NYC-WTC_000212902

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet iJ Client Name: ---------------- NYC BOE Volume (liters): 1928 I Lab Group #: 8152 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 8 Grid Opening Size: 0.01124 Client Sample #: 08 Area Examined: 0.04496 mm^ GRID BOX: : GRID ID: # Grid Openings: 4 .•5 Magnification: 20,000 Accelerating Voltage: too KeV Analysis Date: 6/18/02

Analysis Performed By: ______ kJ________ 57^ ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure N or 'Z I EDS No Amphibole Nonasb Ambig/ND (Nonadb F B C M >=05 p >=5p • Chrys Elements) No Coord <5p

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Struct = > 0.5p > 5:1 Aspect Ratio Grip acceptance: V = Positive diffraction pattern properties conforming to <50% undissolved filler, overlapped or folded Totals lalwratoiy identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5p \ = EDS spectrum conforming to laboratory holes or opaque areas identifiration criteria observed Chrysotile AMPHIBOLES ' Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber ciameter apart Crocidolite’ Ambiguous C = Cluster {>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Manx Non-Identified Actinolite N;5D = Mo Structures Detected

CITY_21MC100_0 02852562

NYC-WTC_000212902