NYC-WTC_000208242

NYC 9/11 Public Portal Document

TEM Asbesfos (air) Count Sheet Client Yame: XYC BOL VolmmyflitersjR 1912 Lab Group 8828 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: ?? Grid Opening Size: 001124

Client Sample #: 22 Area Examined: 0.04496 mm-

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 9/10/02

Analysis Perfi rmed By: MARK PEYSAKHOV

GO. Structure Structufe Type Length D of structure Nor V EDS INonadc No F B C M =05 u >=5p Chrys \ Amphibole Nonasb AmbKji'ND No Coord <5p EiemeiitS!

/—1 J—b

i i ry M

Struct => 0.5u >5:1 Aspect Ratio Grid accepiance;

/= Positive diffraction pattern properties coriforrr’ ng to <50% undissolved filter, overlapped or folded Totals <10% particulate coverage >50% coverage ate laboratory laentification criteria observed least 20 unfolded or overlapped grid squares <5% f i F ! B C i M I >5P v = EDS spectrum conforming to laooratoiv holes or opaque areas laentification criteria observed Chrvsotile AYPmBOLES .Amphibole r : Sing e Fiber Amosite B = Bundle tibers <1 fiber diameter apart Crocidolite Ambiguous 0 = Cluster !>3 intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-ldentified Actinolite NSD = No Structures Detecteo

CITY_21MC100_003021225

NYC-WTC_000208242