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 #: 9047 Filter Type / Filter Area: MCE 385 mm2 Lab Sample #: 2 Grid Opening Size: 0.01124 Client Sample #: 04 Area Examined: 0.24728 mm2 GRID BOX: > ~ Magnification: 20,000 GRID ID: /c 4's Accelerating Voltage: 100 KeV # Grid Openings: 22 Analysis Date: 11/2/02
Analysis Performed By: f'___ MARK PEYSAKHOV
GO. Structure Structure Type Length ID of Structure Nor EDS No >C5 N Amphibole Nonasb AmbigIND (Nonadb F B •C M >=5p Chrys Elements) No Coord <5N
. ,7r ,- v -3 Z 7 ,--Zf ..
/474 /
p _ - .7 • "J _J y— ~~
/p , er g , — s:.. .z ea , i-'.a' / u , K9 ' ti
A Photo No. m In 5 asbestos con mina samo es <50 au Struct = > 0.5p > 5:1 Aspect Ratio undissolved filter, overlapped or folded Totals v= 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 >51.i holes or opaque areas i= EDS spectrum conforming to laboratory Chrysotile identification criteria observed . ' MPHIBOLES Amphibole. F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified + Actinolite NSD = No Structures Detected __
NYC-WTC 000131588
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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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Summary of transmission electron microscopy results for asbestos samples from 250 Broadway dated September 16, 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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