NYC-WTC_000218296

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE \ olume (liters): 1920 Lab Group #: 6928 Filter Type / Filter Area: MCE 3S5 mtn- Lab Sample #: 5 Grid Opening Size: 0.01124 Client Sample #: 05 Area Examined: 0.04496 mm-

GRID BOX: Magnification: 20.000 GRIPID: Accelerating Voltage: 100 KeV # GridOpenimi^ 4 Analysis Date: 3 4^02

Analysis Performed By: -------------- ROMAN PEYSAKHOV

GO, Structure Structure Type Length ID ol Structure \ or EDS I'Nonadb No F B C M >=05 p >=5p Chrys Amptiibote Nonasb i AmoigzNC j ^0 Coord <5p Eiemenisl

21 2.

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Struct = > 0 5p -'5:1 Aspect Ratio Grid acceptance: v= Positive diffraction pattern properties conforming Io <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 F I B i C ; M i EDS spectrum conforming to laboratory holes or opaque areas Identification criiena observed Chrysotile Ii AMPHIBOLES Amphibole i F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter anal Crocidolite Ambiguous I C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos i Tremolite M = Matrix Actinolite Non-Identifted i NSO = No Structures Detected

CITY_2 IMCl 0 Ci_0 0 0 4 6 6 2 5 2 NYC-WTC_000218296