NYC-WTC_000200478

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: WC BOE Volume (liter,s): 1805 Lab Group #: 8072 - Filter Type / Filter Area: MCE 385 mm’ Lab Sample#: -15..: Grid Opening Size: 0.01124 Client Sample #: 15 Area Examined: 0.0449.6 mm’

GRID BOX: Magnification: 20,000 ; GRID ID: Accelerating Voltage: TOO KeV, # Grid Openings: 4 Analysis Date: 6/12/02

Analysis Performed By: ROMAN PEYSAKHOV

GO, Structure Structure Type Length ID Of Structure N or n' - ■ EDS No {Nonadb F- B C M >=05 p Ghrys Amphibole Nonasb Ambig/ND No I Coord Elemenls) j

3^ t/ <5p

02^

Struct = > 0.5u > 5:1 Aspect Ratio GriSacceptance: a/= Posilive diffracton pattern properties conforming to undissolved filter, overlapped or folded Totals I laboratory identification criteria observed <10% partculate coverage >50% coverage afe least 20 unfolded or overtapped grid squares <5% F B C M >5p '/= EDS spectrum conforming to laborato^ holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole r = Single Fitaer Amosite S = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous ■ C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite , NSD = No Structures Defected

CITY_21MC1OO_O112-7 49 28

NYC-WTC_000200492