7 shared non-person entities · 1 shared topics · similarity 0.982
machine-extracted · confidence unavailable · Check page ↗Document / 1 page
TEM asbestos air sample data sheet, Sample 4, March 23,
Machine-extracted title · confidence 90%Technical data sheet recording laboratory parameters and microscopy details for the fourth air sample analyzed on March 23, 2002.
NYC-WTC_000181593Page image
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NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet Client Name: LPr'C BOE Volume (liters): 1920 Lab Group #: 7170 Filter Type / Filter Area: MCE 385 mm- Lab Sample #; 4 Grid Opening Size: 0.01124 Client Sample #: 04 Area Examined: 0.04496 mm" GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/23/02
Analysis Performed By: --- MARK PEYSAKHOV
GO. Structure Structure Type Length ID of Structure N or EDS (Nonadb No F B C M >=05 p >=5|j Chrys Amphibole Nonasb Ambig/ND No Coord <51J Elements)
Struct = > 0.5p > 5:1 Aspect Ratio Grid acceptance: 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 C M >5(j EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chiysotile AMPHIBOLES , Amphibole F = Single Fiber Amosite B - Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC1OO_OO3468686 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000181593
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NYC-WTC_000181593Source: NYC Law Department, mirrored locally
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