NYC-WTC_000211072

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1840 Lab Group #: 7948 Filter Type / Filter Area: MCE 385 Lab Sample #: 2 Grid Opening Size: 0.01124

Client Sample #: 02 Area Examined: 0.04496 mm^

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/3/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure Norv EDS No (Nonadb F B C M >=05 M >=5p Chrys Amphibole Nonasb Ambig/ND No Coord <6p Elements)

y -t

I ri Struct = > 0.op >5:1 Aspect Ratio Grid acceptance: '/= Positive diffraction pattern properties conforming to <50% undissohred filter, overlapped or folded Tot^ laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5p ’/= EOS spectrum conforming to laboratory holes or opaque areas identification critena observed Chrysotile AMPHIBOLES i Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite : Non-Asbestos T remolite i M = Mainx Non-Identified Acdnolite NSD = No Structures Detected

CITY_21MC100_002863571

NYC-WTC_000211072