NYC-WTC_000229208

NYC 9/11 Public Portal Document TEM Asbestos (air) Count Sheet Client Name: = NYC BOE Volume (liters); 1808 Lab Group #: 7988 Filter Type / Filter Area: MCE 385 mm? Lab Sample #: 1} Grid Opening Size: 0.01124 Client Sample #: 13 Oo Area Examined: 0.04496 mm? GRID BOX: AE LO a , Magnification: 29 990 GRID ID: F Get LD Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/6/02 Analysis Performed By: Lar Ca MARK PEYSAKHOV GO. Structure | Structure Type Length IDofStuctue Nor ¥ es ; a: No =05 = poe | Nonaso | AmbgiND :No Coord F/B) CyM "Se >= Chrys Aro Elements} CWP | OSS OP ge | oe mi Struct = > 0.5 > 5:1 Aspect Ratio Grid acceptance: Total laboratory i ‘ ia obsarved 410% particulate coverage >50% coverage ate ‘aentlicaton crtena least 20 untokded or overlapped grid squares <5% FiBITCIMI > ¥= EDS spectrum conforming to laboratory holes of opaque areas identification criteria observed Chrysotile AMPHIBOLES | Amphibole F = Single Fiber Amosite | : 8 = Bundle (<3 fibers <t fiber diameter apart | Crocidolite Ambiguous C = Cluster (>3 intersections) | Anthophyllite Non-Asbestos ere Tremalite | - > Mi Matrix : Actinolite ‘ Non-Identified ; 7 NSO = No Structures Detected bce i CITY_21MC100_000491707 NYC-WTC_000229208