NYC-WTC_000190296

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet CUent Name: NYC BOE Volume (liters): 1824 Lab Group #: 6779 Filter Type / Filter Area: MCE 385 nim- Lab Sample #: 43 Grid Opening Size: 0 01124 Client Sample #: F-43 . Area Examined: 0 04496 mm- GRID BOX: Magnification; 20,000 GRID ID: ; Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 2/22/02

Analysis Performed By: ROMAN PEYSAKHOV

GO Structure Structure Type Length ID of Structure N or V EDS No >=05 u i>=5iJ (Nonadb F B C M Chrys Amphibole Nonasb Ambig/ND _ y No Coord <5p Elements)

223 /I

3Y

Stiuct = > U 5u >5 I Aspect Ratio Gnd acceptance 9= Positive diffraction pattern properties conforming to ^'^'tissolved filter, overlapped or folded Totals laboratory identification cntena observed <10% particulate coverage >50% coverage ate least 20 unfolded orovedapped gnd squares <5% F B C M >5u EDS spectrum conforming to laboratory holes or opaque areas Identification cntena observed Chrysotile 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 Non-Identified Actinolite NSD = No Structures Detected

CITy_21MC100_003088980

NYC-WTC_000190296