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TEM Asbestos air sample results, NYC BOE, June 2002
Machine-extracted title · confidence 95%Laboratory data sheet for TEM asbestos air analysis conducted by ATC Associates on June 13, 2002.
NYC-WTC_000184823Page image
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NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume Oitersk 1920 Lab Group #: 8082 Filter Type / Filter Area: MCE 385 mm" Lab Sample #: 20 Grid Opening Size: 0.01124
Client Sample #: 20 Area Examined: 0.04496 mm^
GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/13/02
Analysis Performed By: MARK PEYSAKHOV
GO. Structure Structure Type Length ID of Structure Norv EDS (Nonadb No F B C M >=05 p Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements)
J
Struct = > 0.5g > 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 >5p 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 Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos M = Matrix Tremolite Actinolite Non-Identified NSD = No Structures Detected
CITY_21MC100_003105644
NYC-WTC_000184823
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NYC-WTC_000184823Source: NYC Law Department, mirrored locally
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