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 #: 9045 Filter Type / Filter Area: MCE 385 mm2
• Lab Sample #: Client Sample #: 6 18 Grid Opening Size: 0.01124 Area Examined: 0.24728 mina
GRID BOX: Magnification: 20,000 GRID ID: _____ Accelerating Voltage: 100 KeV # Grid Openings: 22 Analysis Date: 10/31/02
Analysis Performed By: ROMAN PEYSAKHOV
GO. Structure Structure Type Length ID of Structure N or EDS Chrys Amphibole Nonasb AmbigIND (Nonadb No F 8 C M >05i- >=5N Elements) No Coord <5u
IT 7>< 2 — / '/ _______ ___ __ __
. fo-15' s~ . ~ ,mss.__ ' . -5r 32_ _ •
7"z 1O-7 ~I Z
v
• / f "7 1•-' tr i /, 1 9 69 31-t Photo No. m 1in 5 as es containing samp es) Grid acceptance: Struct = > 0.5µ > 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 >5i , holes or opaque areas 1= EDS spectrum conforming to laboratory Chrysotile identification criteria observed AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyilite Non-Asbestos I Tremolite I M = Matrix Actinoiite Non-Identified NSD = No Structures Detected
NYC-WTC 000131643
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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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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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