This standard BS 6166-1:1986 Lifting slings is classified in these ICS categories:
53.020.30 Accessories for lifting equipment
Methods for the rating of lifting slings having either equal or unequal leg lengths. Includes terminology, units and general matters relating to rating of lifting slings. Covers lifting slings for multi-purposes based on the uniform load method and those for a single purpose based on either the uniform load or trigonometrical method.