NYC-WTC_000198700

NYC 9/11 Public Portal Document TEM Asbestos (air) Count Sheet Client Name: NYC BOE Lab Group #: 8104 Lab Sample #: 9 Client Sample #: 09 GRID BOX: eS GRID ID: ERC # Grid Openings: 4 Volume (liters): 1840 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: 6/15/02 Analysis Performed By: OE C= MARK PEYSAKHOV GO. Structure | Structure Type Length ID of Structure Nor V an No >=05 >= Amphibole Nonasb AmbigiND ona No Coord F;B)C|M Sy Su Chrys Elements) EQ AEA AES —_— ~/ ES ¢ 27| —— Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance: V= Positive diffraction pattern properties conforming to <50% undissolved fiter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F/BYC]MI] 4p = EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Oo Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite - B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections} Anthophyliite Non-Asbestos — pace Tremolite - M = Matrix Actinolite Non-Identified ~a a a a—---. NSO = No Structures Detected NYC-WTC_000198700 CITY_21MC100_003030432