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NYC-WTC_000229746
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NYC 9/11 Public Portal Document
TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume filters): 1920 Lab Group #: 8138 Filter Type / Filter Area; MCE 385 mm’ Lab Sample #: 7 Grid Opening Size: 0.01124
Client Sample #: 07 Area Examined: 0.04496
GRID BOX: Magnification: 20,000 GRID ID: 3 Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/17/02
Analysis Performed By: MARK PEYSAKHOV
GO, Structure Structure Type Length ID of Structure N or EDS No (Noriadb F B C M >=05 M >=5p Chrys Amphibole Nonasb Ambig/ND No Coord <5p Elements)
a
Struct = > O Sg > 5; I Aspect Ratio Grid acceptarice: V = Positive difIraction pattern properties conforming to undissolved filter, overlapped or folded Totals laboratory Identificalion criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M "/= 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
CONFIDENTIAL, CITY_21MC100_003387871
SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000229746
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NYC-WTC_000229746Source: NYC Law Department, mirrored locally
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