NYC-WTC_000203509

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: ^'YC BOE Volume (liters): 1944 Lab Group #: 9204 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 7 Grid Opening Size: 0 01124

Client Sample #: 7 Area Examined: 0 04496 mm-

GRID BOX: Magnification: 20,000 GRID ID: ZSER 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 ’/ EDS (Nonadb No F B C M •=05m Chrys Amphibole Nonasb Ambig/NO No Coord <5p Elements)

A V Al

I Ij T I

Photo No \trom 1 in s asoestos containing sampes) Gnd acceptance Struct = > 0 5(j >5.1 Aspect Ratio <50% undissolved filter, overlapped or folded Totals V- Positive diffraction oattem properties confottning lo <10% particulate coverage >50% coverage ate laboratory identification catena observed least 20 unfoloed or overlapped gno squares >5u < F B C M <5% holes or opaque areas '(= EDS speemm coniorming to laboratory icentification catena observed Chrysotile ! AMPHIBOLES^ Amphibole = = Single Foer I Amosite 2 = 3unale t<3 fibers <1 fiber aiameter apart Crocidolite Ambiguous ! Anthophyllite C = Cluster (>3 Intersecaons) Tremolite N'on-Asbestos M = Matrix Actinolite Non-Identified NSC = No Structures Cetectea

CITY_21MC100_003058352

NYC-WTC_000203509