NYC-WTC_000208311

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NA/C BOE Volume (liters): 1928 Lab Group #: 8759 Filter Type / Filter Area: MCE 385 mrr? Lab Sample #: 9 Grid Opening Size: 0.01124 Client Sample #: Area Examined: 0.04496 mm- GlUD BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV #Gi'id Openings: 4 Analysis Date: 8/25/02

Analysis Peril rmed By: ROMAN PEYSAKHOV

GO, Structure Structuie Type Length ID of Structure Nor EDS No (Nonadb F B C I M >=06 p >=5p Chrys Amphibole Nonasb Ambig/ND No Coord <6m Elements) &

I

Struct = > 0.5p > 5; I Aspect Ratio Grid acceptance: G Positive diffraction pattern properties conforming to <50% undissolved filler, overlapped or folded Totals laboratory identification criteria observed <10% paniculate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5p V= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole F ■= Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite i Non-Asbestos M = Matrix I Tremolite | Actinolite i Non-Identified NSD = No Structures Detected L.

CITY_21MC100_003021631

NYC-WTC_00020831 1