NYC-WTC_000229195

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1832 Lab Group #; 7978 Filter Type / Filter Area: MCE 385 mm’ Lab Sample #: 10 Grid Opening Size: 0.01124 Client Sample #; 12 Area Examined: 0.04496 mm’ GRID BOX; Magnification: 20 000 GRID ID; Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 6/5/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length IDofSftucfcre Nor V EDS No >s05[j Nonasi) AiTtog.'N'D (Nonadb F B C M >=5p Chrys AmpMboto No ‘ Coord <5p elements)

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Struct = > 0,5g >5:1 Aspect Ratio Grid acceptance: Positive diffracton pattern properties conforolno to <50% undissotved later, overlapped or folded Totals laboratory identification crtena observed <10% partlculatB coverage >50% coverage ale least 20 unfolded or overtapped grid spuares <5% F B C M >5p EDS spectrum conforming to laboratory holes or opaque areas idendficatlon crtteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart CroddoHte Ambiguous C = Cluster (>3 Intersections) AnttwptiylHte Non-Asbcstos Tremolite M = Matra Non-Identified Actinolite NSD = No Structures Detected

CITY_2IMCl0 0_0 00491682 NYC-WTC_000229195