NYC-WTC_000229109

NYC 9/11 Public Portal Document TEM Asbestos (air) Count Sheet NYC-WTC_000229109 Client Name: NYC BOE Volume (liters): 1848 Lab Group #: 7893 Filter Type / Filter Area: MCE 385 mm Lab Sample #: 10 Grid Opening Size: 0.01124 Client Sample #: 12 Area Examined: 0.04496 mm* GRID BOX: A Iq Magnification: 39 090 GRID ID: LL. ZK, Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 5/28/02 nn Analysis Performed By: Ke ROMAN PEYSAKHOV GO. Structure | Structure Type Length Dot Structure Nor ¥ r nes, , No 208 = Amphibole | Neonasb | Ambig/ND ona No Coord!) FiBiCI]M ote >=y Chrys mp as mibig/N Elements} bbe ZZZ1 4 Ty! | _ 9 AS it : -- -— a ft Struct = > 0.54 > $41 Aspect Ratio Grid acceptance: 11= Positive diffraction pattern proverties conforming 10 <20% undissolved liter, overlapped or folded Totals : se nether <40% particulate coverage >50% coverage ale laboratory dentfication criteria observed least 20 unfolded or overlapped grid squares <5% FYrBITCIMI >i ¥= EDS spectrum conforming to laboratory holes of opaque areas : | identification criteria observed : Chrysotile , 4 AMPHIBOLES Amphibole F = Single Fiber Amosites = 6 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous ¢ = Cluster (23 Intersections} Anthophyllite Non- Asbestos . Tremolite - M = Matrix Actinolite Non-lIdentified NSD = No Structures Detected CITY_21MC100_002902219