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