NYC-WTC_000207485

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1944 ■ Lab Group #: .. 8121 Filter Type / Filter Area: MCE 385 mnV Lab Sample #: 2 Grid Opening Size: 0;0T124

Client Sample #: 2 Area Examined: 0.04496 mm-

GRID BOX: Magnification: 2.0,000;^ GRID ID: Accelerating Voltage: too KeV ; # Grid Openings: 4 Analysis Date: ,6/15/02 ■

Analysis Performed By: ' ROMAN PEYSAKHOV

GO, Structure , Structure Type Le'ngth ID of Structure N or n/ ■ EDS ' (Nonadb ' No F B C M ^^oTp r~>=5|J Chrys Amphibole _ Nonasb . Ambig/ND >7 No Coord <5p • Elements)

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Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance: Positive diffraction pattern properties conforming to *50% undissolved filler, 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 . >5p . >/= EDS spectrum conforming Io laboratory holes or opaque areas identification criteria observed ■ Chrysotile AMPHIBOLES Amphibole, F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diarneter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC100_003015285

NYC-WTC_000207485