NYC-WTC_000229329

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name; NYC BOE Volume (liters'): 1816 Lab Groan #: 8178 Filter Type / Filter Area: MCE 385 mm’ Lab Sample #; 5 Grid Opening Size; 0.01124 Client Sample #: 07 Area Examined: 0.04496

GRID BOX: Magnificatt^ 20,000 GRID ID; Accelerating Voltage; 100 KeV # Grid Openings: 4 Analysis Date; 6/19/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length IDofSbudure N or V £DS (Nonadb Nq F B C >=05 p >=5p Chrys Amphibole Nonasb AmOig/NO <5p Elenwnte)

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Struct = > e.5g ->5:1 Aspect Ratio Grid acceptance: 4= Positive diffraction pattern properties conforming to <50% undissotved flhsr, overtappeo or Prided Totals latx?fatofyioen!ificatjon cntena observed <10% parbcutate coverage >50% coverage ala least 20 unfolded or (Keriappsd grid squares <5% F B C M >5y EOS spectrum conforming to latxjratety holes or opaque areas identification criteria observed Chrysotile j AMPHIBOLES ; Amphibole F = StogleFa»r Antosits 8 = Bundle (<3 libers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) ■ Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite ; Non-ldentified USD = No Structures Detected

CITY_2IMCl00_000491967 NYC-WTC_000229329