NYC-WTC_000228715

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume niters): 1800 Lab Group #: 7602 Bllter Type / Filter Area: MCE 385 mm’ Lab Sample #: 2 Grid Opening Size: 0.01124

Client Sample #: 04 Area Examined: 0.04496 mm’

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 5/1/02

Analysis Performed By: /\r ROMAN PEYSAKHOV

GO, Structure Structure Type Length ID of Structure M or V =DS i No (Ncwadb i F B C M >=0Sp >=5|J Chrys Amphibole Nonasb AmtagjNO No Coord <5p Elements) j

Z 2 i= ?/=

Struct>5.1 Aspect Ratio Grid acceptance; '1= Positive diffrachort paitern properties conforming to <5C% undissolued flltw, overtapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid spuares <5% F B C t M i >5u EOS spectrum wnforniing to laboratory holes or opaque areas rdentification criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocirjolite Ambiguous C - Cluster (>3 Intersections) Anthopriyiiits Non-Asbestos Tremolite M = Matrix Actinolite Noii'Ideniified NSD = Mo Structures Detected

CITY_21MC100_002901563

NYC-WTC_000228715