Overview
ISO 2067:2019 is an international standard developed by the International Organization for Standardization (ISO) that specifies a standardized sampling method for determining the moisture content of granulated cork, broken cork, and crushed cork. This fourth edition updates the previous 1998 version, refining the scope and methodology to ensure consistency, accuracy, and reliability in moisture content testing for cork products.
Moisture content is a critical quality parameter affecting the performance, durability, and processing of cork materials. ISO 2067:2019 provides a clear, practical approach to sampling both bulk and packaged cork to facilitate proper laboratory analysis.
Key Topics
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Scope and Applicability
The standard applies to sampling granulated, broken, and crushed cork for moisture testing. It is relevant for manufacturers, suppliers, and quality control laboratories involved in cork processing.
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Sampling Methods
The standard differentiates between sampling products in bulk and those in packages:
- Bulk Products: Randomly collect at least 25 liters distributed evenly throughout the batch, divide into two hermetically sealed laboratory samples-one for testing and one for control.
- Packaged Products: Randomly select at least 5 packages amounting to a minimum of 50 liters, then from these extract about 25 liters for testing, similarly divided for analysis and control.
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Batch Handling and Timing
Samples must be taken from homogenous batches containing a single type of cork, with a maximum 24-hour interval between initial mass measurement and sampling to preserve sample integrity.
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Sampling Documentation
A comprehensive sampling report must accompany the procedure, including product designation, batch identification, sampling dates, supplier and customer details, batch mass data, and any sampling incidents impacting results.
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Terminology
The standard references ISO 633 for cork-related vocabulary to ensure consistent terminology across the industry.
Applications
Implementing ISO 2067:2019 offers several practical benefits for stakeholders in the cork industry:
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Quality Control
Ensures that moisture content measurements are representative and reproducible, essential for maintaining cork product quality and compliance with industry requirements.
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Supply Chain Transparency
Facilitates clear communication between suppliers and customers by providing a verified sampling procedure and reporting standards.
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Process Optimization
Accurate moisture content data supports optimization of drying, storage, and manufacturing processes, improving material performance and reducing waste.
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Regulatory Compliance
Assists companies in meeting international and regional standards for cork products used in stopper manufacturing, insulation, and other industrial applications.
Related Standards
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ISO 633: Cork - Vocabulary
Defines relevant terms and ensures uniform language use in cork standardization documents.
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Other ISO Cork Standards
ISO develops numerous standards covering cork product classification, testing methods, and environmental sustainability, which complement ISO 2067:2019 in ensuring comprehensive quality assurance.
By adhering to ISO 2067:2019, organizations involved in cork production and handling can achieve consistent, reliable moisture determination, critical to product quality and industry best practices. For full compliance, users should refer to the official publication available through ISO or their national standards body.
Open preview (PDF)Granulated cork, broken cork and crushed cork — Sampling for the determination of moisture content
