Resumen (inglés):
Applicable to newly manufactured induction type var-hour meters for the measurement of reactive energy of frequency between 40 Hz and 60 Hz, of an accuracy class of 3.0 for ordinary usage, and to their type tests.
Resumen (francés):
Applicable aux varheuremètres à induction neufs, d'usage courant, de classe de précision 3,0. de fréquences comprises entre 40 Hz et 60 Hz, et à leurs essais de type.
