New Spanish translation available

The Spanish translation of the A. I. E. E. Standard for Electrical Measuring Instruments (No. 33) is now available. This standard applies to the following kind of indicating instruments: Ammeters, voltmeters, wattmeters, reactive volt-ampere meters, frequency meters, power-factor, reactive-factor and phase-angle meters and synchroscopes. It does not apply to curve drawing or contact making instruments nor to small instruments of types and sizes which are used where low cost is essential.