NYC-WTC_000229950

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1928 Lab Group #: 7102 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 13 Grid Opening Size: 0.01124

Client Sample #: 13 Area Examined: 0.04496 mm^

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

Analysis Performed By: ROMA.N PEYSAKHOV

GO. Structure Structure Type Length ID of Structure Notn EDS No (Nonadb F B C >=51J Chrys Amphibole Nonasb Ambig/ND No ! Coord <5g ■ Elements)

Struct = > 0.5g .> 5:1 Aspect Ratio Grid acceptance: 'J= 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 >5u EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite 6 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Nbn-Identified Actinolite NSD = No Structures Detected

CONFIDENTIAL, CITY_21MC100_003388519 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000229950