BS MA 47:1977

This standard BS MA 47:1977 Code of practice for ships' cargo blocks is classified in these ICS categories:

• 47.020.40 Lifting and cargo handling equipment

This standard covers ships’ steel cargo blocks for use with wire rope and forming part of the cargo derrick rig, embracing the body, sheave(s), axle pin, head fittings and becket.

Materials, workmanship, design particulars (screw threads, bearings, sheave diameters for given rope sizes, sheave grooves), permissible stresses, proof loading, inspection, marking and certificate of test and examination are specified.

Steel blocks for use with wire rope in ships' cargo derrick rigs. Design, construction and materials, safe working load, proof load, inspection, tests and certification. Recommendations for care and maintenance.