All current amendments available at time of purchase are included with the purchase of this document.
More BS standard pdf
BS 4999-72:1972
Specification for general requirements for rotating electrical machines-Built-in thermal protection for electric motors rated at 660 volts a.c. and below
$125.00 $251.46
BS 499-1:1965
Welding terms and symbols. Welding, brazing and thermal cutting glossary
$125.00 $251.46