NYC-WTC_000229135

NYC 9/11 Public Portal Document Client Name: Lab Group #: Lab Sample #: Client Sample #: GRID BOX: GRID ID: #Grid Openings: 4 NYC BOE 7912 3 05 182 Éuro Anaiysis Performed By: GO Structure No No Coord LRaso scrzas 367 80znh Structure Type FTBTCM TEM Asbestos (air) Count Sheet Volume (liters): 1848 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: 5/30/02 MARK PEYSAKHOV Length >=05p >=5u <5u Chrys Amphibole ID of Strictre Nor V Nonast Ambig.ND EDS (Noradb Elements) .Struct => 0.5u > 5:1 Aspect Ratio V= Positive diffraction patter properties conforming to laboratory identification criteria observed Y= EDS spectrum conforing to laboratory identification criteria observed Grid acceptance: <50% undissolved fitter, overlapped or folded ‹10% particulate coverage ≥50% coverage ate least 20 unfolded or overlapped grid squares <5% holes or opaque areas F = Single Fiber B = Bundle (<3 fibers <1 fiber diameter apart C = Cluster (>3 Intersections) M = Matrix NSD = No Structures Detected AMPHIBOLES Amosite Crocidolite Anthophyllite Tremolite Actinolite Totals F IM Chrysotile Amphibole Ambiguous Non-Asbestos Non-Identified CITY_21MC100_002902260 NYC-WTC_000229135