NYC-WTC_000229035

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume filters): 1800 Lab Group #; 7835 Filter Type / Filter Area; MCE 385 mm’ Lab Sample #: 14 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: 5/23/02

Analysis Performed By: ROMAN PEYSAKHOV

GO. Structure Structure Type Length to of SPucture N or V EDS

, No Coord No F a c M <5p >=5p Chrys Amphibote Nonasb Ambig/NO (Nonadb Elements) ;

(f

6^ i

Struct = >G.5p >5:1 Aspect Ratio Grid acceptance: 'i- PositVB diffraction pattern properties conforming to <50% undissotved filter, cveflapped or towed Totals tatxiratory identificatlan cnteria observed <10% particulaie coverage >50% coverage ate least 20 untokJed or overlapped grid squares <5% F B C M V= EDS spectrum cpntoiming to laboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite Crocidolite Ambiguous B = Bundle (<3 fibers <1 liber diameter apart C = Cluster (>3 Intersections) Anthophyllite Non* Asbestos Tremolite M’Matnx Actinolite Non-Identified USD = No Struciures Detected

CITY_21MC100_002902079

NYC-WTC_000229035