NYC-WTC_000196948

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client xName: NYC BOE Volume (liters): 1824 Lab Group #: 6932 Filter Type / Filter Area: MCE 385 rnm- Lab Sample #: J Grid Opening Size: 0,01124

Client Sample #: 05 Area Examined: 0.04496 mm- GRID BOX: 2/2- Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/4/02

Analysis Performed Ry: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or C EDS No A L. ,.,rA (Nonadb F B C M >=5pi Chrys Amphibole Nonasb Ambig/ND ' No Coord <5u Elements)

1 A M-

1—r H t-

Struct > 0,5u > 5:1 Aspect Ratio Grid accepiance

V = Positive diffraction pattern properties conforming to <50“'o undissolved filter, overlapped or folded Totals iacoraton/ identification criteria opserved <10% particulate coverage >50% coverage ate least 20 urfoloed cr overlapped grid squares <5% rp I B C I M >5u N- EDSspearum conforming to laboratory holes or opaque areas ____________ I_____ I_____ _____ I_____ _____ Identification criteria ooserveo Chrysotile ’I AMPHIBOLES Amp 111 bote F = Single Fiber Amosite B = Bundle i<3 fbers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Noil-Asbestos Tremolite M = Matrix i Non-ldentified i Actinolite NSD = No Structures Detected

CITY_21MC100_003044266

NYC-WTC_000196948