NYC-WTC_000202627

NYC 9/11 Public Portal Document

ATC ASSOCIATES INC. TEM ANALYSIS LAE GROUP 5650 - 10/09,^01 Oceracor A Lab Sample No. 5C712 Fl leer Ty-pe MCE 23 mm Clrent 1'-. No. MBHS-3>6-10/g-20 Filter Area 395 rnm"2 Inscruraenc I.D. EM IJ DRX Grid I.D. Disk Nc.

Screen YagniiicaLion 15,40OX (GO) Area 0.01124 mm CominenLs.

Ac~. Voitace 8 0 kV No. GO 00 be Analyzed _4 3.147 Struct. Corsod. co 70 s/mm

GO. Structure Slmctu™ Type Length I.D. of Structure EDS >0,3 um (Nonasb. No Coord. No. F B C M > Sum Chrys. Amphibole Nonasb. Ambig./ND Elements) < 5 um

Photo Mo, (from 1 in 5 as Iwalos- Identify all structures usina EPS Check diffraction for aabeatoa Store all unrepeated spectra containing samples) Grid acceptance:}_______ .atnicturea up to 70i/An (lat 4) <S0% undissolved filter., overlapped ar folded Struct 3 i O.Sum A > 5;i Aspect Ratio <10X particuiate coverage >5056 coverage Totals N= Mot Observed (EDS spectrum or dlffraeUon pattern) at least 20 unfolded or overlapped grid aquares ,/= PosiUvs diffraction pattern properties eonforminc <SX holes or opaque areae F 5 C M > Sum to laboratory identifieation criteria observed. ■Unused porUon For ehrysoUle; O.TSam aMolne for (000) raflansUona. •f niter O-bSani •paoinr for Uta tavar lias raseat. straaidna Chrysotile ---------- partien of (HO) and (130) refleeUons. of niter For amphibolei: U.aanm layer lias repeat, ana appras.. Poruon ar lilUr (Emm aide) 3.5 ratio of non-tvinaad layer line spot ipaelBg to subject to Amphibole layer Una repeat diaUoea (Q.&Snm). •URilBoUan

vks EDS apeetruni eonfonnin< to laboratory idenUfication criteria observed. AMPHIBOLES Ambiguous Pa 3(n<ia Fiber (1-3 interaecUona s i-3 ribem) Amosite Ss Bundle (>3 riben <1 Hher diameter apart) C= CluaLer (>3 intenecUona) 2Bmm niUr Crocidolite Non—asbestos ------- 1 supping RuIm: i--------- , Anthophyllite M= Matrix NSD- Mo Struoturaa OoteoUd [ >50 1/C.O. or in 1st 4 G.O. Tremolite Actinolite Non-ldentified L\3*T*\PK1VXTE'. MmG\CAODV£IU B/zz/9a

CITY_21MC100_003274238

NYC-WTC_000202644