NYC-WTC_000200579

NYC 9/11 Public Portal Document

TEM^Asbestos (air) Count Sheet Client Name: NYC BOE Volnme (liters): 1840 Lab Group #: 8161 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: J Grid Opening Size: 0.01124

Client Sample #: 03 Area Examined: 0.04496 mm-

GRID BOX: Magnification: . 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/18/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure Nory' EDS ' (Nonadb No i F B C M >=05 p Chrys Amphibole Nanasb Ambig/ND No Coord Elements) <5|J

■ I

<7)7 Struct = > 0.5p >5:TAspect Ratio Grid acceptance: ■s'=)Positive diffraction pattern properties confomting to <0% undissolved filter, overlapped or folded^ ) Totals . 17;/ laboratory identification criteria observed <10% particuiate coverage >50% coverage ate ' V least 20 unfolded or overlapped grid squares <5% F B I C M >5u ■ ;7«.,; C= EDS spectrum conforming to laooratory holes or opaque areas ; identification criteria observed Chrysotile AMPHIBOLES Amphibole 7 F = Single Fiber Amosite • B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous - : C = Cluster (>3 Intersections) ■ Anthophyllite' Non-Asbestos Tremolite . M = Matrix Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC100_011275004

NYC-WTC_000200581