NYC-WTC_000201969

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1840 Lah Gremp #: 7230' Filter Type / Filter Area: MCE 385 Lab Sample #: 8 Grid Opening Size: 0.01124 Client Sample #: 08 Area Examined: 0.04496 nW GRID BOX: Magnification: 20,000 GRIDED: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/27/02 -

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or \ EDS (Nonadb No F B C M >=05 |J >=5|j Chrys Amphibole Nonasb Ambig/ND yl No Coord Elements) '5m / p-z. if. 3 (f

/O

I/: L

L i'

Struct = > 0.5)1 > 5:1 .Aspect Ratio Grid acceptance: Positive diffraction pattern properties conforming to ^^0% ra^ate Totals laboretery identification criteria obsen/ed least 20 unfolded or overlapped grid squares <5% F B C M ■>5p yl- zOS spectrum conforming to laboratory boles or opaque areas identification criteria observed Chrysotile AMPHIBOLES 1 Amphibole i f =.Single Fiber 1 : Amosite B = Bundle (<3 fibers <1 fiber diameter apart f Crociidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite 1 Non-Asbestos Tremolite 1 M = Matrix - ) /-< Actinolite I Nori-Identified t NSD = No Structures Detected

CITY_21MC100_0 11275895

NYC-WTC_000201969