NYC-WTC_000182517

NYC 9/11 Public Portal Document

ATC ASSOCIATES INC. TEM ANALYSIS Lab Sample No. 60033 Client Spl. No. SHS>l>lQ-I0/S-26 LAB GROUP H: 5609 - IQ/QS/OI Filter Type MCE ^2 5 men Filter Area 335 mm'^2 Operator R.P Instrument I.D. EM 10 CRX Grid I.D. , 5-/ Disk No. Screen Magnification Ig,400X (GO) Area 0.Q1I24 mm^2 Comments 'Acc. Voltage 80 kV No. GO to be Analyzed __4 { 3.147 Suruct. Corspd. co 70 g/T.in^2.!

GO. Structure Structure Type Length I.D. of Structure EDS N or >0.5 um (Nonasb. No Coord. No. F B C M Sum Chrys. Amphibole Nonasb. Ambig./ND Elements) < 5 um I- 1/ 7.,___ II (i

Photo No. (from 1 In 3 aa lestoa- Identify all atructurea using EDS Check diffraction for asbealoa Store all unrepeated apectra— containing aamplea) Grid acceptance:! atructurea up to TOa/i^ni (l»t 4) <90% undlaaoiveJ filter, overlapped or folded StrucL = > O.Sum & > 3:1 Aapect Ratio <10% particulate coverage >80% coverage Totals Ns Not Obaerved (EDS apectrum or dlffracUon pattern) at leaat 20 unfolded or overlapped grid squares PoaiUve diffraction pattern properties conforming <5% holes or opaque areaa F B C M > Sum to laboratory identification criteria observed. -UnUMd portion For chrysoUla: 0.73nm «pacinc for (020) reflacUons. of filUr Chrysotile O.aanm Bpacing for Uia Uyor lln® repast, streaking ‘Avoided portion of (110) and (130) refleeUona. of filtar For amphiboles: O.S3nm layer Une repeat, and apprea, / PorUon of filter ) (Smtn wide) 3.3 raUo of non-tvlnned layer Une spot spacing to I BUbJeet Id BRaminaUon i Amphibole layer Une repeat dlatance (Q.33nin). EOS spectrum conforming to laboratory Ambiguous Identification criteria observed. AMPHIBOLES F= single Fiber (1-3 inLersections = 1-3 flben) Amosite B= Bundle (>3 fibers <1 fiber diameter apart) Sfimm niter Crocidolite Non-asbestos C= Cluster (>3 IntersecUons) b...... L M= Matrix I--------- 1 SUpping BuIbb: I--------- - Anthophyllite NSD= No Structures DetecUd | >^0 »/C.O. or tn lat 4 C.O. | Tremolite Actinolite Non-Identified L\DATA\PRIVATE\MIKEC\CADD'TEU3 9/22/Oa

CITY_21MC100_003099097

NYC-WTC_000182517