NYC-WTC_000210623

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: ATC Volume (liters): 1300 Lab Group #: 5994 Filter Tvpe / Filter Area: MCE 385 mm- Lab Sample #: 24 Grid Opening Size: 0.01124 Client Sample #: 24 Area Examined: 0.06744 mm- GRID BOX: Magnification: 201she GRIDED: ■Accelerating Voltage: 100 KeV # Grid Openings: 6 Analysis Date: 11/29/01

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type I Length ID of Stnjcture N or y EDS No >05y I >=5u Nonasb (Nonadb F I B C M Chrys ' Ampniboie Ambig/ND Elemenls] No Coord <5y I I 1 I - ^77 T I T I “zzrrz r I I

I

J' — — I T

I I I I rrn I I T T 7 I T I

I I I I r ! i i ' ! I Struct = > 0.5(1 _> 5.1 Aspect Ratio Gnd acceptance: N’ Posibve diffraction pattern properties conionrang to <50% undissolved fater, overlapped or folded Totals laboratory identification cntena observed <10% paniculate coverage >50% coverage ate least 20 unfolded or overlapped gnd squares <5% F B C M >5y i >/= EDS spectrum confonning to laboratory holes or opaque areas Identification cntena observed Chrysotile I AMPHIBOLES Amphibole F = Single Fiber Amosite B ’ Bundle (<3 fibeis <1 fiber diameter apart Crocidolite Ambiguous C - Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matra Non-Idcntificd Actinolite NSD = No Structures Delected

CITY_DEP_WORBY_CANNATA_SUBP_000002627

NYC-WTC_000210623