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TEM Asbestos Air Sample Results, NYC BOE, June 2002
Machine-extracted title · confidence 95%Laboratory results for TEM asbestos air sampling conducted at NYC Board of Education facilities on June 22, 2002.
NYC-WTC_000179863Page image
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NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1800 Lab Group #: 8214 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 11 Grid Opening Size: 0.01124
Client Sample #: 13 Area Examined: 0.04496 mm^
GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/22/02
Analysis Performed By: MARK PEYSAKHOV
GO. Structure Structure Type Length ID of Structure N or V EDS (Nonadb No F B C M >=05 p :>-5iJ Chrys Amphibole Nonasb Ambig/ND No Coord <5(J. . > Elements)
1
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 cmerage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5|J 'I-EDS spectrum conforming to laboratory holes or opaque areas identification criteria observed Chrysotile 'amphiboles' Amphibole F = Single Fiber Amosite Crocidolite;, Ambiguous B = Bundle (<3 fibers <1 fiber diameter apart C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos TremoHte' ■ M = Matrix Non-Identified Actinolftel NSD = No Structures Detected
CONFIDENTIAL, CITY_21MC100_003461722 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000179863
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NYC-WTC_000179863Source: NYC Law Department, mirrored locally
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