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, HWDP and the ends of components that make up with them. This part of ISO 10407 has been prepared to address the practices and technology commonly used in inspection.The practices established within this document are intended as an inspection and/or testing guide and nothing in this part of ISO 10407 should be interpreted to prohibit the agency or owner from using personal judgement, supplementing the inspection with