NYC-WTC_000229293

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name; NYC BOE Volume niters): 1824 Lab Group #: 8108 Filter Type / Filter Area: MCE 385 mm" Lab Sample 14 Grid Opening Size: 0.01124 Client Sample #; 16 Area Examined: 0.04496 mm" GRID BOX; Magnification: 20 B5E GRID IP! Accelerating Voltage: 100 KeV # Grid Openings; 4 Analysis Date: 6/15Z02

Analysis Performed By: MARK PEYSAKHOV

GO. Sfructure Structure Type Length IDofStructure Nor v EDS (Nonadb No F e C M >=05p I >=5p Chfys Amphibote Nonasb Ambig/NO Etemenb} No Coord <Sm

cr J

Struct => 0,5n >5:1 Aspect Ratro Grid acceptance: v-Positrve diffraction pattern prape.rties conforming to undss^ed rater, wrettepped ortoWed Totals iaboratory identfcation criteria otserved ' <10% paitolate coverage >50% coverage ate least 20 unfoided or overlapped grid squares <5% F B C M >5p a/s EDS spectrum conforming to tatwratory bates or opaque areas fdentificatioit criteria observed Chrysotile AMPHIBOLES Amphibole r = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous CI Cluster (>3 Sntetsecaons) Anthophyllite Non-Asbestos Tremolite M = MaW): Actinolite Non-ldentified USD = No Structures Detected

CITY_21MC1OO_OOO491881 NYC-WTC_000229293