TEM analysis lab report for sample 5652, Oct 10 2001

NYC 9/11 Public Portal Document

ATC ASSOCIATES INC. TEM ANALYSIS LAE GROUP fl: 56b2 ! ' i0, 01 Lab Sample No xet Type MCE mm oil an- opl No. HSHE- SXP.-IO lU 06 335 rilin'2

Insirument I.D. EM It' Grid T.D — Disk No. Scrsen Magnificat ion KL^COX (GO) Area 0 - 01124 mm"2 Comment s Acc. Volcage 8 0 k\ NO. GC ro be Analyzed _4 Struct s mm

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

3 ./ z A

Store all unrepeated spectra-^ Photo No. (from I in 5 a^beatos— Identify all atructurea uaini EDSI Check diffraction for aslibeatoa conUininc samples) Grid acceptance:! structures up to 70s/mim (l«l 4) <S0X undisBolvea filter, overlapped or /olded Struct. = > Q.Sum i > 5:1 Aspect Ratio <IOX particulate coverace >S0X coverage Totals Ns N9t Observed (EDS spectrum or diffraction pattern) at least 20 unfolded or overlapped grid squares <5% holes or opaque areas F B C M > Sum Pnaltlve diffraction pattern properties conforming to laboratory Identification criteria observad. •Unuwd portion Fer ehrysotils: O.Tanm spacing for (020) ranacUoas, Of nilar Chrysotile 0. Wnm spacing for the layer line repeat, streaking 'Avoided portion of (110) BOd (130) reneeboaa. of niter For amphiboles: D.sanm layer line repeat, and approx. Portion of filter (2mm wide) 3.11 ratio of non-twlnned layer Une spot spacing to •ubject to examlnatlen Amphibole la;-er line repeat distance (0.53nm). z"’ ECS apactrum conforming to laboratory IdnnUflcaUon criteria observed. I AMPHIBOLES Ambiguous P= Single Fiber (1-3 inUraecUons = 1**3 fibers) Amosite B= Bundle (>3 fibers <1 fiber diameter apart) C= Cluster (>0 intersections) M= Miitriz ZSmm fllUr /supping Rule.: I--------- Crocidolite Anthophyllite Non-asbestos I NSDs No Struclurea Detected k\DAT4\PHVATe\llIKSC\CADDVEKS o/22/oa >90 a/C.O. or In lai 4 C.O. Tremolite Actinolite Non-Identified ! i CONFIDENTIAL, CITY_21MC1OO_OO3469913

SUBJECT TO PROTECTIVE ORDER NO. 2, SEPT. 2008

NYC-WTC_000176411