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 #: 9041 Filter Type / Filter Area: MCE 385 mm2 Lab Sample #: 1 Grid Opening Size: 0.01124
Client Sample #: 04 Area Examined: 0.24728 mm2
GRID BOX: Magnification: 20,000 GRID ID: _f" Accelerating Voltage: 100 KeV # Grid Openings: 22 Analysis Date: 10/30/02
Analysis Performed By: ROMAN PEYSAKHOV
GO. Structure Structure Type Length ID of Structure Nor V EDS Elements No F B C M >0511 >=5u Chrys Amphibole Nonasb Ambig/ND No Coord Elements) <5P r< n f' s Z—
4 ~7 z _ v
fr 1z( —z ' 27— - 3 2-3( (6 z. i ,-3 3 (t 3?-3_ fZ 1-Z . 1-3 (( K—
1 3 (7 7SD t1 -cz 3 "5S
r ,
____ 111111 ___ (th hL ___ ___ ____
^............................-e i irn es► Grid acceptance: Struct = > 0.511 > 5:1 Aspect Ratio <50% undissolved filter, overlapped or folded Totals N = Positive diffraction pattern properties conforming to <10% particulate coverage >50% coverage ate laboratory identification criteria observed least 20 unfolded or overlapped grid squares <5% fi r: B C Mi »u holes or opaque areas i= EDS spectrum conforming to laboratory Chrysotile identification criteria observed AMPHIBOLES Amphibole. • F = Single Fiber Amosite 8 = Bunale (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyilite Non-Asbestos I j Tremolite M =Matrix Actinolite Non-Identified NSD = No Structures Detected
NYC-WTC 000131497
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Chain of custody documentation for background sampling including asbestos and lead at 250 Broadway in September 2001.
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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.
14 shared non-person entities · similarity 0.946
machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000095478
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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Second volume of ambient air sampling and visual observation results for 105 Duane Street after the WTC collapse.
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