ISO 20457:2026
ISO 20457:2026 Plastics moulded parts — Tolerances and acceptance conditions
CDN $343.00
This publication was last reviewed and confirmed in 2026.
Plastics moulded parts — Tolerances and acceptance conditions
Description
This document specifies geometrical and dimensional tolerances for plastic moulded parts including:
- limits of technical manufacturability according to the manufacturing effort for direct tolerances;
- general tolerances of plastic moulded parts;
- acceptance conditions of plastic moulded parts;
- modification of the drawing default according to ISO 8015, in accordance to the environmental conditions common in the plastics industry.
This document is applicable to non-porous moulded parts made from thermoplastics, thermoplastic elastomers and thermosets of thermoplastics, made by injection moulding, injection compression moulding, transfer moulding, compression moulding and rotational moulding. This document is applicable to other plastic processes, if agreed to by the contractual parties.
Moulded part surface imperfections such as sink marks, undesired flow structures and roughness, as well as joint lines are not addressed in this document.
Edition
2
Published Date
2026-09-16
Status
PUBLISHED
Pages
34
Language
English
Format
Secure PDF
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Abstract
This document specifies geometrical and dimensional tolerances for plastic moulded parts including:
- limits of technical manufacturability according to the manufacturing effort for direct tolerances;
- general tolerances of plastic moulded parts;
- acceptance conditions of plastic moulded parts;
- modification of the drawing default according to ISO 8015, in accordance to the environmental conditions common in the plastics industry.
This document is applicable to non-porous moulded parts made from thermoplastics, thermoplastic elastomers and thermosets of thermoplastics, made by injection moulding, injection compression moulding, transfer moulding, compression moulding and rotational moulding. This document is applicable to other plastic processes, if agreed to by the contractual parties.
Moulded part surface imperfections such as sink marks, undesired flow structures and roughness, as well as joint lines are not addressed in this document.
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