NYC-WTC_000201827

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1840') Lab Group #: 6939 Filter Type / Filter .Area: MCE 385 mnV Lab Sample 16 Grid Opening Size: 0.01124 - Client Sample #: 16 Area Examined: 6.04496 mm- GRID BOX: Magnification: 20,000 f GRID ID: Accelerating Voltage: 100 i<c\ # Grid Openings: 4 Analysis Date: 3/5/02 O'

Analysis Performed By: MARK PEYSAKHOV

GO, Structure: J Structure Type, Length ID of Structure N or EDS , ■(Ndnadb No F B I C M >=05 u Chrys ( Arnptiibole Nonasb Ambig/ND No Goord <5u Elements) I >

i <5-^^ J.C—

, Struct =■ > 0.-51.1 > 5:1 Aspect Ratio Grid acceptance: 2 9= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification Criteria observed <10% particulate coverage >50% coverage ate least 20 unlolded or overlapped grid squares <5% F B C M >5|J i I i f.i i9= EDS soectrum conforming to laboratory holes or opaque areas . I identification criteria observed Chrysotile AMPHIBOLES Amphibole F = Single -iber ,, ■ Amosite B = Bundle (<3 fibers <', fiber diameter apart Crocidolite Ambiguous ClCluster (>3 Intersections) ■ Anthophyllite Non-Asbestos Trerriolite M = Matrix f f , Non-Identified Actinolite 1 NSD.^ No Structures Cetected

CITY_21MC100_003269196

NYC-WTC_000201827