EN ISO 16635-1:2014 - Overview
EN ISO 16635-1:2014 (ISO 16635-1:2013) specifies requirements and test methods for hole punches used with dental rubber dams. It defines dimensional, material and performance criteria to ensure accurate, safe and durable punching of holes in rubber dam sheets for tooth isolation. The standard is intended for manufacturers, testing laboratories, regulatory bodies and procurement professionals involved with dental instruments and dental rubber dam technique.
Key topics and technical requirements
- Purpose: Exact punching of holes of different diameters in dental rubber dam materials.
- Dimensions
- Total length: (165 ± 5) mm.
- Handle separation (open passive state): ≤ 95 mm to ensure comfortable handling.
- Insertion depth: 20 mm to 70 mm to allow positioning on flat sheets or frames.
- Die plate and hole sizes
- Die plate options: 6-hole (0.8–2.3 mm) or 8-hole (0.5–2.6 mm) configurations with approximately equal increments.
- Tolerances on hole diameters: ± 0.1 mm.
- Mechanisms
- Automatic opening (e.g., spring) required so the punch opens in passive state.
- Die plate engagement mechanism to index the die plate in defined positions so the punch contacts hole centres reliably.
- Passive-state clearance: at least 2.5 mm between punch tip and die plate face.
- Materials and hardness
- Body made of corrosion-resistant martensitic stainless steels (X20Cr13 / X46Cr13) per ISO 15510.
- Die plate hardness: 48–55 HRC or 600–720 HV1 (testable per ISO 6508-1 or ISO 6507-1).
- Surface and finish
- Working ends and shafts must be polished and surfaces free from pores, cracks, scale, acidic residues and polishing agents.
- Test methods and marking
- Visual examination (no magnification) and dimensional checks with measuring devices (max permissible error ≤ 0.1 mm; applied force ≤ 1.5 N).
- Required marking: manufacturer/brand, model number, lot number.
Applications and users
- Manufacturers of dental instruments for design compliance, production quality and certification.
- Dental device test laboratories performing conformity and hardness testing.
- Regulatory and procurement teams specifying equipment for dental clinics and hospitals.
- Dental clinicians and clinic managers who select reliable hole punches for rubber dam isolation in restorative and endodontic procedures.
Related standards
Keywords: dental rubber dam, hole punch, EN ISO 16635-1:2014, ISO 16635-1:2013, die plate, hardness, stainless steel, dental instrument standard.