NYC-WTC_000229360

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 8229 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 16 Grid Opening Size; 0.01124

Client Sample #: 16 Area Examined: 0.04496 GRID BOX: JMl Magnification: 20,000 GRID IP: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date; 6/23/02

Analysis Performed By: ^7/ ROMAN PEYSAKHOV

GO. Structure Staicture Type Length 10 of Structure Nwv EDS No (Nonadb F B C M >=06 p\ ■ >=5m Chrys Amphbila Nonaab AmbigW Elements) Coord ■

?6£ EC Zt 2^ S—

Struct = > 0.5)1 > 5:1 Aspect Ratio Gnd acceptance: ■ \ >1 = Positive ditlraction pattern properties contonning to, <50% urxtissc^/ed fitter, overlapped Of tobed Totals laboratoiy identification criteria observed <10% particUate oKsraga >50% coverage ate least 20 unfolded gr overlapped grid squares <6% F B C >5p V= EDS spectrum conforming to laboratory holes Of opaque areas KfontiAcatirm criteria observed Chrysotile I AMPHIBOLES Amphibole F ' Single Fiber Amoeite ■ 0 : Bundfe (<3 fibers <1 frber diameter apart Crocidolite Ambiguous C e Cluster (>3 Intersections) AnthophylBte.' Non-Asbestos Tremolite i M = Matiix Actinolite ■ Non-Identified NSD = No Structures Detected

CITY_2lMC100_000492050 NYC-WTC_000229360