NYC-WTC_000228741

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1808 Lab Group #: 7614 Filter Type / Filter Area: MCE 385 mm" Lab Sample #: 16 Grid Opening Size: 0.01124

Client Sample #: 18 Area Examined; 0.04496 mm"

GRID BOX: Magnification: 20,000 GRUHD: Accelerating Voltage; too KeV # Grid Openings: 4 Analysis Date: 5/2/02

Analysis Performed By: MARK PEYSARHOV

GO. Structure Structure Type Length ID of Slrucaire N or v EDS : No (Nonadb F B C >=05 (J . >=5ij Chrys AfnphSjote Nonast) AnSj^ND No Coord <5m Elements) j

I i 4

Struct = > 0.5p > 5:1 Aspect Ratio Qua acceptanffl; N= Positive diffraction pattern properties conforming to <50% unoSsolred filter, overlapped or folded Totals <10% particuiate coverage >50% coverage ate (abofslory identrfcattoo criteria observed least 20 unfoSded or overtapped grW squares <5% F B c M 1 >5p v = EDS spectrum conforming lo laboratory hoies Of opaque areas identifiration criteria observed Chrysotile AMPHISdLES Amphibole F - Single Fiber Amosite Crocidolite Ambiguous B = Bundle (<3 fibers <1 fiber diameter apart C = Cluster (>3 Interseclfons) Anthoptiyllile Non-Asbestos T remolite M = Matrix Actinolite Noil-Identified NSO = No Structures Deieirted

CITY_21MC1OO_OO29O16O1

NYC-WTC_000228741