NYC-WTC_000219482

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: WC BOE Volume (liters): I 824, Lab Group #: 6880 Filter Type ' Filter Area: MCE 38' nim- Lab Sample #: 1 Grid Opening Size: U.01124 Client Sample #: 03 Area Examined: 0 04496 mm"

GRID BOX: Magnification: 20,000 GRID ID; Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/1/02

Analysis Performed By: ,, _ _ mark peysakhov

GO Structure Structure Type Length ID of Structure N or \ ED5 No F B C M >=05 M ^>=5p Chrys I Amphibole Nonasb I Ambig/ND i No Coord <5|j i ’ Eieinerts)

— <1^ □

Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance; V= Positive diffraction 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 ovehapped gnd squares <5% [ I F ! B I C , M j >5p y= EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrvsotile । ,AMPHIBOLES I Amphibole F = Single Fiber Amosite 3 = Bundle (<3 fibers <" ‘iber diameter apart Crocidolite ■ Ambiguous . C = Cluster (>3 intersections) Anthophyllite i Non-Asbesios Tremolite M = Matrix Actinolite Non-ldentified NSD = No Structures Detected

CITY_21MC100_002881168

NYC-WTC_000219482