NYC-WTC_000212564

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet ! C lient Name: NYC BOE Volume (liters): 1944 Lab Group #: 7749 Filter Type / FUter Area: MCE 385 mm’ Lab Sample #: I Grid Opening Size: 0.01124 (?lient Sample #: 0l Area Examined: 0.04496 mm^ GRID BOX: Magnification: 20 000 GRID ID: Accelerating Voltage: 100 KeV if Grid Openings: 4 Analysis Date: 5/15/02

Analysis Performed By: ROMAN PEYSAKHOV

GO Structure Structure Type Length ID of Structure NorV EDS (Nonadb No F B C M >=05 M >=5|j Chrys Amphibole Nonasb Ambig/ND No Coord Elements) <5m

Struct = > 0.5)1 > 5;I Aspect Ratio Grid acceptance: ■'i = Positive diffraction pattern pioperties conforming to ^^0% Totals laboratory identification criteria observed least 20 unfolded or overlapped grid squares <5% F B C M V= EDS spectrum conforming to laboratory holes or opaque areas identification criteria obsetveci Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite \il = Matrix Actinolite Non-Identified NSD = No Structures Detected

CITY_21MC1OO_OO2867164

NYC-WTC_000212564