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News lab-info no. 2 . . . now you can titrate water by kf without the "pleasant" smell of pyridine... eugen scholz found other amines more suitable... they are published in fresenius z. anal. chem. in 1980 ... HYDRAMAL® was introduced in 1 9 8 1 . . . you can get it all over the world ... you should ask for a sample and the HYDRAMAL®-brochure... in english, french, Spanish or german ...

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Aktiengesellschaft Wunstorfer StraBe, D-3016 Seelze 1/Hannover/ West Germany Telephone ( 5 1 3 7 ) 7 0 7 - 1 , Telefax (5137) 9 1 9 7 9 Telex 9 2 1 2 9 5 rdhs d United States and Canadian distributor: Crescent Chemical Co., Inc. 1324 Motor Parkway, Hauppauge, New York 11788 Telephone (516) 3 4 8 - 0 3 3 3 , Telex 1 4 3 1 6 9

CIRCLE 180 ON READER SERVICE CARD

Radiation Standards TRACER SOLUTIONS CALIBRATED AND UNCALIBRATED INCLUDING

ENVIRONMENTAL AND COUNTING ROOM STANDARDS • P l a n c h e t a n d simulated filter paper standards. 85

m

• Kr Xe g a s standards.

Xe

127

Pb 2 1 0

Am24' Ac 2 2 7 C 14

Sr'° Ra

Po 2 0 8

152

• Large v o l u m e and Marinelli type b e a k e r s .

Eu

• S i m u l a t e d cartridge standards.

Sr 8 5

Standards Program conforms to USNRC Reg. Guide 4.15

226

Th 2 3 0 Gd 1 4 8 U233 Ni 6 3

Pm 1 4 7

ISOTOPE PRODUCTS LABORATORIES 1800 N. Keystone Street · Burbank, California 9 1 5 0 4

(213) 843-7000 CIRCLE 103 ON READER SERVICE CARD 1268 A · ANALYTICAL CHEMISTRY, VOL. 54, NO. 12, OCTOBER 1982

P.O. Box B, Frederick, Md. 21701, or Tibor Devenyi, Institute of Enzymolo¬ gy, Hungarian Academy of Sciences, Budapest, Hungary.

For Your Information A study to assess emerging opportunities for firms to become involved in the treatment or disposal of hazardous wastes has been proposed by Battelle's Columbus Laboratories. The year-long study is open for membership on a multiclient basis to a number of companies for $5500 each. For more information contact Gerald L. Robinson Battelle Columbus Laboratories, 505 King Ave., Columbus, Ohio 43201. The National Bureau of Standards and the Joint Committee for Powder Diffraction Standards-International Centre for Diffraction Data (JCPDS-ICDD) have begun a cooperative effort to collect and disseminate evaluated crystallographic diffraction data to the scientific and technical community. JCPDS-ICDD will distribute NBS crystallographic data bases in machine-readable form and as separate publications. Revenue from the data bases will be used to assist the NBS Crystal Data Center in collecting and evaluating data for use in building and maintaining the computer data bases. For more information contact the Office of Standard Reference Data, NBS, Physics Bldg. A320, Washington, D.C. 20234, or JCPDS-ICDD, 1601 Park Lane, Swarthmore, Pa. 19081. In response to a request from the International Laboratory Accreditation Conference (ILAC), the National Bureau of Standards (NBS) has prepared a bibliography to promote the exchange of worldwide information concerning laboratory accreditation and related subjects. "A Bibliography on Laboratory Accreditation" (NBSIR 82-2523) is a compilation of references from 16 nations. References are grouped by country and accreditation subject and are also listed chronologically. Copies are available at $12 each prepaid from the National Technical Information Service, Springfield, Va. 22161. Order by PB #82-237694. The Dow Chemical Company's BioScience Enterprises of Van Nuys, Calif., has recently been purchased by American Hospital Supply Corporation. Bio-Science develops and pro¬-