UNION CARBIDE CORPORATION


package contains a statement guaranteeing 6 ppm maxi- mum impurities—99.9994 percent ... UNION. CARBIDE. Circle No. 224 on Readers' Service Card. 50...
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IMPROVED AGKSP

m

in structural quality! In total reliability!

NATIONAL

AGKSP Spectroscopic Electrodes

Improved uniformity—Even Advanced techniques in production control of struc­ ture enable us to offer a greatly improved grade of AGKSP spectroscopic electrodes. The unretouched photomicrographs above reveal the improved uniformity of pore and particle size. Hard spots are eliminated. The structure of these unsur­ passed electrodes is maintained throughout the rod— and from rod to rod and batch to batch. For all the qualities you must have for reliable repro­ ducibility—every time—order AGKSP (also SPK) elec­

more dependable

trodes in their new 6-in. length. Remember, every package contains a statement guaranteeing 6 ppm maxi­ mum impurities—99.9994 percent PURE! Ordertoday!

"National" and " N " and Shield Device are registered trade-marks of

UNION CARBIDE

Circle No. 224 on Readers' Service Card 50 A

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ANALYTICAL CHEMISTRY

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UNION CARBIDE CORPORATION CARBON PRODUCTS DIVISION 27 0 Park Avenue, New York. Ν. Y. 10C17 In Canada: Union Carbide Canada Limited, Toronto