NYC-WTC_000228993

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Ciient Name: _NYC BOE Volume (liters): 1800 Lab Group #: 7807 Filter Tvpe / Filter Area; MCE 385 Lab Sample #: 1 Grid Opening Size: 0.01124 Client Sample #; 03 Area Examined: 0.04496 GRID BOX; Magnification: 20 000 GRID ID: Acceleratjag Voltage: 100 KeV # Grid Openings; 4 Analysis Date: 5/20/02

Analysis Performed By: /yZ ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or N EOS ,i No (Nonadb i F B C M >=05 p ■>=5p Chrys Amphibole Nonas!) Ambigj’^D No Coord <5u Elements)

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I 1

Struct « > O.Sp > S:1 Aspect Ratio Grid acceptsnee:: Positive diffraction pattern properties conforming to <50% undissolved filter, averlappsd or folded Totals iabwalwy identificafion criteria observed <10% particulate coverage >50% coverage ate ieasi 20 unfalded or overlapped grid squares <5% F B C M >5U 1= EDS spectrum conforming to laboratory holes or opaque areas identification erftena observed Chrysotile amphiboles Amphibole F = Single Fiber Amosite B = Bundle {<3 fibers <1 liber diameter apart Crocidolite Ambiguous C = Cluster I-’3 Inlerseetions) Anthophyllite Non-Asbestos 1 Tremolite i M - M3«t Actinolite Non-Identified NSD = Nd Structures Detected

CITY_21MC100_002902018

NYC-WTC_000228993