Dentistry. Physical properties of powered toothbrushes Ingestion-build-137917 Introduction of description and test

Introduction of description and test methods for lead-free soldering

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Dentistry. Physical properties of powered toothbrushes Ingestion-build-137917 Introduction of description and testWhat is ISO 20127 about? International standard ISO 20127 discusses the physical properties of powered toothbrushes. ISO 20127 specifies requirements and test methods for the physical properties of powered toothbrushes to promote the safety of these products for their intended use. Powered toothbrushes can have a moving brush head with different motions (e. g., oscillating rotating, side by side), frequencies and velocities. Note 1: There are