NYC-WTC_000220799

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1800 Lab Group #: 7381 Filter Type / Filter Area: MCE 385 nim- L ab Sample #: 13 Grid Opening Size: 0.01124

Client Sample #: 13 Area Examined: 0.04496 mm-

GRID BOX: Magnification: 20,000 GRID It): .23 Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 4/1 l,'02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Stnjcture N or \ ECS (Nonadb No F B C M •=5p Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements)

>

-1

Struct = > I) J|u > 5:1 .Aspect Ratio Gnd acceptance: \:= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F ejTc M i >5u - EDS spectrum conloiming ro laboratory holes or opaque areas irjenlification criteria obser/ed Chrysotile .AVIPHIBOLES Amphibole I F ’ Single Fiber 6 - Bundle j<3 fioers <1 lioerd ameter apart Amosite Crocidolite Ambiguous ) r- C := Cluster (>3 Intersections) Anthophyllite Non-Asbestos T remolite M - Matrix Non-Identified Actinolite NED = No Structures Detected

CITY_2IMCl0 0_0 0 0621773 NYC-WTC_000220799