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Precautions for use of rotary viscometer
Rotational viscometer is widely used to measure the dynamic viscosity of various fluids such as grease, paint, coating, plastic, food, medicine, adhesive and so on. The instrument is simple in structure, cheap in price, convenient and practical, so it is very popular. In the long-term verification process of this type of instrument, we found that many users, especially the testers of small and medium-sized enterprises, have many problems in the use process. Often, the performance of our verified instruments is better than the requirements of the national metrology verification regulations, but users are testing samples The data is very biased. Now how to use this kind of instrument correctly to obtain accurate and reliable measurement results is analyzed as follows.