User:Damuprudivi/ISO/IEC 17025:2005 -- General requirements for the competence of testing and calibration

Which level can get ISO/IEC 17025 Accrediation, like production equipments, contain several instruments, the which instruments can be calibrated in house by using master instruments, which category we can say and can we get the accrediation for specific organization also or only third party can get accrediation, please specify