VtMOOtC TABLE OF THE ELEMENTS EMOteENCV P R O C E D U R E S
FOR
DANGEROUS MATERIALS
SARGENT-WELCH INSTRUMENTATION .. when quality really matters NEW XKR RECORDERS • pH Meters & Electrodes • Spectrophotometers • Thermostatic Baths
•POLAROGRAPHS" • Automatic Titrators • Oscillometers • Vacuum Pumps
:>r Aven*
Skokie, Mlinoi
For more information about these instruments, circle: No. 211 for pH Meters, & Electrodes, No. 212 for Recorders, No 2 l % i o \ f ^ ^ ° ^ e ^ · No. 214 for Thermostatic Baths, No. 215 for POLAROGRAPHS, No. 216 for Automata Titrators, No. 217 for Oscillometer, No. 218 for \ acuum Pumps