ISO 30012:2016/Amd 1:2018

Overview

ISO 30012:2016/Amd 1:2018 is an essential amendment to the international standard for carbon-fibre-reinforced plastics (CFRP). This amendment focuses on the precise determination of the size and aspect ratio of crushed CFRP objects. Developed by ISO Technical Committee ISO/TC 61, Subcommittee SC 13 (Composites and Reinforcement Fibres), this standard helps ensure consistent measurement protocols for crushed CFRP materials, supporting researchers and industry professionals in quality control and material characterization.

By standardizing measurement methods, ISO 30012:2016/Amd 1:2018 enhances the repeatability and reproducibility of tests on crushed CFRP fragments, which are critical parameters for evaluating composite material performance and processing outcomes.

Key Topics

• Measurement Precision: The amendment introduces updated precision data based on rigorous testing using Method B. It quantifies repeatability and reproducibility across different CFRP materials and laboratories.

• Size Measurement Parameters:

  • Length (L) and Width (W) of crushed fragments, expressed in millimeters.
  • Aspect Ratio (R), a dimensionless value representing the ratio between length and width, crucial for understanding fragment shape.

• Testing Methods:

  • Methods A, B, and C are compared for accuracy and consistency.
  • Results show strong agreement with low coefficients of variation (CV), emphasizing method reliability.

• Interlaboratory Reproducibility:

  • Data from four laboratories demonstrate robust reproducibility across different test environments.
  • Standardized testing supports consistent quality control in composite fabrication and recycling.

• Material Types Covered:

  • Unidirectional (UD) type CFRP.
  • Fabric type CFRP.
  • Mixed CFRP materials.

Applications

ISO 30012:2016/Amd 1:2018 is widely applicable in industries and research areas where carbon-fibre-reinforced plastics are utilized or recycled, including:

• Composite Manufacturing: Facilitates quality control of CFRP fragments during production and post-processing.
• Material Characterization: Helps laboratories accurately assess particle size and shape distribution in crushed CFRP samples.
• Recycling Operations: Provides standardized methods for evaluating shredded CFRP waste to optimize reuse strategies.
• R&D in Composites: Enables researchers to compare results consistently across studies focused on CFRP material performance.
• Automotive and Aerospace Sectors: Supports compliance with strict material specifications for high-performance lightweight parts made from CFRP.

Related Standards

Professionals working with ISO 30012:2016/Amd 1:2018 may also benefit from referencing related ISO standards within the composites and plastics domain:

• ISO 527 - Plastics - Determination of tensile properties of plastics, applicable for CFRP mechanical evaluation.
• ISO 14129 - Composite materials - Determination of interlaminar shear strength.
• ISO 11357 - Plastics - Differential Scanning Calorimetry (DSC), relevant for thermal characterization.
• Other ISO/TC 61 family standards covering composite testing methods and material properties.

By adhering to ISO 30012:2016/Amd 1:2018, organizations ensure accurate and consistent measurement of crushed carbon-fibre-reinforced plastics, improving material reliability and facilitating sustainable composite material lifecycle management. For comprehensive details and implementation guidelines, acquiring the full amendment document is recommended.