NYC-WTC_000200275

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BGE Volume /liters'): 1880 Lab Group #: 7285 Filter Type / Filter Area: MCE 385 mnr Lab Sample #: 9 Grid Opening Size: 0.01124

Client Sample #: 09 Area Examined: 0.04496 mm^ GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/31/02

Analysis Performed By: MuNRK PEYSAKHOV.

GO. Structure Structure Type Length ID of Structure N or 9 EDS No ^=05 J I (Nonadb F B C M Chrys Amphibole Nonasb Ambig/ND i No I Coord I Elements)

Ia !

Struct = > O.Sp > 5:1 Aspect Ratio Grid acceptance: 9= Fositivs diffraction pattern properties conforming to <50% uncissolved filter overlapped or folded T otals laboratory identification criteria observed <10% parJculate coverage >5C% coverage ate least 20 unfolded or overlapped gild squares <5% r F i B 7= EC'S spectrum conforming to laboratory C M >5p holes or opaque areas L identification criteria observed ChiYSOtile j AMPHIBOLES Amphibole F = Single Fiber / Amosite 3 = Bundle ;<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster {>3 mtersections) Anthophyllite 1 Non-Asbestos i Tremolite j M = Matrix ■ NSD = No Structures Detected Actinolite i Non-identified L.

CITY_21MC1OO_O11274768

NYC-WTC_000200283