NYC-WTC_000228810

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet 1 Client Narne; NYC BOE Volume (liters): 1864 Lab Group #: 7664 Filter Type / Filter Area: MCE 385 Lab Sample 17 Grid Opening Size: 0.01124 Client Sample #: 19 Area Examined: 0.04496 rntn^ GRID BOX: Magnification: 20 000 GRID ID: Accelerating Voltage; 100 KeV Grid Openings: 4 Analyst Date; 5/7/02

Analysis Performed By: MARK PEYSAKHOV

GO Structure Structure Type Length ID ol Structure N or V EDS (Nonadb No F B C M >=05 p ;>=5m Chfys Amphttnle Nonasb AnWNO No Coord <5p Elements)

tJ cP;?

Struct =>0.5p >5:1 Aspect Ratio Grid soceptance: 'J = Pos tive diffr«6on pattern properties coniorrning to <50% undissoived , overiapped or folded Totals laboratory icentifcaeoii erteria observed < f0% parfeutate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M ^l-EDSspecl^Jm conforming to laboratory holes or opaque areas idenurication criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite e - Surole (<3 Sbsra <1 fiber diameier apart Croddolite Ambiguous C = Cluster (>3 intersections) Anttiophyltlte Non-Asbestos Tremolite M = Matrix Actinolite Non-Identified NSD - No Structures Detected

CITY_21MC100_002901725

NYC-WTC_000228810