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TEM Asbestos air sample data, Sample 5, March 2002
Machine-extracted title · confidence 95%Technical data sheet for the fifth transmission electron microscopy analysis of an air sample collected from a NYC Board of Education site in March 2002.
NYC-WTC_000181682Page image
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NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1952 Lab Group #: 7247 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 5 Grid Opening Size: 0.01124
Client Sample #: 05 Area Examined: 0.04496 mm^
GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/28/02
Analysis Performed By; MARK PEYSAKHOV
GO. Structure Structure Type Length ID of Structure N or EDS (Nonadb No F B C M >=05 p >=5p Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements)
.-T
■ i
Struct = > 0.Op >5:1 Aspect Ratio Grid acceptance: Totals laboratory identification criteria observed least 20 unfolded or overiapped grid squares <6% B C M V= EDS spectrum conforming to laboratory holes or opaque areas I F >5u
identification criteria observed Chrysotile i AMPHIBOLES i Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite i Non-Asbestos T remolite M = Matrix Actinolite Non-Identified NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC1OO_OO3468791 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000181682
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NYC-WTC_000181682Source: NYC Law Department, mirrored locally
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Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a New York City Board of Education site.
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Laboratory report documenting transmission electron microscopy analysis of air samples collected from NYC Board of Education facilities in March 2002.
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