NYC-WTC_000193413

NYC 9/11 Public Portal Document

TEM tos (air) Count Sheet Client Name: NYC BOE Volume (liters): 2023 Lab Group #: 8241 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 6 Grid Opening Size: 0.01124

Client Sample #: 06 Area Examined: 0.04496 mm^

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/23/02

Analysis Performed By KKPEYSAKHOV

GO. Structure Structure Type j ■ngth ID of Structure N or 'J EDS {Nonadb No F B C M I >=5p Chrys Amphibole Nonasb Ambig/ND No Coord Elements)

I "T

Struct = > 0.5pi >5:1 Aspect Ratio Gric

r/= Positive diffraction pattern properties conforming to <50 . liter, overlapped or folded Totals laboratory identification criteria observed <10 ' verage >50% coverage ate leat ' overlapped grid squares <5% F B C M >5u EDS spectrum conforming to labo'atory hoi ■as identification criteria observed Chrysotile Amphibole F = Single Fiber B = Bundle (<3 fibers <1 fiber diameler apart Ambiguous C = Cluster (>3 Intersections) re Non-Asbestos M = Matrix ■ Non-Identified NSD = No Structures Oetecteo

CITY_21MC100_003094618

NYC-WTC_000193413