NYC-WTC_000201783

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE yolumeXlitersJi 1840 Lab Group #: 7009 Filter Type / Filter Area: MCE 385 mm’ Lab Sample #: 2 Grid Opening Size: 0.01124

Client Sample #: 2 :■ Area Examined: 0.04496 mir?

GRID BOX: Magnification: 20,000 GRID ID: 5^^ Accel eratingVoltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/10/02

Analysis Performed By: ROMAN PEYSAKHOV

[ GO. Structure Structure Type Length ID of Structure N or Y - EDS (Nonadb ' No ‘ Coord No F B c M >=05 p <5p Chrys Amphibole Nonasb Ambig/ND Elements)

rr // A

Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance: -/= Positive ditfracfian pattern properties conforming to <50% uridissolved filter, overlapped or folded Totals laboratory identification criteria observed ' <10% particulate coverage >50% coverage ate

•/= EDS spectrum conforming to laboratory least 20 untoldsD or overlapped grid squares <5% F B G I M >6|j I holes Of opaque areas identification critens observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B ' Bundle {<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 intersections) ‘ Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD- No Structures Detected

CITY_21MC100_003269094

NYC-WTC_000201783