Singapore legislation
Regulation 62
Regulation 62
Tests for rivets
Subregulation 1
A few rivets of each size shall be selected by a surveyor of ships from the bulk, and shall be subjected to the following tests:
the rivet shanks shall be bent cold and hammered until the two parts of the shank touch, without fracture on the outside of the bend; and
the rivet heads shall be flattened, while hot, until their diameter is two and a half times the diameter of the shank, without cracking at the edges.
Subregulation 2
A few check tensile, tests of shell rivets shall also be made as required by a surveyor of ships. The elongation shall, when practicable, be taken in a length of 2½ times the diameter of the prepared part; the tensile strength shall be from 27 to 32 tons per square inch and the contraction of area about 60%.