NYC-WTC_000208030

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volnme fliters): 1880 j Lab Group #: (5331 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: ], Grid Opening Size: 0.01124 Client Sample #: 03 Area Examined: 0.04496 GRID BOX: -IMH Magnification: 20 000 GRID IP: Accelerating Voltage: 100 KeV 1i # Grid Openings: 4 Analysis Date: 1/14/02

, Analysis Performed By: ROMAN PEYSAKHOV

a ( No GO, Coord Structure No structure Type F- B C M >=05 p <Sm Length >=5p Ch^s ID of Structure N 0r> Amphibole Ncnasb Ambig/ND EDS (Nonadb Elements)

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Struct = > n.S^ >5:1 Aspect Ratio Grid accepiance: ji Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals i-W 'fl 31 Iatxjrato7 identification crltada otiserved <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M fl|!; V= EDS spectrum corforming to laboratory holes or opaque areas ) 1 idttiilificalion ciiiei'ia observed CHrysnnlc "amphiboles’ Amphibole F = Single Fiber Amofiita I I Ambiguous B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite C = Cluster (>3 Intersections) AnthophyllltE Non-Asbesios M = Mairi Tremolite Actinolite Non-Ideatified NSD = No S true lures Deiacrad

CITY_21MC1OO_OO3O18515

NYC-WTC_000208030