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TEM Asbestos air sample results, NYC BOE, Aug 2002
Machine-extracted title · confidence 95%Laboratory report documenting transmission electron microscopy analysis of an air sample collected by the NYC Board of Education.
NYC-WTC_000175466Page image
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NYC 9/11 Public Portal Document
TEMAsbestnsfairlCmintSh^ Client \imc NYC BOE Volume (liters) 1944 Lab Group # 8739 Filter Type / Filter Area MCE 38d mm Lab Sample # 14 Grid Opening Size 0 01124 Client Sample # 14 Area Examined 0 04496 mm^ GRID BOX Magnification 20 000 GRID ID Accelerating Voltage 100 KeV # Grid Openings 4 Analysis Date 8/23/02
Analysis Performed By ROMAN PEYSAKHOV
GO Structure Structure Type Length ID of Structure Norv EDS (Nonadb No F B C M osTi ; 5p Chrys Amphibole Nonasb Ambg/ND No Coord Elements) 5m
1 1
Struct = > 0 5(1 >5 I Aspect Ratio Grid acceptance '/ Positive diffraction pattern properties conforming to <50/ undissolved filter oveiiapped or folded Totals laboratory dentification crtena observed 10/ particulate coverage 50/ coverage ale
'/ EDS spectrum conforming to laboratory least 20 unfolded or overlapped grid squares 5 / holes or opaque areas F B c M 5m 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 Tremolite M Matnx Actinolite Non Identified NSD No Structures Detected
CONFIDENTIAL, CITY_21MC100_003431151 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008
NYC-WTC_000175466
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NYC-WTC_000175466Source: NYC Law Department, mirrored locally
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