The requirements for critical measurements in water classified as type III according to ASTM (American Society of Testing and Materials) are such that it can be produced from network water using deionization and/or distillation methods.

The specific requirement of the user, the desired arrangement they wish to create to produce type III water, as well as the quality of the feed water will determine the specific design of how they will achieve the desired result.

This arrangement usually includes some combination of pre-filters, deionization columns, and distillation devices. The sizes can vary according to the needs of the application, just as the critical measurements can vary accordingly.