NYC-WTC_000197599

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NX’C BOE Volume (liters): 1936 Lab Group #: 5999 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: Grid Opening Size: 0.01124

Client Sample #: Area Examined: 0.04496 mm*

GRID BOX: Magnification: 20,000 GRID ID : Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 11/30/01

Analysis Performed By: MARK PEYSAKHOV

GO. Structure : Structure Type Length ID of Structure NorN EDS

r (Nonadb No 3 ! C M >=05 M >=5|j Chrys Amphibole Nonasb Ambig/ND No Coord Elements) <Sp

i

Struct = > 0,5u > 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 I C I M i >5u , ■/= EDS spectrum conforming to laboratory holes or opaque areas I identification criteria observed Chrysotile I AMPHIBOLES j Amphibole F = Single Fiber ; Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite Non-Identified NSD = No Structures Detected

CITY_21MC100_003046244

NYC-WTC_000197599