NYC-WTC_000229010

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1800 Lab Group #: 7826 Filter Type / Filter Area: MCE 385 Lab Sample #: I Grid Opening Size: 0.01124 Client Sample #: 03 Area Examined! 0,04496 mm’

GRID BOX; Magnification: 2O.OOO GRIDID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 5/21/02

Analysts Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length IO of Structure N or v EDS (Nonadb ! No F 5 C M >=05 M >=5p Chrys Amphibcle [ Noitash Ambig/ND No Coord Etemenis) i

Struct = > O.Sp > 5;I Aspect Ratio Grid acceptance: 1/= Positive (^fraction pattern properties contormlng to <50% undissolved filter, overtapped or folded Totals laborator/ identiftcation oiteria observed <10% particulate coverage >50% coverage ate ieast20 unfolded or overiapped grid squares <5% F B C ! M 1/= EDS spectrum conforming to laboratory holes or opaque areas identification criteria deserved Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite Ambiguous

I B = Bundle (<3 fibers <1 liber diameter apart Crocidolite C ’ Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M - Matox Actinolite Non-fdentified I NSD = No Structures Detected

CITY_21MC100_002902042

NYC-WTC_000229010