NYC-WTC_000201914

NYC 9/11 Public Portal Document

TEIVt Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1840 Lab Group #: 6685 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 14 Grid Opening Size: 0.01124

Client Sample #: 14 Area Examined: 0.04496 mm"

GRID BOX: Magnification: 20,000 GRIDID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 2/15/02'

Analysis Performed By: ' ROMAN .PEYSAKHOV

- GO, Structure Structure Type . Length ID of Structure N.'or / . EDS - (Nonadb No F B C M . >=05 u I Ghrys Amphibole Nonasb Ambig/ND No Coord- <5tJ . Elements)

f-T I Nfe-- A

Struct = > 0.5g >5:1 Aspect Ratio Grid acceptance: A Positive diffraction pattern progenies conforming .to <50% URdissolved filter, overlapped or folded Totals laboratory identification criteria obserred <10% particiiiate coverage >50% coverage ate leas! 20 unfolded or overlapped grid squares <5% F ! B C M >5p V- EDSspectrum conforming to laboratory holes or opaque areas identification criteria observed Clu'ysotile ■

AMPHIBOLES Amphibole - = Singe Fiber Amosite 3 < Spndle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = SluEter (>3 Intersections; ' Anthcphyllite Non-Asbestos Tremolite M = Matrix Actinolite NoriJdentified NSD = No Structures Detected

CITY_21MC100_003269584

NYC-WTC_000201914