NYC-WTC_000202001

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume fliters!: 1920 : Lab Group #: 7195 Filter Type / Filter Area: MCE 385 mnY Lab Sample #: 14 Grid Opening Size: 0.01124 2 > / Client Sample #: 14 Area Examined: . 0.04496 mm^ ■ GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100/KeV # Grid Openings: 4 Analysis Date: 3/24/02-

Analysis Performed By: MARK PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or 9 I YDS AiWND'-j No Coord No F. B Km >=05 p ■ >=5p Chrys Amphibole Nonasb - I Elements) <Sm\ OCT

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Struct = > 0.54 > 5:1 Aspect Ratio .Grid-acceptance: a/= Positive diffraction pattern propertiescontormlng to <50% undissolved filter, overlapped or folded Totals laboretory identification criteria observed ; <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M ^5|j i V= EDS spectrum contormlng to laboratory holes oropaque areas identification criteria observed. ■ Chrysotile j AMPHIBOLES i ' Amphibole r = Single Fiber . : 1 I Amosite B = Bundle (<3 fibers <1 fiber diameter apart : Crocidolite Ambiguous C = Cluster (>3lntersectiDnsi : ; ; Anthophyllite Non-Asbestos F Tremdlite M = Matrix i Nou-Identified ' Actinolite / NSD i= No Structures Detected :

CITY_21MC100_011275967

NYC-WTC_000202001