NYC-WTC_000202467

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (titers): 1920 I.ab Group #: 9089 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 2 Grid Opening Size: 0.01124

Client Sample #: 02 Area Examined: 0.04496

GRIDBOX: /iM- Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV ‘I # Grid Openings: 4 Analysis Date: ll/H/02

Analysis Performed By: ROMAN PEYSAKHOV

; GO. Structure Structure Type Length ID of Structure N or N EDS (Nonada No F B C M >=05 p :>=5lJ Chrys Amphibole Nonasb Ambig/ND No Coord Elements) <5p 3Z- ,/ py g . a

ij 1

Photo No, (from 1 n 5 asbestos containing samples) Grid acceptance: Struct = > 0.51J .> 5:1 .Aspect Ratio <50% undissolved filter, overlapped or folded Totals Positive diffraction petfern properties conforming to <10% particuiate coverage ^50% coverage ate laboratory identification criteria observed least 20 unfolded or overlapped grid squares <5% F B C M >5(J holes or opaque areas EDS spectrum conforming to iabcratory Chrysotile identification criteria observed ■AMPHIBOLES j Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter aoart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC100_003272826

NYC-WTC_000202467