NYC-WTC_000201595

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYGBOE Volume fliters): 1840 Lab Group #: 7521 Filter Type / Filter Area: MCE 385 mm’ Lab Sample #: 5 Grid Opening Size: 0.01124

Cliesi^amnleJi 05 Area Examined: 0.04496 mm^

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 4/24/02

Analysis Performed By: ROMAN PEYSAKI-IOV

■ GO. I structure Structure Type Length fD of Structure N or 7 EDS (Nonadb. ! No F B C >=05 u '=5|J Chrys Amphibole, i Nonasb | Ambig/ND No Coord <5u Etements) ' ■

7^^ 4 A-? if

-J__ -H— /X — I./

i . Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance; 7= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate

7= EDS spectrum conforming to laboratory least 20 unfolded or overlapped grid squares <5% holes or opaque areas F ( B c mJ >5p identification criteria observed Clirysotile s amphiboly Amphibole F = Single Fiber Amosite ; B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite i Ainbiguous C = Cluster |>3 Intersections) Anthophyllite ' Non-Asbestos Tremolite M = Matrix Actinolite Non-Identi fieri NSD = No Structures Detected

NYC-WTC_000201599