NYC-WTC_000207918

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NV^C BOE Volume (liters): 1920 Lab Group #: 9205 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 9 Grid Opening Size: 0.01124 Client Sample #: 04 Area Examined: 0.04496 mm- GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 12/23/200

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure n or V EDS No (Nonadb F B C M >=5p Chrys Amphibole Nonasb Ambig/ND Elemenis) No Coord <5|J

I T I I

Fhoto No. ifrom 1 in a asbestos containing samples) Z Gnd acceptance Struct = > 0 5u > 5;1 Aspect Ratio undi=solved filter, ovenapped or folded Totals -/'= Positive diffraction pattern properties conforming to <10% particulate coverage >50% coverage ate laooratory identification catena observed least 20 unfolded or overlappea grid squares >:u <5% holes or opaque areas F B C M v'= EDS spectrum conforming to laboratory Chrysotile laentification criteria observed i amphiboles) Amphibole F = Single Fiber Amosite 3 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Tremolite Non-Asbestos M = Matrix Actinolite Non-ldentified NSC = No Structures Oetectec

CITY_21MC100_003017183

NYC-WTC_000207918