NYC-WTC_000223664

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1928 Lab Group #: 7358 Filter Type / Filter .Area: MCE 385 mnr’ Lab Sample 6 GridO£ening_Si^ 0 01124

Client Sample #: 06 ■Area Examined: 0 04496 mm-

GRID BOX: ■Magnification: 20.000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 .Analysis Date: 4 8 02

■Analysis Performed By: MARK PEYSAKHOV

GO Structure Structure Type Length i ID of structure \ or v Acnacb No F B C M >=05 u >=5(j i ^rys Amphibole Nonaso I Amcig/ND No Coord <5p Elements;

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1 t I T

Struct = > 0.5h > 5:1 .Aspect Ratio Gnd acceptance: V = Posifive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification critena observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped gnd squares <5% [ F 1 B C M ■j= EDS spectrum conforming to laboratory holes or opaque areas laeniificalion criteria observed Chrvsotile ! ■A.MPHIBOLES .Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apar Crocidolite .Ambiguous ' C = Cluster (>3 Intersections) Anthophyllite \on-Asbestos Tremolite M : Matrix Actinolite Non-Identified i !v20 = No Structures Delected

CITY_21MC100_002919708

NYC-WTC_000223664