NYC-WTC_000201832

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1840 5 Lah Group #: 6929 Filter Type / Filter Area: MCE 3-85 Lab Sample #: 4 G12ilLQjiening Si^ 0.01124 f,t Client Sample #: 04 Area Examined: 0.04496 mm"| GRID BOX: Magnification: 20,000 GRID ID: 77Z^ Accelerating Voltage: 100 KeV # Grid Openings: 4 AnalysisDate; 3/5/02,'

Analysis Performed By: ROMAN PEYSAILHOV

GO,. Structure Structure Type Length / ID of Structure N or V EDS ' AioT >=05 u —'(Nonadb-- F■ B C M '=5p Chrys Amphibols Nonasb Ambig/ND No Ooord I , <5p Elements)

if il 7.3 —----

Srriict r= >d).5u > 5:1 Aspect Ratio Grib acceptance; , Positive diffraction pattern properties conforniing to <,50% iindissoivsd filter, overlapped or folded Totals laboratory identificaticn criteria observed ' ' <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5p EDS spectrum conforming to laboratory holes or opaque areas , identification criteria observed Chrvsulile .AMPHIBOLES Amphibole F = Single Fiber I Amosite E = Eundie (<3 fibers <1 fiber diameter apart Crocidolite Ambieiious C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos M = Matrix : Tremolite Actinolite Non-Identified NSD = No Structures Detected r

CITY_21MC100_003269203

NYC-WTC_000201832