NYC-WTC_000208343

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 8759 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 6 Grid Opening Size: 0.01124

Client Sample #: 06 Area Examined: 0.04496 mm’

GRIP BOX: CMCC. Magnification: 20,000 GRID ID: Acceleratinjr Voltage: 100 KeV Grid Openings: 4 Analysis Date: 8/25/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure i Structu-e Type i Length ID of Structure Nor v EDS (Nonadb I No F B C M ! >=05 P >=5(J Chrys Amphibole Nonasb Ambig/ND Elements) No Coord i <5g

A eft F=-

Struct = > 0.5g > 5:1 Aspect Ratio Grid acceptance: Positive diffraction pattern properties conforming to *50% undissolved filter, overlapped or folded Totals ' laboratory identification criteria --------- obsenzed <10% particulate coverage >50% coverage ate

N- EDS spectrum conforming to laboratory least 20 unfolded or overlapped grid squares <5% holes or opaque areas F B c M >5u identification criteria observed Chryciotile AMPHIBOLES Amphibole F ; Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambit uous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Iden;ified Actinolite NSD = No Structures Detected

CITY_21MC100_003021678

NYC-WTC_000208343