NYC-WTC_000229178

NYC 9/11 Public Portal Document GO. SE No Client Name: Lab Group #: Lab Sample #: Client Sample #: GRID BOX: GRID ID: # Grid Openings: 4 NYC BOE 7953 15 17 194 Analysis Performed By: Coord Structure No NEO Structuce Type FBCM TEM Asbestos (air) Count Sheet Volume (liters): 1808 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: 6/4/02 ROMAN PEYSAKHOV Length >205 р <5и >=5y Chrys ID of Structure Nor V Amphibole Nonast ГÄmbigND EDS (Nonado Elements) Struct => 0.5u > 5:1 Aspect Ratio V= Positive diffraction pattemn properties conforming to laboratory identification criteria observed Y= EDS spectrum conforming to laboratory identifcation critena observed F = Single Fiber B = Bundle (<3 fibers <t fiber diameter apart C = Cluster (>3 intersectons) M = Matrix NSD = No Structures Delected Grid acceptance: ‹50% undissolved filter, overtapped or folded <10% particulaie coverage ≥50% coverage ate least 20 unfolded or overtapped grid squares <5% holes or opaque areas AMPHIBOLES Amosite Crocidolite Anthophyllite Tremolite Actinolite Totais FBC M Chrysotile Amphibole Ambiguous Non-AsbestosR Non-Identified CITY_21MC100_002902366 NYC-WTC_000229178