Sargent-Welch Scientific Company - Analytical ... - ACS Publications

Sargent-Welch Scientific Company. Anal. Chem. , 1968, 40 (10), pp 47A–47A. DOI: 10.1021/ac60266a738. Publication Date: August 1968. ACS Legacy Archi...
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Our non-standard approach to the building of the pH meter we call the "Laboratory Standard!' We start with a measuring circuit designed for an accuracy of ±0.03 pH, with a reproducibility of ±0.01 pH. And β we use solid-state circuitry for stability and reliability.

We use a large, easy-to-read meter, graduated from 0 to 14 pH in 0.1 increments

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We simplify meter operation by installing only three controls. One each for temperature compensation, standardization, and operation.

We make it easy to use all common electrodes, because our meter has an input impedance of 10,000 megohms.

Our Laboratory Standard Model LS pH Meter. $345. (With combination electrode and solutions.) 8-220

SARGENT-WELCH

Scientific instruments, apparatus, chemicals. Sargent-Welch Scientific Company 4647 Foster Ave.; Chicago, III. 60630

Chicago/Anaheim, Calif./Birmingham Cincinnati/Cleveland/Dallas/Denver Detroit/Springfield, N.J./Toronto, Canada

Circle No. 148 on Readers' Service Card -Circle No. 17 on Readers' Service Card

VOL. 40, NO. 10, AUGUST 1968

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47 A