NYC-WTC_000228244

NYC 9/11 Public Portal Document Client Name: NYC BOE Lab Group #: 7248 Lab Sample #: 3 Client Sample #: 03 GRID BOS: 283 GRID ID: zet # Grid Openings: 4 Analysis Performed By: TEM Asbestos (air) Count Sheet Volume (liters): 1840 Filter Type / Filter Area: MCE 385 mm? Grid Opening Size: 0.01124 Area Examined: 0.04496mm? Magnification: 20,000 Accelerating Voltage: 100 KeV Analysis Date: 3/28/02 GO Structure No No Coord не ноо - 248 Tie 3EL LPL Structure Type F B M MARK PEYSAKHOV Length >=05 u >=5u Chrys ID of Stucture Nor V Amphibote Nonass Ambig/ND EDS (Nonadb Elements) Struct => 0.5u > 5:1 Aspect Ratio V= Positive diffraction pattern properties conforming to laboratory identification criteria observed V= EDS spectrum conforming to laboratory identification criteria observed F = Single Fiber B = 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 F TB C >5u Chrysotile Amphibole Ambiguous Non-Asbestos Non-Identified CITY_21MC100_002899604 NYC-WTC_000228244