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TEM Asbestos air analysis results, Oct 2001

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Laboratory report presenting transmission electron microscopy analysis of an air sample for asbestos received October 1, 2001.

NYC-WTC_000174940
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NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet sample area f analyzed

Client Name: HP ENVIRONMENTAL, INC. Jab#: 101101001 Volume (liters): 0.0 Lab Sample #: 08 Filter Type / Filter Area: MCE 385 mm2 Client Sample #: ET-TRL-0929-FB2 Grid Opening Size: 0.01003 Received: 10/01/2001 02:00:17 Area Examined: 0.10030 mm2 Date Analyzed: 10/01/2001 Magnification: 20,000 Scope #: 4 Accelerating Voltage: 100 KeV Analysis Performed by: Thomas R. McKee Location Grid Fiber Length Width Fiber Type Morphology EDS Orient. SAED Photo Opening mm D7-C3/1 1 NSD u D7-E3/1 2 NSD u D7-F3/1 3 NSD u D7-G3/1 4 NSD u D7-H3/1 5 NSD u D6-C2/6 6 NSD u D6-E2/6 7 NSD u D6-F2/6 8 NSD u D6-G2/6 9 NSD u D6-H2/6 10 NSD u

1 4

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

CONFIDENTIAL, CITY_21MC100_013442374 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000174940

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NYC-WTC_000174940Source: NYC Law Department, mirrored locally

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TEM asbestos air analysis results, Oct 2001

NYC-WTC_000174937

Laboratory report from HP Environmental Inc. detailing transmission electron microscopy analysis of an air sample received October 1, 2001.

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