NYC-WTC_000219601

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name; NYC BOE Volume (liters): 1840 Lab Group #: 7000 Filter Type / Filter Area: MCE 385 mnr Lab Sample #: 17 Grid Opening Size: 0.01124

Client Sample #: Area Examined: 0.04496 mm-

GRID BOX: Ma»nitication: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/9/02

Analysis Performed By: _____ tx/__________ ipp ROMAN PEYSAKHOV

GO Structure Structure Type Length IC of .Structure N or V cOS No >=05 p Amphibole ' Nonasb Ambig/ND (Noradb F B C M >-5)j Chrys No Coord <5p Elemenis)

I

I Struct^ II .'ll > 5:1 Aspect Ratio Grid acceptance, 7= Positive diffraction pattern properties conforming to <50% undissolved tiller, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfoided or overlapped gnd squares <5% y= EDS spectrum conforming to laboratory holes or opaque areas __ P B i C p1 ■ >ci

identification criteria observed Chiysotile i AMPHIBOLES F = Single Fiber Ampiiibole I ! Amosite 8 = Bunale r<3 fibers <1 fiber diameter apart Crocidolite Ambmuous i I C = Cluster (>3 Intersections) Anthophyllite >Jon-Ashestos Tremolite M = Matrix Non-ldeniified i Actinolite NSD = No Structures Detected

CITY_21MC:i00_000468081 NYC-WTC_000219601