This document provides specifications for SP3X heat shrink tubing. SP3X is a flame-retarded, flexible, heat shrinkable polyolefin tubing with a 3:1 shrink ratio. The document lists property test methods and values for metrics like tensile strength, elongation, heat shock resistance, corrosion resistance, and more. It also provides ordering information with available sizes from 1.5/0.5mm to 39/13mm, standard colors and packaging, and notes the operating temperature range of -55°C to 135°C.