NYC-WTC_000228933

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1800 Lab Group #: 7768 Filter Type / Filter Area: MCE 385 mm’ Lab Sample #: 2 Grid Opening Size: 0.01124

Client Sample #: 04 Area Examined: 0.04496 mm'

GRID BOX; Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 5/16/02

Analysis Performed By: MARK PEYSAKHOV

GO Structure Stricture Type Length ID of Structure N or y EDS I [Nonadb i No F B C M Chrys A^iiptiibofe Monasb Ambig/NO No Coord <5p Elements) I

g erg*

^<3

Struct = > 0.5(1 > 5; I Aspect Ratio Grid acceptance; >1- Positive ditfracton pattern properties contorming to <50% ufldissolved filter, overlapped or folded Totals latsoratory idenhScation criteria observed <10% paniculate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F j B C M i >5h '/= EDS spectfuni conforming to laboratory holes or opaque areas . idenbfication criteria observed Chrysotile i AMPHIBOLES Amphibole F = Single Fiber Amosite Ambiguous T B = Bundle (<3 fibers <1 fiber diameter apart Crocidofile i C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite Non-Identified N3O - Mo Structures Detected

CITY_21MC100_002901923

NYC-WTC_000228933