NYC-WTC_000200666

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count S H Client Name: NYC BOE ! ' (liters): 1814.5 Lab Group #: -8243 Filter Tv|i i r Area: MCE 385 Lab SajnBle^ 14 Grill _ ;ig Size: 0.01124 Client Sample #: 14 'A/ ' (mined: 0.04496 mm^

GRID BOX: i Ication: .20,000 GRID ID: - Accelci■ ; pd Voltage: 100 KeV \ # Grid Openings: 4 pisDate; 6/23/02

Analysis Performed By: ippipp; ; MARKPEYSAKHOV

GO. Structure Structure Type Length 'Vire Nor A EDS (Nonadb ' No F B C M >=05 p i>=5p Chrys Amp:' ionasb Ambig/ND No Coord <5m Elements)

C'-'

P- Struct = > O.Sp > 5: L Aspect Ratio .; . P Grid acceptance; V .3 V= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped dr folded Totals 'f laboratory identification criteria observed <10% particulate coverage >50%'coyerage ate least 20 unfolded or overlapped grid squares <5% F B C M >5p 'pP ''p ’/= EDS spectrum conforming to faborato^ : holes or opaque areas PPdentification criteria observed; . ' p / Pile ' ampmibol.es Ie F = Single Fiber Amosite VIS i 'B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite ’ ' C = Cluster (>3 Intersections) ; Anthophyllite '.os : Tremolite p M = Matrix 1',: I iPcd Actinolite NSD = No Structures Defected

NYC-WTC_000200679