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NYC-WTC_000210667

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NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet sample area analyzed

Client Name: ACS Environmental Services, Inc. Job#: 201112986 Volume (liters): 1 440.0 Lab Sample #: 03 Filter Type / Filter Area: MCE 385 mm2 Client Sample #: 0225.31-18 Grid Opening Size: 0.01000 Received: 11/19/2001 14:41:52 Area Examined: 0.06 mm2 Date Analyzed: 11/20/2001 Magnification: 20,552 Scope #: Accelerating Voltage: 100 KeV Analysis Performed by: Roman Peysakhov Location Gnd Fiber Length Width Fiber Type Morphology EDS Opemng /UM gM Orient. SAED Photo A3-5/3C 1 NSD u A3-5/3E 2 NSD u A3-5/3F 3 NSD u A4-4/3E 4 NSD u A4-4/3F 5 NSD u A4-4/3G 6 NSD u

NSD: No Asbestos Structures Detected Comments Structure Density Concentration Total Grid Openings: 6 (str/mm2) (str/cc air) Grid Evaluation Chrysotile Asbestos Structures: 0 <16.7 <0.0045 13 Grid Openings Covered > 50% Amphibole Asbestos Structures: 0 <16.7 <0.0045 3 Intact Grid Opening > 50% Asbestos Structures >=5 microns: 0 <16.7 <0.0045 3 Undissolved Filter < 10% Total Non-Asbestos Structures: 3 Folded Replica < 50% Total Asbestos Structures: 0 <16.7 <0.0045 13 Filter Loading < 10% Analytical Sensitivity: 16.7 0.0045 3 Particulate Even

CITY_21MC1OO_OO285O397

NYC-WTC_0002 10667

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NYC-WTC_000210667Source: NYC Law Department, mirrored locally

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