NYC-WTC_000221564

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: XYC BOE Volume (liters): 1840 Lab Group #: 7325 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 8 Grid Opening Size: 0.01124

Client Sample #: 08 Area Examined: 0.04496 mm^

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

Analysis Performed By: MARK PEYSAKHOV

GO, Structure Structure Type Length ID of Structure Norv EDS (Nonadb No F 8 C M >=05 M i>=5|j Chrys Amphibole Nonasb Ambig/ND Elements) No Coord <5u

---- ---- 3 -------—

Struct = > 0.5g > 5:1 Aspect Ratio Grid 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 overiapped grid squares <5% F B C M >5p v'= EDS spectrum conforming to laboratory holes or opaque areas identification cntena observed Cluysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 liber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC100_002888374

NYC-WTC_000221564