NYC-WTC_000225828

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1952 Lab Group #: 6208 Filter Type / Filter Area: MCE ■ 385 mm- Lab Sample #: 21 Grid Opening Size: 0.01124

Client Sample #: 21 Area Examined: 0.04496 mm-

GRID BOX: 7zY Magnification: 20,000 GRID ED: 2^ Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 12/27/01

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or V • EDS

No Coord . No F B c. M >=05 p <5p Chrys Amphibole Nonasb Ambig/ND (Nonadb Elements)

56?

Struct = > 0.5p >5:1 Aspect Ratio Grid acceptance: ^= Positive diffraction pattern properties conforming to <50% undissQlved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5u ^= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Clirysotiie AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) [ Anthophyllite j Non-Asbestos ' T remolite | M = Matrix Non-Identified Actinolite i NSD = No Structures Detected

CITY_21MC100_000622559 NYC-WTC_000225828