prBAS ISO 7448:2025

This document identifies and defines terms used, illustrates configurations, and gives a nomenclature of components for machine-fed woody biomass reduction chippers, grinders, and shredders used in forestry. It aims to establish a uniform description of the various configurations of these types of forestry machines. Machines covered by this document include: —     drum chippers; —     disc chippers; —     screw chippers; —     horizontal grinders; —     tub grinders; —     shredders. Chippers, grinders, and shredders that are manually fed are not covered by this document.