NYC-WTC_000227655

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1832 Lab Group #: 7321 Filter Type / Filter Area: MCE 385 mm- Lab Sample #•: 7 Grid Opening Size: 0.01124 Client Sample #: 7 ■Area Examitted: 0.0^496 mm’ GRID BOX: Magnification: 20 000 GRID ID: ' Accelerating Voltage: 100 KeV _# Grid Openings: 4 __ Analysis Date:. 4/4-02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure Nor 9 EDS No (Nonadb F B C M >=05 p Chrys Amphibole _Nona3b Ambig/ND 1 No Coord <5u Elements)

CT <334' 3

Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance: v/ = Positive diffraction pattern properties conforming to “hdissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate

-/= EDS spectrum conforming to laboratory least 20 unfolded or overlapped grid squares <5% T holes or opaque areas I F B I C M >5p identification criteria observed amphiboles' Chry.sotilf r F = Single Fiber Amosite Amphibole I B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiuuoiis C = Cluster (>3 Intersections) Anthophyllite Nitn-Asbesros M = Matrix Tremolite Actinolite :tii-!deniifietl NSD = No Structuies Detected

CITY_21MC100_002899128

NYC-WTC_000227655