NYC-WTC_000212590

NYC 9/11 Public Portal Document

TEM Asbestosfaii^ Count Sheet ! Client Name: NYC BOE Volume (liters): 1928 Lab Group #: 7S36 Filter Type / Filter Area: MCE 385 mm^ I Lab Sample #: 1 Grid Opening Size: 0.01124 i L'lient Sample #: Area Examined: 0.04496 mm-

(3RID BOX; Magnification: 20,000 C;RID ID: Acceleratine Voltage: too KeV # Grid Openings: 4 Analysis Date: 5/23/02 Analysis Performed By: _____ ^/f

ROMAN PEYSAKHOV

GO Structure Structure Type Length 10 of Structure N or v EDS No F B C M >=05 p : =5m Ghrys Amphibole Nonasb Amb^NC Coord Elements) <5p

Stiuc! - > O.iu >5:1 Aspect Ratio Grid acceptance: V = Positive diffraction pattern pre perties conforming to <50% undissolved filter, overiapped or folded Totals laboratory identificabon criteria otiserved <10% particulate coverage >50% coverage ate least 20 unfolded or overiapped grid squares <5% F B C M >5u J = EDS spectrum conforming to iaborator/ holes or opaque areas iaentification criteria observed Chrysotile AMPHIBOLES Amphibole (■ = Single Fiber Amosite li = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous i; = Cluster j>3 Intersections) Anthophyllite Non-Asbestos Tremolite U - Matrix Non-Identified Actinolite NSD = Mo Structures Oetectec

CITY_21MC100_002867310

NYC-WTC_000212590