NYC-WTC_000229219

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume filters}: 1840 Lab Group #; 8002 Filter Type / Filter Area; MCE 385 mrn^ Lab Sample #: 17 Grid Opening Size; 0.01124 Client Sample #: 19 AreaExamin^ 0.04496 GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage; 100 KeV # Grid Openings: 4 Analysis Date: 6Z8/02

Analysis Performed By; MARK PEYSAKHOV

GO. Structure Structure Type Length IDotStmcture NorN EDS No Amphfcote Nonasb ArrtjigW (Nwadb No I Coord F B C M >s05u >=5m Chrys Elements} <5y

.----- 4^

i---- }

f------- r 1 I I

Struct = > 0.5p >5:1 Aspect Ratio Grid acceptance: Po^e diffraction pattern properties conforming to <50% undissotvsd Mter, overiapped or folded Totals latjoratory idenfficatron entena observed <10% paniculate coverage >50% coverage ale least 20 untaWed or overlapped grid squares <5% holes or opaque areas F B c M >5m V= EDS spectrum conforming to lattoralory identification enteria observed Chrysotile AMPHIBOLES Amphibole F = Single Hber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster !>3 Intersecdons) Antfiophyillte Non-Asbestos Trennollte M = Matix Actinolite Non-ldentified N SO = No Structures Detected

CITY_2IMCl0 0_0 00491737 NYC-WTC_000229219