Comparison Analysis on New and Old National Standards of Breaking Force Test for Entire Steel Wire Ropes

From the aspects of term and definition, sample, testing rate, testing result determination, the main technical modification in new and old national standards of breaking force test for entire steel wire ropes was analyzed. Compared with the old standard, some terms and definitions were added and removed in the new standard; the preparation methods of common samples had been specified; the testing rate after the force was more than 80% of the minimum breaking force was changed; the determination rules to judge whether the test results were effective were adjusted. With the help of the comparative analysis on new and old standards, quality inspection departments and related departments could understand and apply the new standard better, and the validity of testing results could be enhanced.