BS 7189:1989被替代
Specification for sound calibrators
出版：British Standards Institution
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基本信息
标准编号： BS 7189:1989
发布时间：1989/9/29 0:00:00
标准类别：Standard
出版单位：British Standards Institution
标准页数：16
标准简介
Performance requirements for class 0, class 1 and class 2 calibrators under specified conditions; the techniques of calibration for the calibrator and any associated device or system are excluded.
标准备注
© British Standards Institution 2013
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