NYC-WTC_000229943

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1936 Lab Group #: 7102 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 6 Grid Opening Size: 0.01124 Client Sample #: 6 Area Examined: 0.04496 mm* 13 ><'2- Magnification: GRID BOX: 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 NorY EDS No (Nonadb F B C M >=5(J Chrys Amphibole Nonasb Ambig/ND Elements) No Coord <5p

/ 1/2- 7^

Struct = > 0.5p .>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 >5p EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chiysotile AMPHIBOLY Amphibole F = Single Fiber • Amosite B = Bundle (<3 fibers <1 fioer diameter apart I Crocidolite Ambiguous C = Cluster (>3 Intersections) j Anthophyllite Non-Asbestos j Tremolite M = Matrix ' Actinolite Non-Identified NSD = No Structures Delected

CONFIDENTIAL, CITY_21MC100_003388512 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000229943