NYC-WTC_000212870

NYC 9/11 Public Portal Document • Client Name: NYC BOE Lab Group #: 8086 Lab Sample #: 14 Client Sample #: 14 GRID BOX: GRID ID: #Grid Openings: 4 TEM Asbestos (air) Count Sheet Volume (liters): 1936 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: 6/13/02 Analysis Performed By: GO Structure No No Coord Ba eNg T5e NSO BJ3 01 E Structure Type FBCM MARK PEYSAKHOV Length >=05m >=5р Chrys ID of Structure Nor V Amphibole Nonast Ambig/ND EDS (Nonadb Elements) Struct = > 1.5p > 5:1 Aspect Ratio y= Positive diffraction pattem properties conforming to laboratory identification criteria observed V= EDS spectrum conforming to laboratory identification crtena observed F = Single Fiber E = Bundle (<3 fibers ‹ 1 fiber diameter apart C = Cluster (>3 Intersections) M = Matrix NSD = No Structures Detected Grid acceptance: <50% undissolved filter, overlapped or folded <10% particulate coverage >50% coverage ate least 20 unfolded or overtapped grid squares <5% holes or opaque areas AMPHIBOLES Amosite Crocidolite Anthophyllite Tremolite Actinolite Totals FBTCTM >u Chrysotile Amphibole Ambiguous Non-Asbestos Non-Identified CITY_21MC100_002852488 NYC-WTC_000212870