指示剂法 meaning in English

index method
indicator method

The separation effect was tested by methylene blue acidic indicator and ir spectroscopy
用指示剂法及红外光谱法对分离情况进行检测。
Test methods for total , primary , secondary and tertiary amine values of fatty amines by alternative indicator method
交替指示剂法测定脂肪胺中总胺值,伯胺值,仲胺值和叔胺值的试验方法
Energetic materials for defense . physical - chemical analysis and properties . acidity or alcalinity of high explosives . method by dissolution and indicator
国防用高能材料.物理-化学分析及特性.高爆炸药酸碱度测量.溶解和指示剂法