This is the process of reducing solids into fine particles by rubbing them with a mortar and pestle. It is used to reduce the size of the particles and to blend powders.

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To become a Nationally Certified Pharmacy Technician in the United States, you need to demonstrate an ability of the material necessary to pass the (PTCB)  Pharmacy Technician Certification Exam.


1. This is the process of reducing solids into fine particles by rubbing them with a mortar and pestle. It is used to reduce the size of the particles and to blend powders.