NYC-WTC_000202627

NYC 9/11 Public Portal Document

ATC ASSOCIATES INC. TEM ANALYSIS LAE GRCTJP tti 565C .ij/oa/OL Geera-or Ll- P Lao Samp I* Mn 61 Flicsr Type MCE inm

Client Spl. No YBHS-5>b-:0/9-08 Piicer Area .3 8 5 mm^2 Instrumsi-xC, EM 10 CRX Grid I.E. MW/ Disk No. Screen Magnification 15 40ijX (GO) Area 0.01124 Tim Ccmme.acs Acc. Volcsge 3 0 kV No. GO co be Analysed 4 147 serucc. Corspd 7 0 3 /' mtn * 2 . !

GO. Structure Stnielup. Type Length I.D. of Structure EDS (Nonasb. No. >0.3 um No. Coord. F b!c M < 5 um Sum Chrys Amphibole Nonasb. Ambig./ND Elements)

.3 2 <2-

Photo No. (from I in 5 as leatoa- Identify ail etructurea using BPS Chee c diffraction for aabeatoi tore ail unrepeated spectra containinc aampiea) Grid acecpUnea;| atructuree op ULoT^/An (l»t 4) <50% undiaaoivea niter, overlapped, or foided Struct, 3 > O.Sum Ie > 5:1 Aspect Ratio <10X parUcuiate coverage >50% coverage Totals Ns Not Observed (EDS apeetrum or dlffracUon peUem) at least 20 unfolded or overlapped grid squares ““ * ‘ me -------------- Poaitire diffraction pettem propertica eonforminc F B C M > Sum Le iaboritary tdafttlflcaUon sritaria abaervad. lnua«d parUen For ebryaaUiK a.73ntn aaaelnc far (OSO) reflacUana. of niUr Chrysotile a.aSnm spacing far Iha ,ay«r line repaat straakiag -AMidvd portion qf (UQ) and <130) raflacUana. of niur Far amphlbolas: 0.03nni layer Una repeat, and approx. (Zmm wid«) a.a ratio of non-lwinned layer Une spot spacing to Amphibole layer line repeal dlstanca (Djanm). v/= SDS spectrum conforming to lahorelory Ambiguous idanUfication criteria obaarrad. AMPHIBOLES Ps Single Fiber (1-3 LntereecUoni 3 1-3 fibers) Amosite B- Bundle (>3 flbem <1 fiber diameter apart) Sfimm filter Crocidolite Non-asbestos £ SSST ------ 1 stepping ll«l» I------- Anthophyllite NSD= Ne Structures Detected | >^0 »/C-Q. or la let 4 G-3- | Tremolite Actinolite Non-Identified U\0ATA\PRIVATS\MlKEG\CAD0^M3 9/22/98

CITY_21MC100_003274226

NYC-WTC_000202632