NYC-WTC_000229213

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume filters): 1824 Lab Group #; 8002 Filter Type / Filter Area: MCE 385 Lab Sample #: 3 Grid Opening Size: 0.01124 Client Sample #: 05 Area Examined: 0.04496 mm’ GRID BOX: Magnifleatiop: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/8/02

Analysis Performed By: MARK PEYSAKHOV

; GO. Structure Structure Type Length ID of Structure N or v EOS No Nonasb Amb.g/’ND (NonaJb F B C M >=05 M >=5y Chrys AmphgMle j No I Coord <5P Elements)

I

Street = > 0,5g > 5:1 Aspect Ratio Grid acceptance: 'i- Posidve diffraction pattern propertiee conforming to <50% undls3otvedflltBr,oveftapped or folded Totals laboratory identtficetion criteria observed <10% paniculate cwerage >50% coverage ale leasts unfolded Of overlapped grid squares <5% F B C M >5p V= EDS spectrum conforming to taboratory notes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 Ubers <1 to diameter apart Croddotlte Ambiguous C= Cluster (>3 Intersecbons) Anthophyllite Noil-Asbestos Tremolite M = M8trK Actinolite Non-Identified NSD = No Structures Detected

CITY_2IMCl0 0_0 00491723 NYC-WTC_000229213