NYC-WTC_000188449

NYC 9/11 Public Portal Document

TEM Asbestos (air) Count Sheet Client Name: NYC BOE Volume (liters): 1816 Lab Group#: 7872 Filter Type / Filter Area: MCE 385 mm^ Lab Sample #: 7 Grid Opening Size; 0.01124 Client Sample #: 10 Area Examined: 0.04496 GRID BOX: Magnification; 20,000 Accelerating Voltage: 100 KeV # Grid Openings: 4 Analysis Date: 5/25/02

Analysis Performed By; ROMAN PEYSAKHOV

GO. Structure Structure Type Length ID of Structure Norv EOS No (Nonadb F B C M >=05 M Chrys Amphkiole Nonast) AmbtgiW No Coord <5p Etenwib)

Struct = > 0.5g > 5:1 Aspect Ratio Grid acceptance: '/’Positivodiffrsction pattern ortsoertiesccnformtnq to rosarveoerraaionpauem propemes conwriwigw undissolvod fitter, overlapped or folded >50% coverage ate Totals laboratory identfiicalion criteria observed least 20 unfaded or overiapped grid squares <5% F B C M >5m V= EDS spectrum oonformtng to laboratory holes or opaque areas identification criteria observed Chrysotile AMPHIBOLES Amphibole F = Single Fiber Amosite 8 = Bundle (<3 fibers <1 fiber diameter apart Crocidolite Ambiguous C = Cluster (>3 intersections) AnthophyWte Non-Asbestos Tremolite M = Matrix Non-Idcntificd Actinolite NSD = No Structures Detected

CITY_21MC100_003080563

NYC-WTC_000188455