NYC-WTC_000229945

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1944 Lab Group #: 7102 Filter Type / Filter .Area: MCE 385 mm’ LabSanwle^ 8 Grid Opening Size: 0.01124

Client Sample #: 8 Area Examined: 0.04496

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/16/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. ■ structure Structure Type Length ID of Structure N or \ EDS (Nonadb No F B C M >=05 p : Chrys Amphibole Nonasb Ambig/ND 'No Coord Elements) <5p vVa- -4— 17^-------

Struct = > 0.5(2 .> 5:1 Aspect Ratio Grid acceptance:

.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 >5m '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) I Anthophyllite Non-Asbestos ‘ Tremolite M = Matrix Non-ldentified ; Actinoiite NSD = No Structures Detected

CONFIDENTIAL, CITY_21MC100_003388514 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000229945