Stretch filmStretch film

Comparison of the different methods of the ASTM D8314 standard for performance testing of applied stretch films and stretch packaging

Metropack, a certified and accredited laboratory, at the ISTA 2022 symposium, focused on studying the performance of stretch films and stretch packaging. This study emphasizes the importance of the ASTM D8314 standard, an essential reference in evaluating packaging materials.

Experimental Methodology

The methodology adopted for this study involves the use of various testing apparatuses and configurations. Key parameters, such as sample dimensions and weight, as well as pre-stretching conditions, were carefully defined to ensure the accuracy and relevance of the results.

Results and Analysis

The obtained results provide a detailed overview of the practicality of various applied tests, such as the Pull Plate, Pull Bar, and Double Finger. Special attention was given to the impact of stretching, stretching speed, and relaxation time on the performance of the tested materials.


In conclusion, the study provides insights into the performance of stretch films and stretch packaging, highlighting the importance of the ASTM D8314 standard in the field. The presented results and analysis offer significant perspectives for the industry and guide future recommendations.

ISTA 2022 : 8th European symposium ISTA (Berlin, Germany)

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Comparison of the different methods of the ASTM D8314 standard for performance testing of applied stretch films and stretch packaging


ASTM International, a renowned organization for its leadership in developing international standards, plays a pivotal role in defining the standards governing the packaging industry. Founded in the late 19th century, this organization has established itself as an indispensable pillar for professionals seeking reference technical standards, covering a wide range of sectors. Among these standards, ASTM D8314 precisely defines standard test methods for evaluating the mechanical properties of packaging materials through tensile testing.

The development of this standard is not merely a technical endeavor; it also embodies a commitment to meeting contemporary requirements for sustainability, safety, and packaging performance. ASTM D8314 aims to ensure that materials used in the packaging industry offer optimal product protection while adhering to environmental and safety criteria for consumers. In a context marked by increased awareness of environmental issues and a constantly reinforced quality requirement, the adoption and application of this standard are crucial for industry stakeholders.

The significance of ASTM D8314-20 extends beyond technical aspects to encompass a comprehensive approach to quality and responsibility. By defining rigorous testing methods for the mechanical properties of packaging materials, it contributes to elevating industry standards, thus promoting the safety, sustainability, and effectiveness of packaging solutions. This introduction aims to dissect the role and impact of ASTM D8314-20, shedding light on its strategic importance for development and innovation in the packaging domain.


Practical applications of ASTM D8314 Standard

ASTM D8314, with its precise definition of test methods to evaluate the mechanical properties of packaging materials, finds application in a multitude of industrial sectors. Its widespread adoption underscores the importance of having unified criteria to ensure the quality, safety, and durability of packaging. This section aims to explore the practical applications of this standard, highlighting its impact across various industries.

1. Application sectors

ASTM D8314 applies to a wide range of packaging materials, including plastics, composites, papers, and cardboard, making it a preferred reference for the food, pharmaceutical, cosmetic, and many other industries. By defining standardized testing procedures, it enables manufacturers in these sectors to ensure that their packaging meets strict performance and safety requirements.

- Food industry: In this sector, the standard ensures that packaging preserves the integrity of food products, maintaining their freshness, and protecting them from external contaminants. 
- Pharmaceutical sector: Compliance with the standard's specifications ensures that packaging effectively protects pharmaceutical products, preserving their efficacy and ensuring patient safety. 
- Cosmetics industry: The standard ensures that packaging contributes to preserving the properties of cosmetic products while offering adequate resistance during transportation and use.

2. Use cases

The tests prescribed by ASTM D8314 allow for the evaluation of tensile strength, elongation, and other essential mechanical properties of packaging materials. This information is critical for the development of new packaging and the enhancement of existing solutions.

3. Benefits of using the standard

Adopting ASTM D8314 offers multiple benefits for manufacturers and consumers:

- For manufacturers, it provides a reference framework for the development and validation of packaging materials that meet the highest quality and safety requirements. It also facilitates obtaining certifications and regulatory compliance. 
- For consumers, it ensures that the products they purchase are packaged in materials that have been rigorously tested and approved, thus ensuring better protection and increased safety.

Impact of the standard on packaging quality and safety

ASTM D8314, defining standard test methods for characterizing the mechanical properties of packaging materials, has a significant impact on the quality and safety of packaged products. This section discusses the essential contributions of this standard to improving industry packaging standards, highlighting its role in promoting sustainability and strengthening regulatory compliance.

1. Improvement of packaging material selection criteria

ASTM D8314 establishes precise and measurable criteria for evaluating the mechanical properties of packaging materials, such as tensile strength and elongation. These criteria enable manufacturers to engage in more rigorous material selection, choosing those that best meet the specific requirements of each application. This approach not only ensures optimal product protection but also fosters innovation in the development of more efficient and durable materials.

2. Contribution to sustainability and circular economy

By guiding manufacturers toward the use of packaging materials that combine mechanical performance and sustainability, ASTM D8314 plays a key role in reducing the environmental impact of packaging. Selecting materials that maintain their integrity and functionality over a longer period helps reduce the amount of waste generated. Furthermore, the standard encourages the adoption of practices favorable to the circular economy, such as recycling and reusing packaging materials, by ensuring that these materials retain adequate mechanical properties after recycling.

3. Reinforcement of regulatory compliance and product safety

Compliance with ASTM D8314 specifications helps companies comply with local and international regulations regarding packaging safety. By adopting this standard, manufacturers demonstrate their commitment to providing safe and reliable packaging, thus minimizing risks to consumer health and safety. Moreover, this compliance facilitates access to international markets, where packaging quality and safety requirements are increasingly stringent.


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