The objectives of the project will be to: • Produce a review report summarising current gas pipe and jointing QA and NDT methods and defining the application of spectroscopic methods to gas pipe measurement giving enough information to enable the confident specification and selection of the portable hand-held spectrometers that meet the application requirements for the project • Building a base spectroscopy library of PE pipe based on a wide variety of samples of different ages, manufacturers and mechanical conditions • Building on the above, to build up a spectroscopic library of different weld conditions and faults, including inclusions, air bubbles, welds with poor weld strength or alignment for different grades and manufacturers of pipe • Software development and fusion joint metric analysis to enable the above library to be used enable the most effective condition assessment protocols to be produced • Demonstration of the transferability of the method onto a variety of different manufacturers hardware platforms