NYC-WTC_000218304

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 6928 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 15 Grid Opening Size: 0.01124

Client Sample #: 15 Area Examined: 0.04496 mm-

GRID BOX: Magnification: 20.000 GRID ID: .Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3-4/02

Analysis Performed By: ROMAN PEYSAKHOV

GO Structure Structure Type Length iu of Structure N or \ i EDS ~ No^’ >=05 p T~—C---- r—?-—T|- I (Nonaob F B C M >=5iJ Chrys AnphiDcle Nonasb । A.mcia/ND i I I ZA No Coord <5u : Cements;

CW 71722? Q a VJ “7

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Struct = ■- 0.5p > 5:1 Aspect Ratio Grid acceptance: '/ = Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals iaboraror/ identification criteria observed <10% parficulale coverage >50% coverage ate least 20 unlolded or overlapped gnd squares <5% f i I" ! B I C I M v'= EDS spectrum conforming to laboratory holes or opaque areas identification cnteria observed Chrvsotile i---- — AMPHIBOLES Amphibole i------- F - Single Fiber Amosite 6 = Bundle (<3 fibers <1 fiber diameter apart Crocirdolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matnr. Actinolite Non-idemified j NSO = No Structures Oetected

CITY_21MC100_000466262 NYC-WTC_0002 18304