NYC-WTC_000227315

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1824 Lab Group #: 7094 Filter Type / Filter Area: MCE 385 mm’ Lab Sample #: 5 Grid Opening Size: 0.01124 Client Sample #: 07 Area Examined: 0,04496 mm’ GRID BOX: Magiaification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/16/02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of SInjcture N or V EDS (Nonadb No F B C M >=05 p :>=5p Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements)

1

Struct = > 0.5n -> 5:1 Aspect Ratio Gnd acceptance: Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5m 'i- EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile r AMPHIBOLES Amphibole F = Single Fiber i Amosite B = Bundle (<3 fibers <1 fiber diameter apart ' Crocidolite Ambiguous I Anthophyllite ' C = Cluster (>3 Intersections) Non-Asbestos ; Tremolite j M = Matrix Non-fdentified Actinolite NSD = No Structures Detected

CITY_21MC100_002898639

NYC-WTC_000227315