NYC-WTC_000217187

NYC 9/11 Public Portal Document

TEM Ast I SEOS (air) Count Sheet Client Name: NYC BOE Volume (liters): 1832 Lab Group #: 7892 Filter Type / Filter Area: MCE 385 mm" Lab Sample #: 16 Grid Opening Size: 0.01124 Client Sample #: 19 Area Examined: 0.04496 mm"

GRID BOX: Magnification: 20 000 GRIDID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 5/28/02

Analysis Performed By: _ b IP • IANPEYSAKHOV

GO. Structure Structure Type I’gth ID of Structure N or y EDS (Nonadb No F B C M >=5p Chrys Amphibole Nonasb Ambig/ND No ^oord Elements)

I Struct = > 0.5g > 5; 1 Aspect Ratio Grid accep' Positive diffraction pattern properties conforming to <50% und . .1 ‘titer, overlapped or folded Totals laboratory identification criteria observed <10% par ' . erage >50% coverage ate least 20 u: overlapped grid squares <5% [ F B C M >5p ^=EDS spectnjm conforming to laboratory holes or c, ■ .iS

identification criteria observed Chrysotile AMPl 1-^! Amphibole F = Single Fiber Al ■

B = Bundle (<3 fibers <1 fiber diameter apart Crc Ambiguous C = Cluster (>3 Intersections) Anil' !i;3 Non-Asbestos T-- M = Matrix Non-Identified A NSD = No Structures Detected

CITY_21MC100_000465257 NYC-WTC_000217187