This standard applies to low-frequency signal generators and is the basis for assessing the quality level of low-frequency signal generators. However, it does not apply to low-frequency signal generators and function generators with low distortion, high power, and high stability. This standard must be used together with the standards cited in Chapter 2.
SJ/T 9514-1993 history
1993SJ/T 9514-1993 Grading standard of quality for low frequency signal generators