The International Committee of the Red Cross (ICRC) has made their polypropylene manufacturing guidelines available online. These Manufacturing Guidelines are designed to provide the information necessary for the production of high-quality assistive devices. The informative manuals are designed to promote and enhance standardization of ICRC polypropylene technology, to provide support for training in the use of this technology and to promote good practice in this field
The International Society for Prosthetics and Orthotics Canada 