NYC-WTC_000198459

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters); 0 Lab Group #: 7924 Filter Type / Filter Area: MCE 385 mm^ Lab Sample#: 8 Grid Opening Size: 0.01124

Client Sample #: 08 Area Examined; 0.04496 mm^

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/1/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Stnjcture NorN EDS No (Nonadb F B C M >=05 p >=5p Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements)

Struct = > 0.5g > 5.-1 Aspect Ratio Grid acceptance: ^= Positive diffraction pattern properties conforming to <50% unsolved filter, overlap^ or folded Totals laboratory identification criteria obseived <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5p '/= EOS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile ! AMPHIBOLY Amphibole F = Single Fiber ! Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersecti'oris) ( Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC100_003030124

NYC-WTC_000198459