NYC-WTC_000223643

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: ^fYCBOE Volume (liters): 1920 < Lab Group #: 7272 Filter Type / Filter Area: MCE 385 mm’ Lab Sample #: 5 Grid Opening Size: 0.01124 Client Sample #: 05 Area Examined: 0.04496 mm’

GRID BOX: iff Magnification: 20,000 GRID ID: figs. Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/30/02 Analysis Performed By: /^t

ROMAN PEYSAKHOV

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

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Struct = > O.op > 5:1 Aspect Ratio Gnd acceptance: '/= Positive diffraction pattern properties conforming to <50% undissolved filter, 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 I M ' ’3p 'J- EOS spectrum conforming to laboratcry holes or opaque areas identifcation cntena observed Chrysotile “1 i AMPHIBOLES Amphibole ---- ------ 1------ P = Single Fiber I I Amosite ——I------ B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous I C = Cluster i>3 ntersecti'ons) Anthophyllite Non-Asbestos M = Matrix Tremolite Non-Identified 1I Actinolite NSO = No Structures Detected

CITY_21MC100_002919617

NYC-WTC_000223643