NYC-WTC_000228449

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 7295 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #; 5 Grid Opening Size: 0.01124 Client Sample #: Area Examined: 0.04496 mm/ GRID BOX : Magnification: 20,000 GRID g): Accelerating Voltage: 100 KeV Analysis Date: 4/1/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure x or v EDS I

r No I'Nor.adc : F B C M >’05 p >=5p Chrys Amphibole Nonasb Amoig/NO No Coord <5u Eiements)

w

Struct =>0.5p > 5:1 Aspect Ratio Grid acceptance: Posiuve diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M I >5u N’ EOS spectrum contortning to laboratory holes or opaque areas idenlification criteria observed Chrysotile AMPHiBOLES Amphibole F ’ Single Fiber Amosite B ’ Bundle (<i fibers <1 fioer diameter apart Crocidolite Ambiguous C = Cluster {>3 Intersectionsi Anthophyllite Non-Asbestos I Tremolite M = Matrix Non-Identified Actinolite ! NSD ’ No Structures Detected ____ ._J

CITY_21MC100_002900607

NYC-WTC_000228449