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TEM asbestos air sample results, NYC BOE, Mar 2002
Machine-extracted title · confidence 50%Laboratory report documenting transmission electron microscopy analysis of air samples collected from NYC Board of Education facilities in late March 2002.
NYC-WTC_000183507Page image
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NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet Client Name: N^’C BOE Volume (liters): 1824 Lab Group #: 7174 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 1 Grid Opening Size: 0.01124
Client Sample #: 04 Area Examined: 0.04496 mm-
GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: too KeV # Grid Openings: 4 Analysis Date: 3/23/02
Analysis Performed By: MARK PEYSAKHOV
GO. Structure Structure Type Length ID of Structure N or 7 EDS (Nonadb No F B C M >=05 M >=5|j Chrys Amphibole Nonasb Ambig/ND Elements) No Coord '5m
27
o Struct = > 0.5m >5:1 Aspect Ratio Grid acceptance:
7= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B ( \! >5p 7 = EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile ---- ---- AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite AmbiguousT C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified NSD = No Structures Detected Actinolite 1
CITY_21MC100_003102727
NYC-WTC_000183507
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NYC-WTC_000183507Source: NYC Law Department, mirrored locally
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Laboratory analysis report for TEM asbestos air sampling conducted for the NYC Board of Education on March 31, 2002.
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Laboratory report documenting transmission electron microscopy analysis of an air sample collected by the NYC Board of Education on April 20, 2002.
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Laboratory analysis report for TEM asbestos air sampling conducted for the NYC Board of Education on March 25, 2002.
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machine-extracted · confidence unavailable · Check page ↗NYC-WTC_000183002
Laboratory data sheet recording transmission electron microscopy analysis of an air sample collected from a New York City Board of Education facility.
8 shared non-person entities · 1 shared topics · similarity 0.997
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Laboratory data sheet recording transmission electron microscopy analysis of an air sample collected from a NYC Board of Education site.
Similarity score 0.999 (not a probability)
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Laboratory data sheet recording transmission electron microscopy analysis of an air sample collected from a New York City Board of Education site.
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