TEM asbestos air count sheet, PS 89M, Jan 17 2002

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1936 Lab Group #: 6354 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 8 Grid Opening Size: 0.01124 Client Sample #: 08 Area Examined: 0.04496

GRID BOX: AVOX 7M_ / Magnification: 20,000 GLILH): Accelerating Voltage: 100 Ke V # Grid Openings: 4 Analysis Date: 1/17/02

Analysis Performed By: ROMAN FEYSAKHOV

GO. Structure ' Structure Type Length ID of Structure Norv EDS i (Nonadb j No F B C M >=05 u >=5|j Chrys ' Amptilboie Nonasb Ambig/ND No Coord <5tJ Elements) i - ---------- 1

t/

if

Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance:

'/= Positive diffraction pattsm properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% paniculate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C .[ M [ >5m V = ECS spectrum conforming to laboratory holes or opaque areas identification oritaria observed Chrysotile AMPHIBOLES Amphibole F = .Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidoilte Ambiguous j C = Clusier(>3 Intersections; Anthophyllite Non-Asbestos Tremolite i Non-Ideatified

CONFIDENTIAL, SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008 CITY_21MC100_014660139 NYC-VVTC_000174746