ISO standards download ISO 23445:2021 pdf download – Dentistry — Tissue punches ISO 23445:2021 pdf download - Dentistry — Tissue punches. 6.4 Resistance to reprocessing There shall be no signs of deterioration in performance or corrosion when tested in accordance with 7.3. 6.5 Hardness The hardness of the tissue... 02-13 Download Now