BS 89:1929

Indicating ammeters, voltmeters wattmeters, frequency and power-factor meters.

NORMA vydána dne 8.4.1929

The information about the standard:

Designation standards: BS 89:1929
Note: NEPLATNÁ
Publication date standards: 8.4.1929
Approximate weight : 300 g (0.66 lbs)
Country: British technical standard
Kategorie: Technické normy BS