NYC-WTC_000208272

NYC 9/11 Public Portal Document

T IM Asbes10s (ai r) Co 11 IIt Sheet Client Name: NYC BOE V olume (liters): 1928 Lab Group #: 8828 Filter Type / Filter Area: MCE 385 mnr Lab Sample #: 8 Grid Opening Size: 0.01124

Client Sample #: 08 Area Examined: 0.04496 mnr

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 9/10/02

Analysis Perftirmed By: MARK PEYSAKHOV

GO Structure i Structu'S Type Length ID of Structure Nor 0---------:------- iNonadb No >=C5 u =5)4 i Chrys T Emctiibole Nonasb , Amoiq/ND i No Coord <5p I Elements 1

— Ji •r^

i

Struct ■ 6 5Li -54 Aspect Ratio Grid acceptance

\ ; Positive diffraction pattern properties conform ig to <50% jndissoived hie- cveriacoed or ioiaec Totals <' 05b banicuiate coverage >50% coverage aie iaborator/ identification criteria observed east 50 unfolded or cveriaoceo gria sauares <554 F B C I M = cDS speefun confotming to laboratory riOies or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole 'F Single Fiber Amosite S = Bundle ;<3 fibers <1 liber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite i Non-Identified i NSD = No Structures Delected

CITY_21MC100_003021298

NYC-WTC_000208272