Chain of custody and cover letter for transmission electron microscopy analysis of air samples from apartments at 125 Liberty Street.
NYC-WTC_000131492–000131727
OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet Client Name: ATC Volume (liters): 3600
• Lab Group #: Lab Sample #: Client Sample #: 9041 13 16 Filter Type / Filter Area: MCE 385 mm2 Grid Opening Size: 0.01124 Area Examined: 0.24728 mm2 GRID BOX: /I_/73 Magnification: 20,000 GRID ID: 7 Accelerating Voltage: 100 KeV # Grid Openings: 22 Analysis Date: 10/30/02
Analysis Performed By: kP ROMAN PEYSAKHOV
GO. Structure Structure Type Length ID of Structure N or ( EDS No F B C M > 05 1J >=5N Chrys Amphibole Nonasb Ambig/ND No , Coord <5u Elen is)
H'- ' _____ _________
v i ^y I~
v • 3—1 z (3W2 24J i L'. '" ~. :C Z 7C- 4- 2 Z r/
'ii- P Z- r vim- -8 - 3— t/ fl23 33--fl 3 r 7 t/ -- S 3® 0 o. m in as con mno sam ir TT t. IIU a pwax. Struct = > 0.5N > 5:1 Aspect Ratio <50% undissolved filter, overlapped or folded < Totals d= Positive diffraction pattern properties conforming to <10% particulate coverage >50% coverage ate laboratory identification criteria observed least 20 unfolded or overlapped grid squares <5% F B C M >5N holes or opaque areas
• 'I= EDS spectrum conforming to laboratory Chrysotile identification criteria observed ' AMPHIBOLES Amphibole. F = Single Fiber j Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) i Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected
NYC-WTC 000131613
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Report of transmission electron microscopy analysis for bulk samples from 250 Broadway dated September 16, 2001.
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A document label identifying the location as 140 Broadway and 70 Liberty Street with a unique NYC-WTC tracking number.
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Custody form documenting the transfer and analysis of air samples collected at 125 Water Street in September 2002.
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Cover page for an air monitoring and bulk sampling report for Building #200 at 375 South End Avenue.
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machine-extracted · confidence unavailable · Check page ↗Similar subjects in other documents. Similarity does not establish the same event, measurement or conclusion.
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NYC-WTC_000123875
Letter from environmental consultants summarizing ambient air sampling and cleanup activities at 225 Rector Place.
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