NYC-WTC_000219170

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: WC BOE yolume_(liters)2 1840 Lab Group #: 7448 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 3 Grid Opening Size: 0.01124

Client Sample 05 ____ Area Examined: 0.04496 mm’

GRID BOX: Magnification: 20,000 GRID IP: '2^ Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 4/17/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or y EDS No (Nonadb ■ F B C M >=05 p Chrys Amphibole Nonasb Ambig/ND Coord <5p Elements) yir A9 -A/__ —U__

Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance: V- Positive diffraction pattern properties conforming to <50% undissolved filler, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ale least 20 unfolded or overlapped grid squares <5% p- B C M >5|J EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile . AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos M = Matrix Tremolite Actinolite Non-Identified NSD = No Structures Detected

CITY_21MC100_002879430

NYC-WTC_000219170