NYC-WTC_000228649

NYC 9/11 Public Portal Document Client Name: Lab Group #: Lab Sample #: Client Sample #: GRID BOX: GRID ID: # Grid Openings: NYC BOE 7556 11 14 1078 895 4 Analysis Performed By: TEM Asbestos (air) Count Sheet Volume (liters): : 1912 Filter Type / Filter Area: MCE 385 mm? Grid Opening Size: 0.01124 Area Examined: 0.04496 mm= Magnification: 20,000 Accelerating Voltage: 100 KeV Analysis Date: 4/28/02 GO No Coord -INMoX Fole Structure No Structure Type ROMAN PEYSAKHOV Length >=05p >=5u Chrys Amphibole ID of Structure Nor i NonasD Ambg/ND EDS (Nonaco Eements) Struct = > 0.5u > 5:1 Aspect Ratio V= Positive diffraction pattern properties conforming to laboratory identification criteria observed V= EDS spectrum conforming to laboratory identificatior criteria observed F =Single Fiber B = Bundle i<3 fibers <1 fiber diameter apart C = Cluster (>3 Intersections) M = Matnx NSD = No Structures Detected Grid acceptance: <50% undissolved filter, overlapped or folded ‹10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% holes or opaque areas AMPHIBOLES Amosite Crocidolite Anthophyllite Tremolite Actinolite Totals FBC >5u Chrysotile Amphibole Ambiguous Non-Asbestos Non-Identified CITY_21MC100_002901228 NYC-WTC_000228649