NYC-WTC_000229371

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1832 Lab Group ff; 8242 Filter Type / Filter Area: MCE 385 mm" Lab Sample #; 13 Grid Opening Size: 0.01124 Client Sample #: 15 Area Examined: 0.04496 mm" GRIP BOX: Magnification.' 20,000 GRID ID; Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/23/02

Analysis Performed By; MARK PEYSAKHOV

GO. Structure Structure Type :, Length IDofStrudUfe Nor V EDS No (Noiadb F B C M >»05y ■* • >=5p ’ Chrys Amphbcte Nonasb Antig/ND No Coord <5|J Eierrwits)

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Struct « > 0.5ti > 5:1 Aspect RaHo Grid accf-planca; ■i- Positive difiractiwi pattern properfim tanfoming to Tot^ laboranr^ idefitification critaita observed. ■* <10% pan, dilate coverage >S0%coverage ale least 20 ri! 'ted or oveiiapped giid squama <5% F B C M >5VJ Vs£DSs(»«nJm confemwtgtoteboratorir holes or .. .US areas identifkaScn criteria observed Chrysotile [ AMPItIBOLES I Amphibole F = Single Fiber i A‘:;osite S = Bundle (<3 fibers <1 fiber dramelsr apart I Cri.vidoUlB Ambiguous C = Cluster (>3 Intersesllonsl ' Alli' cjjtlymte Non-Asbestos Ti-iTiotite M= Matra ■' A nr?|ite Non-Identificd NSD = No Slructums Detected

CITY_21MC100_002902458

NYC-WTC_000229371