NYC-WTC_000222797

NYC 9/11 PuWic Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1816 Lab Group #: 6933 Filter Type / Filter Area: MCE 385 mm- Lab Sample #: 13 Grid Opening Size: 0.01124 Client Sample #: 16 Area Examined: 0.04496 _mm^ GRID BOX: Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 3/5/02

Analysis Performed By: ROMAN PEYSAK.HOV

GO. Structure Structure Type Length ID of Structure N or V EDS 1 ■■■“'No (Nonadb “ i F B C M '=5lJ Chrys Amphibole Nonasb Ambig/ND / J No Coord <5p Elements)

‘I ■Z 2. fl

Struct - -■ l),?u 5:1 Aspect Ratio Grid acceptance;

'/= Positive diffraction pattern properties conforming to <50% undissolved filter, overlapped or folded Totals laboratory identification criteria observed <10% particulate coverage >50% coverage ate least 20 unfolded or overlapped grid squares <5% f B C y'= EDS spectrum conforming to laboratory holes or opaque areas L j F identification criteria observed Chrysotile | ■A .VI PH I BOLES .Amphibole F = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite .Ambiguous C = Cluster (>3 Intersections) Anttioptiyllite Non-.Asbestos I Tremolite M = Matrix .Non-kitfiititied j Actinolite NSD = No Structures Detected

CITY_21MC1OO_OO2918942

NYC-WTC_000222797