NYC-WTC_000200979

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 7790 Filter Type / Filter Area: MCE 385 mm" Lab Sample #: 15 Grid Opening Size: 0.01124 Client Sample #: 15 Area Examined: 0.04496' mm^ GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 AnaJysisDate: 5/18/02

Analysis Performed By: ROMAN PEYSAKHOV

GO.. Structure Structure Type Length ID of Structure N or 7 EDS No (Nonadb F B C I M >=05 p >=50 Chrys Amphibcle Nonasb Ambig/ND No Coord <5p Elements) .

7^53 z: f -N—

. Struct - > O.Sli > 5 J Aspect Ratio Grid accepiaiice; 7= Positive diffraction pattern properties conforming to ‘^50%'ur.d’ssclved filter, overlapped orfolded Totals laboratory identification criteria obsen/ed <10% particulate coverage >50% coverage ate least 20 unfolded or overtappec grid squares <5% F. B C i M '>5p V= EDS spectrum conforming tc laboratory holes or opaque areas ■ identification criteria observed Clirysotile AMPHiBQLBS Amphibole F = Single Fiber Amosite B = Bundle <3 fibers <1 fiber diameter apart ■ Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC100_011275324

NYC-WTC_000200993