NYC-WTC_000213290

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: WC BOE Volume (liters): 1899 Lab Group #: 6015 Filter Tvpe / Filter Area: MCE 385 mm- Lab Sample #: 18 Grid Opening Size: 0'01124 Client Sample #: 18 Area Examined: 0.04496 mm-

GRID BOX: Magnification: 20,000 GRIDED: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 12/1/01

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or EDS No (Nonadb F B C M >=0571 i>=5|j Chrys Amphibole Nonasb Ambig/ND No Coord <5u Elements)

' 7 7 6/

Struct = > 0.5u .>5:1 Aspect Ratio Grid acceptance: Positive diffraction pattern properties conforming to <50% undissoived filter, overlapped or folded Totals Iaborato7 identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or oveifapped grid squares <5% F B C M ■ >5u '/= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Clirysotile : AMPHIBOLES Amphibole F = Single Fiber 1 Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous I

C = Cluster (>3 Intersections) Anthophyllite Tremolite Non-Asbestos i M = Matrix Actinolite Non-Identified NSD = No Structures Detected

CITY_21MC100_000462030 NYC-WTC_000213290