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 #: 16 Grid Opening Size: 0.01124 Client Sample #: 19 Area Examined: 0.04496 mm2
GRID BOX: Magnification: 20,000 GRID ID: _F t" Accelerating Voltage: 100 KeV # Grid Openings: 4..2 z- Analysis Date: 10/30/02
Analysis Performed By: ROMAN PEYSAKHOV
GO. Structure Structure Type Length ID of Structure N or EDS Chrys Amphibole Nonasb Ambig/ND ilVonadb No F B C M >=05 Elements) No Coord <5P / —i36
ft -IS) jjQz ~S--~ rt 3 16-/6 7 e "i(
/9t- 2 '~z. -Q S`
.' 7-2 v
s.. 2Z-ZZ ti "~SZ3l
c— V' tiL -^ J
T Q Photo o. (from 1 in 5 asbestos contafiiiia sarnolesi U1IU C7tl:Cf,7t(A I . Struct = > 0.5p .> 5:1 Aspect Ratio <50% undissolved filter, overlapped or folded Totals 1= 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 >5u = EDS spectrum conforming to laboratory ioentifiption criteria observed holes or opaque areas
AMPHIBOLES Chrysotile Amphibole i -r _____
F = Single Fiber Amosite Ambiguous t B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite C = Cluster (>3 intersections) Anthophyllite Non-Asbestos i Tremolite M = Matrix Actinolite von-Identified NSD = No Structures Detected --_ __ 1
NYC-WTC 000131513
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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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machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000129725
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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