BS-4521-3.2 | Specification for railway turnouts for private users. Medium grade turnouts over which British Railways locomotives do not operate, for axle loads not exceeding 25 tons. Turnouts using flat bottom rails | Document Center, Inc.

BS-4521-3.2 › Complete Document History
Specification for railway turnouts for private users. Medium grade turnouts over which British Railways locomotives do not operate, for axle loads not exceeding 25 tons. Turnouts using flat bottom rails

Obsolete Revision Information:

1975 EDITION - REAFFIRMED IN 2010 - April 30, 1975