标准级别是指依据《中华人民共和国标准化法》将标准划分为国家标准、行业标准、地方标准和企业标准等4个层次。各层次之间有一定的依从关系和内在联系，形成一个覆盖全国又层次分明的标准体系。
标准级别试 Standard Grade Examination
标准级别考试 Standard Grade
苏格兰标准级别试 Scottish Standard Grade Examination
标准的级别 structure of standards sytem
错误级别标准 Error Class Guide
成电路的超净级别标准 ICCCS
标准服务级别协议 Service Level Agreement ; SLA
高标准服务级别协议 Service Level Agreement
典型相关标准综合级别 standard comprehensive class
回风形式还需依净化室的标准级别来决定。
What kinds of air return should be used depend on standard of clean room.
现在奥运会帆船比赛按照参赛船只的重量和尺寸，将它们划分为多个标准级别。
Olympic racing is now conducted with boats categorised into one-design classes based on similar weights and measurements.
现在奥运会帆船比赛按照参赛船只的重量和尺寸，将它们划分为多个标准级别。
Olympic racing is now conducted with boats categorised into one-design cla es based on similar weights and measurements.
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