NYC-WTC_000190154

NYC 9/11 Public Portal Document

Client ISame: N2 C BOE Volume t litersj iSoG Lab Group tt. 0831 Filter Type / Filter Area- Grid Opening Size. MCE 0 0112-1 . J 1 Lab Sample 6 Client Sample #: T09 Area Examined: (101406 mm-

GRID BOX: Magnification. 20 000 GRID ID: Accelerating Voltage: 100 KeV # Gnd Openings: 4 Analysis Date. 2-25.02

Analysis Performed By: MARK PEYSAKHOV

GO Structure । Structure Type Length ID of Structure Nor EDS No (Nonadb F B C M >=05 u Chrys Amphibole Nonasb Ambig/ND No Coord <5u Elememsl

Struct = >0 5p >5 1 Aspect Ratio Gnd acceptance Positive diffraction pattern properties conforming to undissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F i B C M >5|J EDS spectrum conforming to laboratory holes or opaque areas Identification criteria observed Chiysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers < 1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos | M = Matrix Tremolite Actinolite Non-Identified NSD = No Structures Detected

CITY_21MC100_003088679

NYC-WTC_000190154