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 5 08 Filter Type / Filter Area: MCE 385 mm2 Grid Opening Size: 0.01124 Area Examined: 0.24728 mm2 GRID BOX: ft7. Magnification: 20,000 GRID ID: 3 i"i! Accelerating Voltage: 100 KeV # Grid Openings: 22 Analysis Date: 10/30/02
Analysis Performed By: ____P ROMAN PEYSAKHOV
GO. Structure Structure Type Length 1D of Structure N or EDS (Nonadb No F B C M >:05i. >=5P Chrys Amphibole Nonasb Ambig/ND Elements) No , Coord <5}~ . r 7/I -- . v ->1aa... S'- 7 4 VZ -(
1 (9 -as
• C 3 L/ i l "' tz al-3 ,! IYR —3
t .3 -S~ .-. V(13 - X16 2 9 e'
I — 7 i __[___ Photo No.(From I n 5 asbestos contatnina samo es vna awep euc a: Struct = > 0.5p > 5:1 ASpect Ratio <50% 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 >5i' holes or opaque areas •1= EDS spectrum conforming to laboratory Chrysotile identification criteria observed AMPHIBOLES Amphibole F = Single Fiber Amosite 8 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Edon-Identified l Actinolite NSD = No Structures Detected
NYC-WTC 000131501
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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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