NYC-WTC_000219289

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE \Oii:!!ie (liters): 1808 Lab Group #: 7538 Filter Type E'ter Area: MCE 385 mm^ Lab Sample #: !5 GrilLILii. fling Size: 0.01124 Client Sample #: 17 Area \ainined: 0.04496 mm^ GRID BOX: -s’-SIS AI ■!■ lit'ication: 20,000 GRID ID: Accelei atj-.g \ oltage: 100 KeV # Grid Openings: 4 AiiaivsisDate: 4/25/02

Analysis Performed By; MARK PEYSAKHOV

GO. Structure Structure Type Length ir ■f . "ucture N or EDS No (Nonadb F B ; C I M >=05 M >=5p Chrys Amphit,. r.cnasb Ambig/ND No Coord <5U Elements)

Struct = 0.5p >5:1 .Aspect Ratio G'lC acceptance:

i/= Positive diffraction pattern properties conforming to <5C iindlssolved filter, overlapped or folded Totals laboratory identification criteria observed <10 ' o particulate coverage >50% coverage ate leas. 20 unfolded or overlapped grid squares <5% F B C M >5p \/= EDS spectrum conforming to laboratory 11! if ar opaque areas identification criteria observed ' -DthC ■ IPHIBOLES hl F = Single Fiber .Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite C = Cluster ?? Intersections) -.lihoptiyllite :\g: “remolite M = Matrix Actinolite .ikj NSD = No Structures Detected

CITY_21MC1OO_OO2879633

NYC-WTC_000219289