This document specifies requirements and test methods for the physical properties of manual toothbrushes in order to promote the safety of these products for their intended use. This document does not specify any requirements and test methods for the physical properties of toothbrushes for which all the cleaning elements in the head are elastomer. This document does not apply to manual single tuft toothbrushes, single use, interdental, powered oral hygiene devices, and non-flat trim profile tufts (e.g. dual textured, bi-level, multi-level, rippled, or angled in opposing directions). These types of oral hygiene products should be evaluated for their safety in-use by appropriate test methods or clinical trials. In addition, this document does not apply to particular designs of filament ends (e.g. tapered, feathered, with split tips, or spherical cap) or filament types (e.g. non-synthetic filaments, very thin, spiral or twisted) for the filaments end-rounding requirements. These types of manual toothbrushes should be evaluated for their safety in-use by appropriate test methods or clinical trials appropriately.