NYC-WTC_000208264

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 8828 Filter Type / Filter Area: VICE 385 m.m- Lab Sample #: 10 Grid Opening Size: 0.C1124

Client Sample #: 10 Area Examined: 0.04496 mm-

GRID BOX: Magnification: 20.000 GRID ID: Accelerating Voltage: 100 KeV ■ SGjJtLQfieningsi 4 Analysis Date: 9/10/02

Analysis Performed By: .MARK PEYSAKHOV

GO, Structure Structure Type Length I ID of Structure N or EDS (Nonadb No F B C M >=5p I Chrys Ampniboie Nonasb i Ambici/ND No Coord Elements! <5p

—’ -J

I_____ I I I

II —I

Struct = '■ 0.5n > 5:1 .Aspect Ratio Grid acceptance:

0 = Positive diffraction pattern properties conform ng to <50% undissoivec filter, overlapped or folded Totals <10% particulate ccverace >50% coverage ate laboratory dentification criteria ooserveo least 20 unloideo or overaoped grid sguares <5% r : F i B I C pl i Au ■■1 = EDS spectrum conforming to laboratory boles or opaque areas iaentification crtteria observed Chrvsotile : AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite Non-Identified NSD = No Structures Detectec

CITY_21MC100_003021271

NYC-WTC_000208264