NYC-WTC_000201770

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1840 Lab Group #: 7021 Filter Type / Filter Area: MCE 385 mm= Lab Sample #: 2 Grid Opening Size: 0.01124 Client Sample #: 02 Area Examined: 0.04496 mmA GRID BOX: Maonification: 20,000 GRIPED: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/10/02

Analysis Performed By: --------- PEYSAKHOV

GC I Structure Structure Type Length ID of Structure N or EDS ’ No (Nonadb F B C M 1 >-05p ,1 >=5p Chrys Amahibote rtonasb Ambig/ND I No i Goord <5j Elements)

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Struc; - > 0.5)1 > 5-:l Aspect Ratio Grid acceptance; ’ Positive difIraction pattern properties conforming io <50% undissolved filter, overiapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate - least 20 unfolded or overlapped grid squares <5% F B C M >5u EDS spectrum contorming to laboratory holes or opaque areas identification cnteria observeo Chrysotile ' • AMPHIBOLES ! Amphibole F F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous j C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix 1 ■ 7 1 , i ' Non-Identified I Actinolite NS D = No Structures Detected

CITY_21MC100_003269075

NYC-WTC_000201770