NYC-WTC_000201440

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volnme /liters'): 1805 Lab Group #: 7406 Filter Type / Filter Area: MCE 385 Lab Sample #: 15 Grid Opening Size: 0.01124 Client Sample #: 15 Area Examined: 0.04496 mm’ GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 4/15/02 Analysis Performed By: /^/

ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or O EDS No (Nonadb F B C ! M >=05 u >=5p Chrys Amphibole Nonasb Ambig/ND Coord <5u Elements)

/A I 1 If ' A

1

Struct = > 0.5p 5:1 Aspect Ratio Grid acceptance:

y- 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 grid squares <5% F B C M >5d Y = EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chl'Ysotile j AMPHIBOLES- Amphibole F = Single Fiber I Amosite B = Bundle (<3 fibers <1 fiber diameter apart 1 Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos i Tremolite I M = Matrix Non-Identifled Actinolite NSD = No Structures Detected

NYC-WTC_000201454