Part 1 Tablet Overview   Tablets refer to medicinal material extracts, medicinal material extracts plus medicinal material fine powders into medicinal material fine powders and suitable excipients mixed and pressed in the form of discs or special-shaped tablets, including extract tablets, semi-extract tablets and whole powders piece. Tablets are solid drug-containing preparations made by compression […]

Cleanroom Related Concepts   The clean area is a limited space where the concentration of suspended particles in the air is controlled. The construction and use should reduce the introduction, generation and retention of particles in the space, and other relevant parameters in the space, such as temperature, humidity, pressure, etc., should be controlled.  

Part 1 Operation Principle Of Programmable Control Technology   According to the number of I/O points of programmable logic controller (PLC), it can be divided into three types: small computer, medium computer and mainframe. Although there are many types of PLC, their structure and principle are basically the same. Internally store user-oriented operation commands such