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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_000175463
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Scanned page image, NYC-WTC_000175463
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OCR status: ok · source: pdftotext

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name NYC BOE Volume (liters) 1928 Lab Group # 8739 Filter Type / Filter Area MCE 38bmm I ab Sample # 9 Grid Opening Size 0 01124 Client Sample # 9 Area Examined 0 04496 mm^ GRID BOX Magnification 20 000 GRID ID Accelerating Voltage too 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 os'p i> 5(J Chrys Amphibole Nonasb Ambig/NO , No Coord 5|J Elemenis)

O’ 3, VZ ft ---------------

Struct = > 0 5p >51 Aspect Ratio Gnd acceptance

'I Positive diffraction pattern properties conforming to <50/ undissolved filter overiapped or folded Tot^ 10/ partculate coverage 50/ coverage ate laboratory identificabon critena observed least 20 unfolded or ovedapped gnd squares 5 / F B C M 5p '/ EDS spectrum conform ng to laboratory holes or opaque areas identification entena observed Chrysotile AMPHIBOLES Amphibole F Single F bet Amosite 8 Bundle ( 3 fibers 1 f herdameler apart Crocidolite Ambiguous C Cluster ( 3 intersections) Anthophyllite Non Asbestos Tremolite M Matrix Actinolite Non Identified NSD No Structures Detected

CONFIDENTIAL, CITY_21MC100_003431146 SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000175463

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NYC-WTC_000175463Source: NYC Law Department, mirrored locally

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