NYC-WTC_000229402

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1800 Lab Group #: 8294 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 8 Grid Opening Size: 0.01124 Client Sample #: Area Examined: 0.04496 GRID BOX: Magnification: 20 000 GRID IP: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/26/02

Analysis Performed By: ROMAN PE YSAKHOV

GO. Structure Structure Type Length lOofStructure N or v EDS (Nonadb No F B c M >=05 p >=5tJ Chrys Amphtoote Nonasb Ambig/ND No Coord I <5p Elements)

Struct = > O.Sp >511 Aspect Ratio Grid acceptance: Positive diffraction pattern properties conforming to <50% undlssolved filter, overlapped or (oided Totals iaboratory identification criteria observed <10% particulate coverage >60% coverage ate least 20 unfold^ or overlapped grid squares <5% F B C M EDS spectrum conforming to laboratory holes or opaque areas identrfication criteria observed Chrysotile j AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections} : Anthophyllite Non-Asbestos i Tremolite M = Matrix Actinolite Non-Identified NSO = No Structures Detected

CITY_2IMCl00_000492111 NYC-WTC_000229402