8 shared non-person entities · 1 shared topics · similarity 0.998
machine-extracted · confidence unavailable · Check page ↗Document / 1 page
TEM Asbestos air sample results, NYC BOE, Feb 2002
Machine-extracted title · confidence 95%Laboratory report documenting transmission electron microscopy analysis of an air sample collected from a New York City Board of Education site.
NYC-WTC_000181008Page image
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OCR status: ok · source: pdftotext
NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 6629 Filter Type / Filter Area: MCE 385 mm" Lab Sample #: 2 Grid Opening Size: 0.01124
Client Sample #: 2 Area Examined: 0.04496 mm-
GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 2/11/02
Analysis Performed By: MARK PEYSAKHOV
GO. Structure Structure Type Length ID of Structure Nor v EDS (Nonadb No F B C M >==05 p >=5p Chrys Amphibole Nonasb AmbigtND No Coord <5|j Element)
<3
3
Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance: V = Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ale least 20 unfolded or overlapped grid squares <5% F B C M >5u ■/= EDS spectrum conforming to laboratory holes or opaque areas identification criteria obsen/ed Chrysotile i AMPHIBOLES Amphibole F = Single Fiber I Amosite B = Bundle (<3 fibers <1 fiber diameter apart ! Crocidolite Ambiguous C = Cluster (>3 Intersections) I Anthophyllite Non-Asbestos ! Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003467855 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000181008
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NYC-WTC_000181008Source: NYC Law Department, mirrored locally
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