- Total waste is all the PVC waste generated from all sectors at end-of-use and which also include post-industrial waste.
- Available waste is PVC waste that is theoretically available to waste streams. It does not include 'not available' waste such as pipe abandoned in situ.
- Collectable waste is PVC waste that can be reclaimed, graded and transported for recycling. It does not include some elements of available waste that are not economically or technically feasible to collect or recycle. This is a variable proportion that depends on the specific recycling system used.