NYC-WTC_000207921

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 9205 Filter Type / Filter .Area: MCE 385 mm- Lab Sample #: 5 Grid Opening Size: 0.01124

Client Sample #: 07 Area Examined: 0.04496 mm-

GRIP BOX: Magnification: 20.000 GRID IP: Accelerating Voltage: 100 KeV # Grid Openings: 4 .Analysis Pate: 12/23/200

.Analysis Performed By: ROMAN PEYSAKHOV

GO. structure Structure Type Length ID of Structure n or EDS No (Nonadb F B C M >=05 p >=5pj Chrys Amphibole Nonasb Ambig/ND , No Coord L. <5m Elements)

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!• .^hoto NO (trom 1 in 5 asbestos containing samples) Gnd acceptance: Struct = > 0.5p > 5:1 Aspect Ratio <50% undissolved filter, overlapped or folded Totals V- Positive diffraction pattern properties conforming to <10% particulate coverage >50% coverage ate laboratory identification criteria observed least 20 unfolded or overlapped gnd squares >5u I F B C .VI <5% holes or opaque areas >/= EDS spectrum conforming to laboratory identification criteria observed Chrysotile i .AMPHIBOLES ! Amphibole F = Single -iber I Amosite I 3 = Sundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Tremolite Non-Asbestos M = Matnx Actinolite Non-Identified NSO = No Structures Detected

CITY_21MC100_003017186

NYC-WTC_000207921