NYC-WTC_000200426

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume filters): 1920 Lab Group #: 8029 - Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 3 '■ Grid Opening Size: 0.01124 Client Sample #: 03 Area Examined: 0.04496

GRID BOX: Magnification: 20 000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/9/02

Analysis Performed By; MARKPEYSAKHOV

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

I N?

2 7 Struct = > 0.5p. _> 5:1 Aspect Ratio; . Grid acceptance: ■'

7;, 1 y= Positive diffraction pattern properties conforming to <60% undisso ved Wet, 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 >5p: ; EDS spectrum conforming to laboratoy holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES 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' Non-ldentified Actinolite NSD = No Structures Detected

CITY_21MC100_011274872

NYC-WTC_000200428