NYC-WTC_000223715

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 7458 Filter Type / Filter Area: MCE 3S5 mm- Lab Sample #: 3 Grid Opening Size: 0.01124

Client Sample #: 03 Area Examined: 0,04496 mm-

GRID BOX: Magnification: 20.000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 4. i 8 02

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure or \ =os itvonacE No F B C M >=05 p Chrys Amphibole Nonasb । A.moiQ/ND ; No Coord <5m i ’ Clemen’s;

GT

Struct = > !l 5u > 5:1 Aspect Ratio Grid acceptance; 4= Positive diffraction pattern properties conforming to <50% undissotved filter, overlapped or folded Totals laooralory identification criteria observed <10% partculaie coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% ' i F B CM \ = EDS spectrum conforming to laboratory holes or opaque areas I ioentification criteria observed Chrysotile AMPHIBOLES Amphibole i - = Single Fiber Amosite 3 = gupdie i<3 libers <1 fiber diameter apart Crocidolite .Ambiguous C = Cluster i>3 intersections) Anthophyllite Non-Asbestos T remolite M = Mailix Actinolite I \on-Ideniirled MSD = Mo Structures Cetected

CITY_21MC100_002919806

NYC-WTC_000223715