NYC-WTC_000202031

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYCBGE Volume (liters): 1840 Lab Group #: 7146t ; Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 2 ' Grid Opening Size: 0.01124 Client Sample #: 02 Area Examined: 0;04496 mrn^ GRID BOX: Magnification: 20 000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 ' Analysis Date: 3/20/02

Analysis Performed By: I ‘ / ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or V ' EDS V No F B e M >=05 p Chrys Amphibole Nonasb . Ambig/ND (Nonadb Elements) NQ <5p

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Struct = > 0.5)j, > 5:1 Aspect Ratio Grid acceptance: V= Positive dittractlon oattern properties conforming to "^0% undissolved filter, overlapped orfoided' Totals - laboratory identification criteria absen/ed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5y EDS spectrum conforming to laboratory holes or opaque areas : identification criteria observed t Chrysotile j AMPHIBOLES 1 Amphibole F = Single Fiber Amosite B = Bundle (<5 fibers <1 fiber diameter apart Crocidolite Ambiguous Anthophyllite ! C = Cluster (>3 intersections) Non-Asbestos 1 Treraolile I IM = Matrix : 1 Non-Identified : Actinolite: ' 1 ; NSD = No Structures Detected' t t;

CITY_21MC100_011276021

NYC-WTC_000202031