NYC-WTC_000201309

NYC 9/11 Public Portal Document

TEM Asbestos fair) Count Sheet Client Name: NYC BOE Volume (liters): 1920 Lab Group #: 7353 Filter Type / Filter Area: MCE 385 mm’ Lab Sample #: 14 Grid Opening Size: 0.01124 Client Sample #: 14 Area Examined: 0.04496 GRID BOX: / Magnification: 20,000 GRID ID: Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 4/7/02

Analysis Performed By: micha;£ gorycki

GO. Structure Structure Type Length ID of Structure Trot 7 EDS (Nonadb No F B C M >=05 M Chrys ' Amphibole Nonasb | Ambig/ND No Coord <5u Elements) 9 ?<' zzzs aJS'V

>1

Struct— > 0.5(1 .> 5:1 Aspect Ratio Grid acceptance: 7= Positive oiffraction pattern properties conforming to <50% undissblved filter, overlapped or folded Totals laborato.y identification criteria observed <10% particulate coverage >50% coverage ate . least 20 unioded or overlapped grid squares <5% F B C M >5p 7= EDS spectium confcrmng to laboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole r = Single Fiber Amosite B = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 Intersections) Anthophyllite Non-Asbestos Tremolite M = Matrix Non-Identified Actinolite NSD = No Structures Detected

CITY_21MC100_0112T5611

NYC-WTC_000201322