NYC-WTC_000196847

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 9210 Filter Type / Filter Area: MCE 385 min- Lab Sample 15 Grid Opening Size: 0 01124

Client Sample #: 17 Area Examined: 0 04496 mm=

GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: too KeV # Grid Openings: 4 Analysis Date: 12/26/200

Analysis Performed By: MARK PEYSAKHOV

1 GO Structure Structure Type Length ID of Structure Nor'/ EDS No (Nonadb F B C M >=05 p :>=5(J Chrys Amphibole Nonasb Ambig/NO No Coord <5m Elements)

I r ; I I j : ~ Photo No (from 1 in o asbestos containing samp es) Gnd acceptance Struct = > 0 5u >5.1 Aspect Ratio <50% undissolved filter, overtapped or folded Totals y= Positive diffraction pattern properties conforming Io <10% particulate coverage >50% coverage ate laboratory identification cntena observed least 20 unfolded or overiapped gnd squares >5u i F B C <5% noIes or opaque areas EDS spectrum conforming lo laboratory identification cntena ooserveo Chrysotile AMPHIBOLES I Amphibole = Single F'ber Amosite 3 = Sunale (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster {>3 Iniersections) Anthophyllite Tremolite Non-Asbestos M = Matrix Actinolite I----- Non-Identified NSC = No Slructures Detected

4? • - CITY_21MC100_003043185

NYC-WTC_000196847