ISO 7787-3:2017 PDF

Name: ISO 7787-3:2017 — Dentistry — Laboratory cutters — Part 3: Carbide cutters for milling machines
SKU: ISO 7787-3:2017
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Dentistry — Laboratory cutters — Part 3: Carbide cutters for milling machines

Название (английский):

ISO 7787-3:2017

Dentistry — Laboratory cutters — Part 3: Carbide cutters for milling machines

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 6
Дата публикации:: 3 мая 2017 г.
Издание:: ISO IS 7787 edition 2 version 1
ICS:: 11.060.20

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Описание (английский):

ISO 7787-3:2017 specifies dimensional and other requirements for the three most commonly used carbide cutters for milling machines which are predominantly used in the dental laboratory. Other characteristics of laboratory cutters (for example, spiralled blades or cross-cut) are not covered by this document. Cutters intended for use with CAD/CAM systems are excluded from the scope of this document.

Abstract

Похожие стандарты

Стандарты, упомянутые в описании

Overview

ISO 7787-3:2017 specifies dimensional and performance requirements for the most commonly used carbide laboratory cutters for milling machines in the dental laboratory. The standard ensures interchangeability and consistent quality of tungsten carbide cutters used for milling dental prosthetic parts. It excludes cutters intended for CAD/CAM systems and does not cover additional cutter characteristics such as spiralled blades or cross-cut geometry.

Key topics and technical requirements

Scope and shapes: Defines three head shapes commonly used in dental milling: cylindrical (side cutting only), cylindrical hemispherical, and conical truncated (side cutting only). Nominal diameters include commonly used sizes (for example 1.0 mm, 1.5 mm, 2.3 mm and conical sizes up to about 4.0 mm as listed in the standard tables).

Materials: Shanks shall be made of steel or other suitable material; the working part shall be tungsten carbide. Material selection and treatment are left to the manufacturer’s discretion.

Shank type: Shanks must be Type 2 or Type 4 in accordance with ISO 1797.

Dimensional tolerances: All dimensions are specified in millimetres with tolerances for diameter and length per the tables and figures in the standard.

Run-out tolerance: Total indicated run-out, measured per ISO 8325, shall not exceed 0.08 mm.

Sampling and acceptance: Type testing is specified - take 10 instruments at random from a validation batch. Pass/fail rules: if 8 or fewer pass the product fails; if 9 pass, test 10 additional instruments and all 10 must pass for compliance.

Measurement methods: Dimensional and run-out measurements must follow ISO 8325 and use validated measuring devices; manufacturers are responsible for instrument accuracy validation.

Designation and marking: Designation code numbers follow ISO 2157. Marking must show the manufacturer’s trade name/mark and the nominal size.

Applications and users

Dental laboratory managers and technicians: Use the standard to select compatible carbide cutters for milling machines and ensure consistent fit and function.

Manufacturers and suppliers: Apply the dimensional, material and marking requirements for product design, production, quality control and labeling.

Quality and regulatory personnel: Use sampling, test methods and run-out criteria for type testing and conformity documentation.

Test laboratories and procurement teams: Reference the standard when validating instruments and specifying purchase requirements.

Related standards

ISO 1797 - Shanks for rotary and oscillating instruments

ISO 2157 - Nominal diameters and designation codes for rotary instruments

ISO 8325 - Test methods for rotary instruments (measurement and run-out)

ISO 1942 - Dentistry vocabulary

ISO 6360-3 - Number coding system for rotary instruments (bibliographic reference)

Keywords: ISO 7787-3:2017, carbide cutters, dental milling, laboratory cutters, tungsten carbide, run-out 0.08 mm, dental laboratory standards, ISO dental standards.

ISO 7787-3:2017 PDF

Abstract

Похожие стандарты

Overview

Key topics and technical requirements

Applications and users

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