This part of IEC 60684 gives the requirements for heat-shrinkable, polyolefin sleeving, antitrackingwith a nominal shrink ratio of 3:1.This sleeving has been found suitable for use at temperatures up to 100 °C.Typically: medium wall, internal diameter up to 110 mm.These sleevings are normally supplied in the colours red or brown.Since these types of sleevings cover a significantly large range of sizes and wall thicknesses,Table A.1 in this standard provides guidance on the range of sizes available. The actual sizeshall be agreed between the user and the supplier.Materials which conform to this specification meet established levels of performance.However, th