NYC-WTC_000201341

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYCBOE Volume (liters): 1840 I.ab Group #: 7360 ■ Filter Type / Filter Area: MCE 385 mtn^ Lab Sample #: 9 Grid Opening Size: 0.01124

Client Sample #: 09 Area Examined: 0.04496 nan’

GRID BOX: Magnification: 20,000 GRIPED: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 4/9/02

Analysis Performed By: MAR.K PEYSAKHOV

GO, Structure Structure Type Length ID of Structure N or 7 EDS No >=05 (J ; '=5p (Nonadb F B C Ctirys Amphibole Norasb Ambig/ND No Coord <5p Elements)

-A

I---- 1

Struct = > 0.5'1 .>5:1 .Aspect Ratio Grid acceptance: 'J= Positive diffraction pattern properties contorming to <50% urdissclved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulats coverage >50% coverage ate least 20 jnfolded or ovedapped grid squares <5% F B I C M ^1= EDS spectrum conforming to laboratory Itoles or opaque areas identification critena observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber I Amosite E - Bu.ndle {<3 fibers <1 fiber diameter apart I Crocidolite Ambiguous C = Cluster (>3 Intersections) ! Anthopnyliite Non-Asbestos Tremolite M = Matrix Non-identified Actinolite NSD = No Structures Detected

CITY_21MC100_011275650

NYC-WTC_000201349