NYC-WTC_000196854

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 9210 Filter Type / Filter Area: MCE 385 inm- Lab Sample #: 4 Grid Opening Size: 0,01124

Client Sample #: 06 Area Examined: 0 04496 mrn-

GRID BOX: Magnification: 20,000 GRID ID: / Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 12/26/200

Analysis Performed By: MARK PEYSAKHOV

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

cr /O'

I r ! i I i r'hoio No (from 1 in o asoestos containing sampigm - Grid acceptance Struct = > 0 Su >51 Aspect Ratio <50% undissolved filter, overlapped or folded Totals <= Positive diffraction pattern properties conforming to <10% paniculate coverage >50% coverage ate laDoratory identification critena observed least 20 unfolded oroverlaooed gnd squares <5% holes or opaque areas F B C M EDS spectrum conforming to laboratory idenlificahon critena coserved Chrysotile AMPHIBOLES i F = Single Fiber Amphibole Amosite S = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous Anthophyllite 1 C = Cluster (>3 Intersections) Non-Asbestos Tremolite M = Matrix Actinolite Non-Identified NSD = No Structures Delected

CITY_21MC100_003057935

NYC-WTC_000196854