TEM Asbestos air analysis results, Oct 2001

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet sample area analyzed B" Client Name: HP ENVIRONMENTAL, INC. Job#: 101101001 Volume /liters): 570.0 Lab Sample #: 04 Filter Type / Filter Area: MCE 385 mm2 Client Sample #: ET-TRL-0929-A3 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: Whitney m Grid Length Width Location Opening Fiber /tM mm Fiber Type Morphology EDS Orient. SAED Photo B8-C3/3 1 NSD U BS-E3/3 9 NSD U B8-F3/3 3 1 2.5 .06 Chrysotile Matrix Mg, Si, Fe / 40056 40056 B8-G3/3 4 1 1.0 .06 Chrysotile Matrix Mg. Si, Fe / 12^1 B8-G3/3 4 2 1.30 .06 Chrysotile Fiber Mg, Si, Fe I B8-H3/3 5 NSD U B9-C3/3 6 NSD U B9-E3/3 7 1 4.6 .06 Chrysotile Cluster Mg, Si, Fe * B9-E3/3 7 2 1.75 .06 Chrysotile Fiber Mg, Si, Fe \ B9-E3/3 7 J 1.0 .06 Chrysotile Fiber Mg, Si, Fe / 1^ ^9-E3/3 7 4 12.75 .06 Chrysotile Matrix Mg, Si, Fe / 9-E3/3 7 5 1.5 .06 Chrysotile Fiber Mg, Si, Fe / B9-F3/3 8 1 1.25 .06 Chrysotile Matrix Mg, Si, Fe I 1^ B9-G3/3 9 1 2.25 '<06 Chrysotile Matrix Mg, Si, Fe I B9-H3/3 10 1 2.30 .’06 Chrysotile Matrix Mg, Si, Fe \

NSD; No Asbestos Structures Detected Comments Structure Density Concentration Total Grid Openings; 10 (str/mm2) (str/cc air) Grid Evaluation Chrysotile Asbestos Structures: 11 109.7 0.0741 Grid Openings Covered > 50% Amphibole Asbestos Structures: 0 <10 <0.0067 3 Intact Grid Opening > 50% Asbestos Structures >=5 microns: 1 10.0 0.0067 3 Undissolved Filter < 10% Total Non-Asbestos Structures; 3 Folded Replica < 50% Total Asbestos Structures: 11 109.7 0.0741 3 Filter Loading < 10% Analytical Sensitivity: 10 0.0067 3 Particulate Even 06.002243

CONFIDENTIAL, CITY_21MC100_013442370 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

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