NYC-WTC_000223699

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1928 Lab Group #: 7425 Filter Type / Filter Area: MCE ;385 mm- Lab Sample #: 5 Grid Opening Size: 0.01124 Client Sample #: 08 Area Examined: ij. 04496 rnm-

GRID BOX: iVlagnification: 20.000 GRID ID: Accelerating V'oltage: 100 KeV # Grid Openings: 4 Analysis Date: 4-15 02

Analysis Performed By: /yt ROMAN PEYSAKHOV

GO Structure Structure Type Length 10 of Structure N or \ -Ui

No iNonaab F B C M >=05 u >=5(J Chrys Amphiooie : Ncnasb Ambig;NC No Coord Eigmer'i i

I

Struct = > 0.5p >5:1 Aspect Ratio Grid acceptance: V = Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or loloed Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped gnd squares <5% : F ' B : C M 'J - SOS specrum conforming to iaccratcry holes or opaque areas i identification cntena observed Chrvsoiile AMPHIBOLES Amphibole i F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = .Siusler(>3 Intersections! Anthophyllite Non-Asbestos Tremolite M = Matrix I Non-identified ’ Actinolite \S3 = No Structures Detected

CITY_21MC100_002919777

NYC-WTC_000223699