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): 3610 Lab Group #: 9035 Filter Type / Filter Area: MCE 385 mm2 Lab Sample #: 42 Grid Opening Size: 0.01124 Client Sample #: 42 Area Examined: 0.24728 mm2 GRID BOX: /4'7Y ' 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 ID of Structure Nor EDS Chrys (Nonadb No F B C M >05p >=51.i Amphibole Nonasb Ambig/ND Elements) No Coord <5N 6 ._c i
'P1" __ ________ __ __
7 2 If G._ / l TZ r l7 t SF 7 ' (r 17&Z If (- X2 ri t 2
2Z- 2, ( I. I I ! l
__ I 11 ± ______ ___ ______ I A PhotoNo. m in asoestos conta a samo es (.,nu
accep[ance:
Struct = > 0.5p > 5:1 Aspect Ratio <50% undissolved filter, overlapped or folded Totals v = Positive aiffraction 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 >5p holes or opaque areas v= ECS soecrum conforming to laboratory Chrysotile
• identification criteria observed F = Singfe Fiber B = Bunale (<3 fibers <1 fiber diameter apart AMPHIBOLES Amosite Crocidolite I Amphibole Ambiguous i
C = Cluster (>3 intersections) Anthophyllite Non-Asbestos Tremolite M= Matrix von-Identified : ; Actinolite NSD = No Structures Detected
NYC-WTC 000131579
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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
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