 7664 Filter Type / Filter Area: MCE 385 mm" Lab Sample #: n Grid Opening Size: 0.01124

Client Sample it'. 13 Area Examined: 0.04496 mm^

GRID BOX: Magnification: 20,000 GRIDID; Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 5/7/02

Analysis Performed By MARKPEYSAKHOV

GO. Structure Structure Type Length 10 of Structure NorV EOS No (Nonadb F 0 C M >-05 p ~T >=5p Chrys Amphibqfe Nonasti AmOigZf® No Coord <5m ESemenis)

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Struct = > 0 511 > 5T Aspect Ratio Slid acceptance: ^/= Positive diffraction pattern properties conforming to ' 50% undissolv^ fitter, overfed or toWed Totals laboratofy identification criteria observed wilnrin AttnnniAf^ <10% paitalate coverage >50% coverage ate least 20 unfolded or overtappec grid squares <5% F B C M >5p V= EDS spectrum mnfcrmincj to laboratory loles or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite 3 = Bundle (<3 fibers <1 fibe' diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersectionsi Anthophyllite Non-Asbestos T remoiite M = Matrix Actinolite Non-ldentified NSD = No Structores Oeleraed

CITY_21MC100_002901719

NYC-WTC_000228805