NYC-WTC_000226069

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: KYC BOE Volume (liters): 1952 Lab Group #: 6309 Filter Type / Filter Area: MCE 385’mm’ Lab Sample #: 6 Grid Opening Size: 0.01124 Client Sample #: 6 Area Examined: 0.04496 mm’ GRID BOX: Magnification: ' 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 1/12/02

Analysis Performed By: mark PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or 'Z EDS No ■ (Nonadb F B C M >=05 p Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements)

Struct = > 0.5 p _> 5; 1 A,spect Ratio Grid acceptance;- '/= Positive diffraction pattern properties conforming to <50% undissolved filter, overtapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ale least 20 unfolded or overlapped grid squares <5% F B C M >5(J' EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed 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 M = Matrix Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC100_000622932 NYC-WTC_000226069