NYC-WTC_000203507

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1944 Lab Group #: 9204 Filter Type / Filter Area: MCE 385 mm' Lab Sample #: 3 Grid Opening Size: 001124 Client Sample #: 3 Area Examined: 0 04496 mni-

GRID BOX: /s~z/ Magnification: 20,000 GRIDID; Accelerating Voltage: too KeV # Grid Openings: 4 Analysis Date: 12/23/200

Analysis Performed By: ROMAN PEYSAKHOV

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

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2 L( G

i ; R Photo No (Irom 1 in o asbestos containing sampes) Gnd acceptance Struct = > 0 Su >51 Aspect Ratio <50% undissolved filter, overlapoed or folded Totals Positive aiffraction eattern prooenies conforming Io <10% particulate coverage >50% coverage ate laboratoiy identification cntena observed least 20 uniolded or overiapped gna squares >5|J ; <5% holes or opaque areas F B C N( v= EDS soectrum conforming to laboratory Identification cntena observed Chrysotile I AMPHIBOLES Amphibole F = Single Finer Amosite B = Bundle (<3 fibers <1 fiber diameier apan Crocidolite Ambiguous C = Cluster (>3 Intersections) ! Anthophyllite Tremolite Non-Asbestos I M = Matrix Actinolite Non-Identified I------ NSD = No Structures Cetected

CITY_21MC100_003058348

NYC-WTC_000203507