NYC-WTC_000229930

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 6699 Filter Type / Filter Area: .MCE 385 mm- Lab Sample #: 6 Grid Opening Size: 0.01 124 Client Sample #: 06 Area Examined: 0.04496 mm-

GRID BOX: Magnification: 20.000 GRID ID; Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 2/16/02

.Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or v EDS 'Nonadb No F B C M >=05 p i •=5p Chrys Amphibole Nonasb AmbigjND . No Coord <5p Elements)

1

Struct - > i) 5u 5: i Aspect Ratio Gfib acceptance: y = Posit ve diffraction paftem oropertes conforming to <50% undissohred filler, overlapped or folded Totals iaporator/ loe iiilicalion criteria observed < 10% partcuiate coverage >60% coverage ate least 20 unfoloed or overlapped grid squares <5% F B j C M 1 '3N v= EDS spectrum conforming to laboratory holes or opaque areas ideniificaron cnterla Observed Chrysotile AMPHIBOLES i Amphibole i F - Single Fiber Amosite B = Bundle ,<.} libers <t fiber diamater apart CrociOolite AmbiguouTt C = "luster r>3 ntersections) Anthophyllite , Non-Asbestos I I remolite M - Matrix Actinolite I Non-Identified ' I____________ . ! USD - No Structures Detected

CONFIDENTIAL, CITY_21MC100_003386271 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000229936