NYC-WTC_000218066

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: WC BOE Volume (liters): 1920 Lab Group #: 6852 Filter Type / Filter Area: ■MCE 3S5 mm- Lab Sample #: 5 Grid Opening Size: 0.01124

Client Sample #: Area Examined: 0,04496 mm-

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 ■Analysis Date: 2 2S 02

Analysis Performed By: O"' ROMAN PEYSAKHOV

GO. Structure Structure Type Length IC of Structure N or v cDs No (Nonaoc F B C M >=05 p >=5jj Chrys Amphiboie Nonasb ! Ambic/ND i Element'; No Coord <5y ---------- i-------------

7 X:? //■

Struct = >0.5p >5:1 Aspect Ratio Grid acceptance: V’ 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 gnd squares <5% F i B j C j .M EOS spectrum conforming to laboratory holes or opaque areas Identification criteria observed Chrysotile AMPHIBOLES ■Amphibole F = Single Fiber Amosite Ambiguous B = Bundle (<3 Fibers <1 fiber diameter apart Crocidolite i I i C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos , Tremolite M = Matrix Actinolite Non-kientified ' NSD = No Structures Detected

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