NYC-WTC_000200963

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1840 Lab Group #: 7776 Filter Type / Filter Area: MCE 385 mm* Lab Sample #: 8“ Grid Opening Size: G.01124 Qient Sample^ 08 Area Examined: 0.04496

GRIDBOX: Magnification: -20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 5/18/02

Analysis Performed By: MARK PEYSAKHOV

GO, Structure ’Structure Type Length ID of Structure Norv EOS No , up (Nonadb B C M >=05 u i>=5p Chrys Amphibole - Nonasb Ambig/ND No Coord .<5tJ Elements)

Struct = > 0.5p > 5:1 Aspect Ratio Grid acoeptancs: •A Positive diffraction pattern properties conforming to ^^0% tindissolveid filter, overlapped or folded Totals laboratory -identification - ■ criteria observed <10% particulate coveraged>50% coverage ate least 20 unfolded or overlapped grid squares <5% F i B C' M i >5p EDS spectrum conforming to laboratory holes or opaque areas identification criteria ooserved Chrysotile AMPHIBOLES Amphibole ■I ,E - Single Fiber Amosite 3 = Bundle (<3 fibers <1 fiber diameter apan Crocidolite Ambiguous 3 ’ Clutter A S inKrcociior ji Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite Non-Identified NSD = No Structures Detected

NYC-WTC_000200970