TEM analysis lab report for sample 5651, Oct 10 2001

NYC 9/11 Public Portal Document

ATC ASSOCIATES INC. TEM ANALYSIS L.AB GROUP #: 56^1 - 10 '10/01 Ldl> Sdinple Ng. y_0i_A Filtei- Tvpe MCE mm At A Clx=ni 5pl No. NSHS- 0-04 Filter Area 3 5-5 mrr D Inssrunienu I.D. 13^12 CKz Grid I.D, Disk No. Screen Magnificatior. (GO) Area 0.01124 mm Comments Acc. Voltage 8 0 k.\ No. GO to be Analyzed _4_ 3.147 Struct. Govspd 0

GO. Structure Length I.D. of Structure EDS >0.5 um (Nonasb. No Coord. No. iF B C M > 5utn Chrys. Amphibole Nonasb. Ambig./ND Elements) < 5 uxn / .sf-----

Phob: No. (from I in 5 asbestaB- Identify all atructurea uainc EDS Check diffraction for asbestos Store all unrepealed spectra — containing samples) Grid acceptance:! atructurea up to 70a/^m flat 4) <S0X undiaaolvea filter, overlapped or folded SlrucL = > O.Sum k > 5:1 Aspect Ratio <10X particulate coverage >50% coverage Totals. Ns Not Observed (EDS spectrum er diffraction pattern) at leaat 20 unfolded or overlapped grid aquarea <5X holes or opaque areai_______________________ F B C M Sum Positive diffraction pattern properties conforming Ui laboratory IdanUncatlon criteria obaarved. -Unused porlion Far chrysoUle: O.TSnm spacing for (020) reflecUont. Of niter Chrysotile 0.53nm spacing for Lhe layer line repeat, streaking -Avoided portion of (110) and (130) refleeUans. er niUr Far •mphibeiee: D.SSnm layer line repeat, and approx. Portion of filler (Zmm wide) 3 5 ratio a( non-tvlnacd layer line spot spacing to aubjecL to esantinaUon Amphibole layer line repeat dietance {Q.93nm). EOS spectrum conforming to laboratory Ambiguous identiflcBtion criteria observed. AMPHIBOLES P= Single Fiber (1-3 IntereccUoni s 1“3 fibers) Amosite B= Bundle (>3 flben <1 fiber diameter apart) C= Custar (>3 Inlenectlone) 2Smni nilar Crocidolite Non-asbestos ------ Isuppini Rum I--------- 1 Anthophyllite Ms Matrix NSDs No Structurea Detected L’\QATA\PRIVATE\MlKEC\CADD'5‘EMa >M 9/22/98 [ b/C.O. er In Isl 4 G.O. Tremolite Actinolite Non-ldentified

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