NYC-WTC_000215778

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: WC BOE Volume (liters): 1944 Lab Group #: 6874 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 17 Grid Opening Size: 0.01124 Client Sample #: 17 Area Examined: 0.04496 mm- GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/1/02

Analysis Performed By; ROMAN PEYSAKHOV

GO, Structure Structure Type Length ID ofStructure N or v EDS No >=05 p :>=5|j (Nonadb F B C M Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements)

Struct = >0.5p >5:1 Aspect Ratio Grid acceptance:

^1= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals <10% particulate coverage >50% coverage ate laborator/ idertificatior criteria obseived 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 Cluysotile AMPHIBOLES Amphibole F = Single Fiber Amosite S = Bundle (<3 fibers <1 fiber diameier apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite . Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC1OO_OO287588O

NYC-WTC_000215794