NYC-WTC_000229055

NYC 9/11 Public Portal Document TEM Asbestos (air) Count Sheet # Grid Openings: 4 Client Name: NYC BOE Lab Group #: 7858 Lab Sample #: 5 Client Sample #: 07 GRID BOX: AE GRID ID: OE SS Volume (liters): Filter Type / Filter Area: Grid Opening Size: Area Examined: Magnification: Accelerating Voltage: Analysis Date: 1816 MCE 385 mm 0.01124 0.04496 mm? 20,000 100 KeV 3/25/02 Analysis Performed By: al — - MARK PEYSAKHOV GO. Structure | Structure Type Length IDof Structure Nor ¥ noe a — ~ |. Ne | 3205 >= Amphibole | Nenash | AmbigiND nado No Coord FYBic\M Sp Su Chrys Elements} > 4 bo | tee SD £2 ae | SAY |) = | ] | | { { | Struct => 0.5u > 5:1 Aspect Ratio Grid acceptance: l= Positive diffraction pattern properties conforming ta “50% undissolved filter, overlapped cr folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate . . least 20 unfolded or overlapped grid squares <8% F BlCIM! Sn V= EDS spectrum conforming to laboratory holes or opaque areas : identification criteria anserved Chrysotile AMPHIBOLES Amphibole : F = Single Fiber Amosite ° — +- dol Ambiguous ; Zz \ 8 = Bundle {<3 fibers <1 fiber diameter apart Crocidolite an | C = Cluster (>3 intersections) Anthophyltite Non-Asbestos ° | | Tramolite 7 : , t M= Matrix Actinotite Non-Identified ! i NSO = No Structures Detected NYC-WTC_000229055 CITY 21MC100_ 002902118