NYC-WTC_000202890

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: ATC Volume (liters): 3700 Lab Group #: 9035 Filter Type / Filter Area: MCE 385 mm" Lab Sample #: 16 Grid Opening Size: 0.01124 Client Sample #: 16 Area Examined; 0.24728 mm"

GRID BOX- Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 22 Analysis Date: 10/29/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length 10 of Structure Nor V EDS (Nortadb No F B C M >=05 u >=5p Chrys Amphibole Nonasb Ambig/ND <5p Eiements)

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I _______ I I___________________________ Photo No. ifrom 1 in 5 asbestos containing samples) Qnd acceptance- Struct = > 0.5u .> 5:1 Aspect Ratio <5o»/X^s^“ed fiber, overiapped or folded Totals v= Positive diffraction oattem properties conforming to <10% particulate coverage >50% coverage ate laDoratory icentificauon criteria observed least 20 unfolded or overlapped grid squares <5% C I M j >5u holes or opaque areas I F B \ = EDS spectrum conforming to laboratory iaentification cntena observed AMPHIBOLES Chrysotile Amphibole ! i F = Single Fiber Amosite _j__ Ij 3 = Bundle {<3 fibers <1 fiber diameter aoart Crocidolite Ambiguous i I C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matnx Actinolite Non-Identified NSD = No Structures Detected

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