NYC-WTC_000229048

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name; NYC BOE Volume (liters): 1808 Lab Group 7847 Filter Type / Filter Area: MCE 385 mm' Lab Sample ff: 14 Grid Opening Size: 0.0II24

Client Sample #: 16 Area Examined: 0.04496 mnr

GRID BOX; Magnificatioa: 20 000 GRID ID ; Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 5/23/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure ShvctureType Length IDofStnKrture N or ■J EDS No (Nonadb F 5 C M >=05 p Chrys Amphibole Nonasb AmbigWD No Coord Etements}

z. ^ZZ iTtS-

1 I Struct = > 0.5m >5:1 Aspect Ratio Giid acceptance: Positive diffraction pattern properties contomins to <50% jndissQNed filter, overtapped or folded Totals laiMraiory identification crtteria observed <10% partculate coverage >50% coverage ate least 20 unfolded or overtapped grid squares <5% F B C M >5V ’/= EDS spectrum conforming to taboratory holes or opaque aieas identification oiteria otserved Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite 8 = Bundle {<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C- Cluster (>3 Intefsedfons) Anthophyliite . Non-.\sbestos Tremolite Mattia Actinolite Non-Identified MSD = Nd Structures Detected

CITY_21MC100_002902103

NYC-WTC_000229048