NYC-WTC_000200545

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume filters): 1920 Lab Group #: 8138 Filter Type / Filter Area: MCE 3S5mm- Lab Sample #: 2 Grid Opening Size: 0.01124 Client Sample #: 02 Area Examined: 0.04496 mm^ GRID BOX- Magnification: 20,000 GRID ID: Accelerating Voltage: lOOTLeV # Grid Openings: 4 Analysis Date: ■6/T7/02- , '

Analysis Performed By: MARK PEYSAKHOV

I GO.-: Structure structure Type Length ID of structure N or \ EDS No (Nonadb F B C M >=05 M Chrys Amphibole Nonasb Ambig/ND I No I Coord <5m Elements)

Struct = > O.5p > 5:1 Aspect Ratio Grid acceptance: x/= Positive diffraction pattern properties conforming to 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 B C M >6u ■/= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile i AMPHIBOLES Amphibole F = Single Fiber Amosite B - Bundle (<3 fibers <1 fiber diameter apart Crocidolite I Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos M = Matrix Tremolite Actinolite N on-Identified NSD = No Structures Detected .. _._Lj

CITY_21MC100_011274984

NYC-WTC_000200546