NYC-WTC_000229218

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1824 Lab Group #: 8002 Filter Type /FUter Area; MCE 385 mm- Lab Sample #: 16 Grid Opening Size: 0.01124 ClieDtSamole #: 18 Area Examined: 0.04496 mm^ GRIP BOX; Magnificatioa: 20,000 GRIP ID: Accelerating Voltage: 100 KeV # Grid Openings; 4 Analysis Date; 6/8/02

Analysis Performed By: MARKPEYSAKHOV

’ GO. Structure Structure Type Length IO of Structure N or V EDS No >=05 U (Nonadb F B C M >=5p Chrys Amphfeola Nonub Ambn/NO ' No; Coord <5p Elements) ■ —

II—-+I

3

Struct = > 0.5g > 5:1 Aspect Ratio Grib acceptance: V= Postbve diffraction pattem properties conformtng to <50% undlsso^ed fitef. overiapped orlolded Totals laboratory identilicatlon critena observed <10% particulate cowage >50% awage ate mat SI unfolded or owifopped grid squares <5% F B C M ’Sp EDS spectrum contorming to laboratory holes Of opaque area identification criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 Abets <1 Aber diameter apart Crocidolite Ambiguous C = Cluster (>3 intersections) Anthophyllite Non-Asbestos Tremolite Matrix Actinolite Non-Identified NSO = No Structures Detected J

CITY_2IMCl0 0_0 00491736 NYC-WTC_000229218