This standard specifies dimensions, material and testing of spreaders for handling series 1 G and 1 CC ( 20 ft ) ISO Freight Containers with a 45° sling height.
1.2 This spreader may also be used for a 60° sling height.
IS 9881-1981 history
1981IS 9881-1981 C Series and 1 CC ISO Freight Container Spreader Specifications