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: NICE 385 mm2 Lab Sample #: 8 Grid Opening Size: 0.01124
Client Sample #: 11 Area Examined: 0.24728 mm2
GRID BOX: 1g 7.S: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 22 Analysis Date: 10/30/02
Analysis Performed By: ROMAN PEYSAKHOV
GO. Structure Structure Type Length ID of Structure Nor EDS (Nonadb No F B C M >05 is >=5p Chrys Amphibole Nonasb Ambig/ND No Coord <5 Elements)
2 —3 Al 2. ._.
[1-1i v
. '3---I V
It k I -- V i2. C. 2- 2'Z —Z3
•2 7 4
2M - 3/ V [7 z :32'3 V v
/ 1 v1 ,
A Photo No. Prom 1in5 asbestos con inrno samo iiF owupwi+k4. elm
Struct = > 0.5}i .> 5:1 Aspect Ratio <50% undissolved filter, overlapped or folded Totals v Positive diffraction pattern properties conforming to <10% particulate coverage >50%gridcoverage ate squares <5% laboratory identification criteria observed least 20 unfolded or overlapped F B C M >5i holes or opaque areas 4= 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 ( i C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Actinolite onIdentiriedflflfl NSD = No Structures Detected _ _ . ._
NYC-WTC 000131504
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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.
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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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