NYC-WTC_000199428

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE X'olume (liters): 1920 Lab^GroupjE S760 Filter Tx pe / Filter .Area: MCE 385 mm- Lab Sample #: 15 Grid Opening Size: 0.0 i 124

Client Sample 15 .Area Examined: 0.04496 rnm- GRID BOX: Magnilication: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 8/25/02

Analysis Performed By: ROMAN PEYSAKHOV

. GO. structure Structure Type Length ID of Structure Nor EDS (Nonadb No F B C M >=05 p Chrys Amphibole Nonasb Ambig/ND No Coord Elements) <5p />

32

.'’I

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

9= Positive diffraction pattern properties conforming to <50% undissolved fitter, overlapped or folded Totals <10% particulate coverage >50% coverage ate laboratory identification criteria observed 9= EDS spectrum conforming to laboratory least 20 unfolded or overlapped grid squares <5% holes or opaque areas _____ P Bl C 1 M I >5u Identification criteria observed Chrysotile ! AMPHIBOLES Amphibole , F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter aparl Crocidolite ' Ambiguous —J,... C =-Clusier (>2 intersections) Anthophyllite Non-Asbestos , Tremolite M = Matrix Actinolite * Non-Identified , NSD = No Structures Detected

CITY_21MC100_0 03033933

NYC-WTC_000199428