NYC-WTC_000218069

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 6852 Filter Type / Filter Ai ea: MCE . Lab Sample #: lO Grid Opening Size. 0.01124

Client Sample #: 10 Area Examined. 0,04496 mrn-

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 .Analysis Date: 2'2V02

Analysis Performed By: ROMAN PEYSAKHOV

GO Structure Structure Type Length ID of Structure N or v EDS No >=05 p : •=5|j Amphibole Nonasb i Ambio/ND (Nonadb F B C M Chrys Elements) No Coord <5p i 7~~W -4 ■ 3ZZS3 4 c/j — 44 4 I

i

Struct = >0 5(1 >5:1 Aspect Ratio Grid acceptefice; 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 unfolded or overlapped grid squares <5% B C M ; - ______________ i F EOS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile I amphiboly" Amphibole j I F = Single Fiiser Amosite Ambiguous I f i T 3 = Bundle {<3 fibers <1 fiber diameter apart Crocidolite C = Cluster i>3 Intersections) Anthopfiyllite Non-Asbestos j T remolite M = Matrix Actinolite i Non-Identified ' NSD = No Structures Delected

CITY_21MC100_000465833 NYC-WTC_0002 18069