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 #: 9035 Filter Type / Filter Area: MCE 385 mm2 Lab Sample #: 34 Grid Opening Size: 0.01124
Client Sample #: 34 Area Examined: 0.24728 mm2
GRID BOX: f t(7 L/ Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 22 Analysis Date: 10/29/02
Analysis Performed By: ROMAN PEYSAKHOV
GO. Structure Structure Type Length 10 of Structure N or EDS (Nonadb No F B C M >~5 ~, >=5p rhrys Amphibole Nonasb Ambig/ND No Coord <5N Elements)
(
. 'Y i3 tf
tt 7: Z r' . / 7 3 2 tt 3 - c 2 .I . fi;/ /Jz- t 4 Z /r r, 21 1, 7Z_. r,
Ii] I______ i A PhotoNo. (from in asbestos con was samoies V1I J al.liCfJlal ll:li. Struct = > 0.5N > 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 critera observed least 20 unfolded or overlapped gnd squares <5% F B i C yj >5l: holes or opaque areas J= EDS spectrum conforming to laboratory Chrysotile identification criteria observed AMPHIBOLES Amphibole = =Single Fiber Amosite Ambiguous B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite C = Cluster l>3 Intersections) Anthophyllite Non-Asbestos Tremolite NI = Matrix Actinolite I Non-Identified NSn = No Structures Detecteo — --t--- -----1__ _ ._ . . ..
NYC-WTC 000131571
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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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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
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