1 # Rio Cru prie VciiV-y Citrus Pinery Progreso, Texas SEP 281973 y/-.-;- %' )f fr-tr ..* <-.

ANALYST WORK SHEET ......... 3.

CAM-86 COL 00477 .

CAM-121

CAM-400 ITA-Abeyta-000520 ITA-Abeyta-000521 ITA-Abeyta-000522 ITA-Abeyta-000523 ITA-Abeyta-000524 ITA-Abeyta-000525 ITA-Abeyta-000526 ITA-Abeyta-000527 ITA-Abeyta-000528 ITA-Abeyta-000529 ITA-Abeyta-000530 ITA-Abeyta-000531 ITA-Abeyta-000532 ITA-Abeyta-000533 ITA-Abeyta-000534 ITA-Abeyta-000535 ITA-Abeyta-000536 ITA-Abeyta-000537 ITA-Abeyta-000538 ITA-Abeyta-000539 ITA-Abeyta-000540 ITA-Abeyta-000541 ITA-Abeyta-000542 ITA-Abeyta-000543 ITA-Abeyta-000544 ITA-Abeyta-000545 ITA-Abeyta-000546 ITA-Abeyta-000547 ITA-Abeyta-000548 ITA-Abeyta-000549 ITA-Abeyta-000550 ITA-Abeyta-000551 ITA-Abeyta-000552 ITA-Abeyta-000553

mm m um m 560 E H eise, W Lbbe und 0 N eunhoeeeeb Stoffwuchiel d s t T um om .ll- Adrenoohrom h .t auf dB Wachstum von TnuKpl.ntationBtumorcii keinen Einflu Ee ist wahrscheinlich, da m it Hilfe von Dehvdro. ascorbinsure Adrenalin zu Adrenochrom oxjdiert werden kann.

cc: ^BF-400 Br.

RIO TINTO M IN ER A LS MATERIAL DATA SAFETY SHEET TALC PLAINTIFFS EXHIBIT CAM-318 Product and Company Identification Product Names Grade 25 USP Imperial 250 USP Imperial 500 USP Imperial 1890USP/BC Suprafino HP USP Supreme H USP Imperial 180 USP Imperial 400 USP Imperial 1885L USP/BC Imperial 1892L USP/BP/EP/BC Supra H USP s Imperial 200 USP Imperial 400Y USP Imperial 1889L USP/BP/EP/BC Olympic H USP Olympic HY USP Synonyms Talcum powder, Soapstone, Steatite Chem ical N am e Talc ; Hyc rous magnesium silicate CAS# 14807-96-6 C hem ical Fam ily Phyllosilicates M anufacturer Luzcnac America, Inc.

Rio Tinto Minerals 8051 E.

** PLAINTIFFS KHIBfT NO.

,/P c OjO <L- c=?

Having defined the 'ca tio n el filtration anu decided on th e ^^ filter type requires to fulfill that function the next step is to: Design the m osteconomicalsystem w hich w ill fulfill the function The most economical filtration system usually combines depth filters and screen fil ters.

27 1 able-4 M t jr 2 0 u ars af u r first c m p io \ ttu m , b \ t aitse, in re la tio n to J u ra tio n o f s e n u ?

V -/ Detection of Quartz in Talc by X-ray Diffraction Principle X-ray diffraction is a convenient method for determining the presence of crystalline impurities, such as quartz, in talc.

CAM-26