DIN EN ISO 22254 PDF Download

The DIN EN ISO 22254 standard focuses on evaluating the manual toothbrushes' tufted portion's resistance to deflection. It offers a mechanism for calculating the amount of force necessary to bend or deflect the toothbrush's bristles. The flat trim design, which is typical for manual toothbrushes, is covered expressly by the standard.

It is important to keep in mind that alternative toothbrush designs, like those with angled or curved bristles, might not be covered by this standard. Furthermore, the outcomes of this criterion may not always match how customers perceive the hardness of toothbrush bristles. To put it another way, while the standard might give a numerical representation of deflection resistance, it might not correctly reflect how consumers feel about how stiff toothbrush bristles are.