NYC-WTC_000228614

NYC 9/11 Public Portal Document Client Name: Lab Group #: Lab Sample #: Client Sample #: GRID BOX: GRID ID: # Grid Openings: 4 NYC BOE 7513 11 13 1066 Analysis Performed By: TEM Asbestos (air) Count Sheet Volume (liters): 1800 Filter Type/ Filter Area: MCE 385mm' Grid Opening Size: 0.01124 Area Examined: 0.04496mm Magnification: 20,000 Accelerating Voltage: 100 KeV Analysis Date: 4/23/02 GO No Coord 40 415 h|a|NY Structure No Structure Type FB MARK PEYSAKHOV Length >=05 u <5u >=5ụ Chrys Amphibole ID of Structure Nor V Nonaso Ambig/ND EDS (Nonadb Elements) Struct => 0.5u > 5:1. Aspect Ratio V= Positive diffraction pattem properties conforming to laboratory identification criteria observed V= EDS spectrum conforming to laboratory identification criteria observed F =Single Fiber 8 = Bundle (<3 fibers <1 fiber diameter apart C= Cluster (>3 Intersections) M = Matrix NSD = No Structures Detected Grid acceptance: ‹50% undissolved filter, overtapped 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 F B >5p Chrysotile Amphibole Ämbiguous Non-Asbestos Non-Identified CITY_21MC100_002901132 NYC-WTC_000228614