Overview
SIST EN ISO 294-2:2019 specifies the requirements for a four-cavity injection mould - type С ISO mould - used to produce small tensile bars from thermoplastic materials. This standard forms Part 2 of the ISO 294 series, focusing on the preparation of standardized test specimens (type CW11, as referenced in ISO 20753) for evaluating the properties of thermoplastics. The test specimens created are crucial for assessing indicative performance characteristics, particularly in response to environmental factors.
By providing clear specifications for the mould and the injection moulding process, this international standard enables laboratories and manufacturers to obtain consistent and comparable mechanical test data for thermoplastics.
Keywords: injection moulding, small tensile bars, thermoplastic materials, test specimens, ISO 294-2, plastics, type CW11, material testing.
Key Topics
Applications
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Mechanical Testing and Material Evaluation
- Used in quality control and research laboratories to produce uniform tensile bars
- Enables standardized testing for tensile strength, environmental resistance, and processing effects in thermoplastics
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Benchmarking Environmental Effects
- Specimens are specifically suited for studies on the impact of chemicals, heat, and weathering, as referenced in ISO 11403-3
- Facilitates environmental simulation tests to predict real-world performance of plastic components
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Industry Sectors Benefiting from the Standard
- Plastics manufacturers and compounders seeking to validate material performance
- Academic and commercial laboratories performing product development and comparative studies
- Certification bodies and testing organizations needing harmonized sample preparation
Related Standards
- ISO 294-1:2017 - Plastics - Injection moulding of test specimens of thermoplastic materials - Part 1: General principles, and moulding of multipurpose and bar test specimens
- ISO 20753 - Plastics - Test specimens: specifies types and dimensions, including type CW11 referenced in this standard
- ISO 11403-3 - Acquisition and presentation of comparable multipoint data - Part 3: Environmental influences on properties
SIST EN ISO 294-2:2019 supports consistency and reliability in the testing of thermoplastic materials, forming a foundation for international comparability and improved quality assurance in plastics engineering and development. By following its detailed guidelines, organizations can achieve high-quality, reproducible test specimens, enabling better material selection and product performance prediction.