NYC-WTC_000219508

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1808 Lab Group #: 6898 Filter Type / Filter Area: MCE 3S5 mm- Lab Sample #: 15 Grid Opening Size: 0.01 124

Client Sample #: 17 Area Examined: 0.04496 mm-

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/3/02

Analysis Performed By: ROMAN PEYSAKHOV

GO Structure Structure Type Length ID of Structure N or v EDS No (Nonadt F B C >=05 M >=5)j Chrys Amphibole Nonasb Ambg/ND No Coord <5p Elements)

ZZSX -JI// __ 4__ 519

Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance: >1= Posiflve diffraction pattern properties conforming to "50% undissolved filter, overtapped or fodec Totals laboratory identification criteria observed ( b* M *^ *^ *« • afU M a* it AM <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B c I M ; >5i; V = EDS spectrum conforming to laboratory tides or opaque areas identification criteria observed Chrysotile i AMPHIBOLES Amphibole i F = Single Fiber Amosite Ambiguous j B = Bundle (<3 fibers <1 liber oiameter apart Crocidolite C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos T remolite M = Matnx Non-Identified Actinolite NSD = No Structures Detected

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