NYC-WTC_000208331

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: WC BOE Volur le (liters): 1920 Lab Group #: 8759 Filter Type / Fi ter Area: MCE 385 mm- Lab Sample #: 11 Grid Opening Size: 0.01124 Client Sample #: 11 Area E xamined: 0.04496 mm- GRID BOX: Mag lification: 20,000 GRID ID: SZ// Acceleratin a Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 8/25/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure No structure Type F~ B C I M ’"05 pi Length "Chrys ID of St ucture Amphibole 7 Nonasb N or 7

Amb,g/ND EDS r No Coord <5pj i Etements)

/fH 3 J I

Struct = > U.5pi > 5; I Aspect Ratio Gnd acceptance;

y- Positive oiffraction 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 M >5tJ ' y = EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambig JOUS C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite HS.D = No Structures Detected

CITY_21MC100_003021658

NYC-WTC_000208331