NYC-WTC_000202847

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: ATC Volume (liters): 3600 Lab Group #: 9035 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 36 Grid Opening Size: 0.01124

Client Sample #: 36 Area Examined: 0.24728 mm^

GRID BOX: ZYtY Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 22 Analysis Date: 10/29/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of structure Nor 9 EDS (Nonadb No F B C M >=05 u :>-5|J Chrys Amphibole Nonasb Ambig/NO No Coord <5|J Elements)

w 36^X1 II

6 fl ■7 ff I II If h kJTTL /I !

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............ L <11 '' Photo No. (from 1 in 5 ascestos containing samples) I i Grid acceptance: Struct = > 0.5u > 5:1 Aspect Ratio <50% undissolvea filter, overlapped or 'elded Totals V- Positive diffraction pattern properties conforming to <10% paniculate coverage >50% coverage ate laooratory identification entena observed least 20 unfolded or overlapped grid squares <5% F I B j C i M I >5u holes or opaque areas N= EDS spectrum conforming to iaboraten/ Chrysotile I i i I identificapon critena observed AMPHIBOLES Amphibole ) F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter aoart Crocidolite Ambiguous I C = Cluster (>3 intersections) Anthophyllite I Son-Asbestos I Tremolite W = Matrix Actinolite I Non-Identified j NSC = No Structures Detected

CITY_21MC1OO_OO3O69347

NYC-WTC_000202882