NYC-WTC_000229396

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume Biters): 1800 Lab Group #: 8294 Filter Type / Filter Area: MCE 385 mm’ Lab Sample #: 1 Grid Opening Size: 0.0II24 Client Sample #: 03 Area Examined: 0.04496 mm’

GRID BOX: Magnification: 20 000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/26/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of structure N or 4 EDS (Nmadb No F B C M >=05 p >=5p Ctirys Amphijote Nonasb AtnttgMO No Coord Etements)

—JL—

Struct = > O.Sp > 5:1 Aspect Ratio Grid acceptance: 4 = Positive diffraction pattern properties conforming to <50% undiseolved filter, cveriapped or folded Totals laboratory identificaton criteria observed <10% partcuiata cowrage >50% coverage ate

4= EDS speetojm conforming to labofaiory least 20 unfekled or overlapped grid squares <5% holes or opaque areas F B c M >5p

idenWicatlon CTieria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite 8 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous i Anthophyllite I Non-Asbestos C = Cluster (>3 IntersecHons) Tremolite , M = Matrix Actinolite Non-Identified NSD = No Structures Detected

CITY_2IMCl00_000492104 NYC-WTC_000229396