NYC-WTC_000188406

NYC 9/11 Public Portal Document TEM Asbestos (air) Count Sheet . Lab Group #: 7716 Lab Sample #: 3 Client Sample #: 06 GRID BOX: Le # Grid Openings: 4 Client Name: NYC BOE é GRID ID: Sut 3 Volume (liters): 1808 Filter Type / Filter Area: MCE 385 mm? Grid Opening Size: 0.01124 Area Examined; 0.04496 mm’ Magnification: 9 000 Accelerating Voltage: 100 KeV Analysis Date: 5/11/02 Analysis Performed By: ED - ROMAN PEYSAKHOV GO. Structure | Structure Type Length ID ofStucture Nor V nes, , ———1_— No 3205 = Amphibole | Nonasb | AmbiyND on BL No Coord} , ry FYB) C)M Sy >=5u Chrys mon mon Elements) (Let VEO Sper 4 2 OS if Uf. (6 —— Struct = > 0.5 > 5:1 Aspect Ratio Grid acceptance: \= Positive diffraction pattem 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 NYC-WTC_000188408 Amosite Crocidolite Anthophyllite Tremolite Actinolite AMPHIBOLES | <50% undissolved filter, overlapped or folded <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% holes or opaque areas Totals F/B; Ci M{ >5u Chrysotile Amphibole Ambiguous Non-Asbestos Non-Identified CITY_21MC100_003080209