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 #: 37 Grid Opening Size: 0.01124 Area Examined: 0.24728 mm2 Client Sample #: 37 GRID BOX: /Lf 7 (' Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 22 Analysis Date: 10/29/02
Analysis Performed By: ROMAN PEYSAKHOV
• 1.
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Photo No. (from 1 in 5 asbestos containing samples) Grid acceptance: Struct = > 0.5w > 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 >5u holes or opaque areas v= EDS spectrum conforming to laboratory Chrysotile 1 i identification criteria observed F = Single Fiber B = Bundle (<3 fibers <1 fiber diameter apart AMPHIBOLES Amosite Crccicciite --r-r- Amphibole 1 Ambiguous 1_____ 1l rr j
C = Cluster (>3 Intersections) Anthophyllite on Asbestos Tremolite M = Matrix Actinclite Non-Identified NSC = No Structures Detected
NYC-WTC 000131574
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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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