Crude fiber measurement method

The composition of dietary fiber is complex, and domestic methods for measuring in this area have not yet formed a unified standard. They have always followed the old methods or used foreign methods of measurement, and have not formed their own methods for measu.......

Acid pump should be how to choose

First of all you see what kind of acid delivery, the following is a common selection of acid pump instructions:
1, Hydrochloric acid pump commonly used hydrochloric acid maximum concentration of 38%, so, hydrochloric acid pump is basically as long as the overcurrent component material .......