NYC-WTC_000215816

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NAT BOE Volume (liters): 1928 Lab Group #: 6958 Filter Type / Filter Area: MCE 385 mm’ Lab Sample #: 15 Grid Opening Size: 0.01124

Client Sample #: 15 Area Examined: 0.04496 mm’

GRID BOX: Magnification: 20.000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/7/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure NorT EDS No (Nonadb F B C M >=05 p '=51J Chrys Amphibole Nonasb Ambig/ND Elements) No Coord <5p

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Struct = > 0.5g >5:1 Aspect Ratio Grid acceptance: <= Positive diffraction pattern properties conformino to <50% undissolved filter, overiapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5p A- 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 remolite M = Matrix Actinolite Non-Identified NSD = No Structures Detected

CITY_21MC100_002876048

NYC-WTC_000215816