NYC-WTC_000202627

NYC 9/11 Public Portal Document

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ATC ASSOCIATES. INC. TEM ANALYSIS LABC£ROUej 565iJ-JjJ^^

Lab .Sanple No. £22X2 Filter T'^'pe MCE 25 mm Operator

Client Sol. No. M3HS-B>5-1C 335 "m'Z

Instrunenc I.D. EM 10 CRX Disk No Scrasn Magnification I5.400X ■;gg. •j 01124 mm "2 Comments Acc . Voltage 8 0 kV No. CO -Q De Analysed _4 147 Struct. CorSDd C s mm * 2

I.D. of Structure EDS GO. structure Structure Type Length (Nonasb. No. Coord. No. >0.5 um F B C M < 5 um Sum Chrys. Amphibole Nonasb. Ambig./ND Elements)

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1....... .. I. r Photo No. (from 1 in 9 aabeatos- Identify all atructurea uaing BPS Chee c diffreotioa Cor aabeatos »irei[U£_Jn70«/An (let 4) Lore all unrepeated spectra—^

containing samples) Grid aceentance; I struct! lapped taFToTSed”” <S0X undlasolve^ niter, overli Struct. = > 0.5um Je > 9:1 Aapect Ratio <10X particulate coverage >dOX coverage Totals. Ns Net Observed (EOS spectrum or diffraction pattern) at leaat 20 unfolded or overlapped grid squares PosiUvs diffracUon patUm praperUaa conforming <5% holes or opaque areas F B C M > Sum Lb laboratory IdsnUfleatlen criteria observed. Inuaad / fllUr Chrysotile of (LiO) and (130) rafiecUona. of'niter For ampblbateas O.SSnm layer line repeat, and approx. Portion tl niter (Smm wide) a.a rsUo of nen-tvianed layer llae spot spacing to aubiMl la Amphibole layer Uns repeat distance (O.Mnra). •uminaUen ,/= EDS spectrum conforming to labcrstory Identification criteria oOserved. AMPHIBOLES Ambiguous , Fo Single Fiber (1-3 Interseetlons =1-3 fibers) Amosite Bo Bundle {>3 fibers <1 fiber diameter apart) __________________ ZSmm nitar Crocidolite Non-aabeatos S- bSST NSD= No Structure. DBUctari L:\aATA\PRlVATE\NlKIC\CADDVBM3 ,--------- i stopping Rulm: 1------

fl/ZZ/98 □ Anthophyllite Tremolite Actinolite Non-Identified ,

CITY_21MC100_003274241

NYC-WTC_000202647