The International Organization for Standardization (ISO). This ISO document is a working draft. ISO/TC 67/SC 4 N. Date: 2004-10-4. 165p. This part of ISO 10407 specifies procedures for the inspection and testing of used drill stem components. For the purpose of this document, drill stem components include drill pipe body, tool joints, rotary shouldered connections, drill collar, heavy weight drill pipe and the ends of components that make up with them.