A:①physical and chemical performance index detection method
②filter paper speckle analysis
③Detergency analysis
④dielectric constant analysis
⑤ spectral analysis
⑥ magnetic detector analysis, etc.
A:①physical and chemical performance index detection method
②filter paper speckle analysis
③Detergency analysis
④dielectric constant analysis
⑤ spectral analysis
⑥ magnetic detector analysis, etc.