GB/T 27021.4-2018合格评定管理体系审核认证机构要求第4部分:大型活动可持续性管理体系审核和认证能力要求国家标准
英文:Conformity assessment—Requirements for bodies providing audit and certification of management systems—Part 4: Compete...
英文:Conformity assessment—Requirements for bodies providing audit and certification of management systems—Part 4: Compete...