NYC-WTC_000229327

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume filters): 1808 Lab Group #: 8178 Filter Type / Filter Area: MCE 385 mm" Lab Sample #: 3 Grid Opening Size: 0.0 i 124 Client Sample #; 05 Area Examined; 0.04496 mm*

ian SEffiBSSi Magnificatton; 20 000 GRID ID; Accelerating Voltage: 100 KeV # Grid Openings; 4 Analysis Date: 6/19/02 Analysis Performed By: Pjr

ROMAN PEYSAKHOV

GO, Structure Structure Type Length ID of structure Nor 4 EDS No (Nonadb F 6 C M >=05 p >=5)2 Chrys Amphibole Nonasb AmbigW No Coord <5p Elements)

fvt--T .t—4

T 4 Struct = >0.5p >5-.l Aspect Ratio GrxJ aaeptance: Positiva diffraction pattern properties oonforming to <50% undissotved Alter, overlapped or folded Totals laboratory dentif’calron cnteria observed . <10% pardculate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% F B C M >5n 4 = EDS spectrum conlorming to laboratory holes or opaque areas identificalton criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite B = Bundle {<3 Ubers <1 fiber diameter apart CroddolitB Ambiguous ( C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite i M = Matrix AcUnolile Non4den5ficd NSD = No Sbucturas Delected

CITY_2IMCl00_000491965 NYC-WTC_000229327