NYC-WTC_000226389

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1840 Lab Group #: 6431 Filter Type / Filter Area: MCE 385 nW Lab Sample #: 13 ■ Grid Opening Size: 0.01124

Client Sample #: 14 Area Examined: 0.04496 mm^

GRID BOX: Magnification: 20,000 GRID ID: 3/1/4 A/ Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 1/25/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or 7 EDS (Nonadb No F B C M >-5(j Chrys Amphibole Nonasb Ambig/ND No Coord Elements) <5m

__L_ cf

Struct = > 0.5(1 >5:1 Aspect Ratio Grid acceptance:

a1= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F Bic M >5u EDS spectrum conforming to laboratory holes or opaque areas identification criteria 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 T remoiite M = Matrix Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC100_002922381

NYC-WTC_000226389