Code of practice for design and operation of ships´ derrick rigs.
NORMA vydána dne 30.9.1976
Označení normy: BS MA 48:1976
Datum vydání normy: 30.9.1976
Počet stran: 42
Přibližná hmotnost: 126 g (0.28 liber)
Země: Britská technická norma
Kategorie: Technické normy BS
Nomenclature; illustrations of form of rigs with typical head fitting of blocks; estimates of rope tensions; typical load diagrams; union purchase rig; estimating loading on various components; safe working loads of slewing guys for swinging derricks; single sheave block safe working loads; care and maintenance. Status: Confirmed