NYC-WTC_000228926

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1800 Lab Group #: 7750 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 11 Grid Opening Size: 0,01124 Client Sample #: 13 Area Examined: 0.04496 GRID BOX: Magnification: 20 000 GRID ID: 3 Accelerating Voltage: 100 KeV it Grid Openings: 4 Analysis Date: 5/15/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length lb of Structure N or y EDS No (Nonadb F bTc M >=05 p Chrys Amphibole Nonasb Ambig/ND No Coord <5m Elements)

a

Struct = > 0.5g > 5; I Aspect Ratio Grid acceptance; 'I* Positive diffraction pattern properties conforming to <50% undissolved Siter, overlapped or folded Totals laboratory identification criteria observed <10% particulate cmeragB >50% coverage ate least 2(1 unfolded orovaflappeC grid squares <5% F B C M >5u ■ V= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile amphiboles Amphibole F » Single Fiber Amosite B = Bundle (<3 fibere <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite Non-Identified NSC = No Structures Detected

CITY_21MC100_002901908

NYC-WTC_000228926