NYC-WTC_000202047

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume niters): 1840 A ; Lab Group #: 7119 i - Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 6 Grid Opening Size: 0,01124)1 Client Sample #: 06 Area Examined: 0.04496 GRID BOX: 90-7 Magnification: 20,000 GRID IP: Accelerating Voltage: 100 KeV # Grid Openings: 4 ) Analysis Date: 3/18/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or ’ v' EDS No >=OSp I : Ambig/ND i(Nonadb F B C M Chrys Amphibole Nonasb ; No Coord <5p Elements)

Q 07

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Struct = > 0.5p > 5:T Aspect Ratio Grid acceptance Positive diffracdon pattern properties conforming to -=5™ undissolved filter, overlapped or folded ) Totals laboratory identification criteria obsen/ed <10% particulate coverage >50% coverage ate

EOS spectrum ccnforming to laboratory least 2C unfolded dr overtapped grid squares <5% holes or opaque areas F B e M >5u , identification criteria observed Chrysotile AMPHIBOLES Amphibole ; F =SingleFiber ' | / ; Amosite B = Bundle {<3 fibers <1 fiber diameter apart Crocidolite Ambiguous / C = Cluster (>3 intersections) f .- Anthophyllite Non-Asbestos Tremolite i M = Matrix -i - i i i'T i Non-Identified T“ Actinolite ' NSD = No Structures Detected)

CrTY_21MC100_003269957

NYC-WTC_000202047