NYC-WTC_000228761

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume /titers): ISOO Lab Groan 7636 Filter Type / Filter Area: MCE 385 Lab Sample #: 6 Grid Opening Size: 0,01124 Client Sample #: 09 Area Examined: 0.04496 mm^ GRIP BOX: z/rF/" Magnification: 20 000 GRID IP: # Grid Openings: 4 2^ Accelerating Voltage: Analysis Date: 100 Ke V 5/4/02

Analysis Performed By; ROMAN PEYSAKHOV

GO. Structure Structure Type Length lOofSbucture N or ■/ EDS No (Nonadb F B C >=05 u >=5p Chrys Amphibole Nonasb Ambig/NO No Coord <5p Elements')

Struct = > 0.5^ >5:1 Aspect Ratio Grid acceptance: 'J- Posilive diffraction pattern properties conloiming to unCissofved filter, over^ped or folded Tot^ ________identification laporaiory ________criteria a.J- _____ observed_ <10% panculate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M ’5iJ '1= EDS specrum conforming to laboratory holes or opaque areas identificatidn criteria observed Chrysotile AMPHIBOLES ' Amphibole F = Single Fiber Amosite 8 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections} Anlhoptiyllite Non-Asbestos Tremolite M = Matrix Actinolite Non-ldentified NSD = No Slrucfures Detected

CITY_21MC100_002901639

NYC-WTC_000228761