MALLINCKRODT CHEMICALS

BuffAR" solutions. FROM. MALLINCKRODT . . . ACCURACY. Now you can establish the accuracy of your pH meter or other potentiometric apparatuswith three...
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NEW

BUFFAR™ SOLUTIONS FROM MALLINCKRODT. . .

pH ACCURACY

Now you can establish the accuracy of your pH meter or other potentiometric apparatus with three new products . . . B U F F A R solutions made by Mallinckrodt. Standardized against National Bureau of Standards reference samples, B U F F A R solutions are accurate within ±0.01 pH units (at 25° C) of the values appearing on the labels. A handy conversion table right on the label allows you to interpolate for other temperatures. B U F F A R pH 7.00 is also available as a concentrated solution—for additional economy. A companion product—Potassium Chloride Saturated Solution AR®—is available for replenishment of calomel reference electrodes.

MALLINCKRODT CHEMICALS Mallinckrodt

Mallinckrodt Chemical Works, St. Louis, Missouri

These new products are another step forward in Mallinckrodt's continuing efforts to develop new and better tools for the analytical chemist. For the latest innovations and a complete line of nearly 600 AR and laboratory chemicals, contact your.nearby Mallinckrodt distributor. Circle No. 132 on Readers' Service Card 82 A

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ANALYTICAL CHEMISTRY