Five New International Standards for Rubber and Plastics Industries – June 2026 (Part 2)

In June 2026, the rubber and plastics industries saw the release of five significant international standards, marking critical advancements in material quality, product safety, testing protocols, and sector classification. For manufacturers, quality and compliance professionals, and engineers, these updates bring both challenges and opportunities to enhance competitiveness and ensure global market access. This article dives deep into each standard, providing clear guidance on practical implications, compliance, and implementation strategies.

Overview

The rubber and plastics sector is foundational to construction, transportation, packaging, and countless everyday products. Setting and following recognized standards in this field is essential—not just for meeting regulatory expectations, but also for ensuring product reliability, durability, and safety.

Standards in rubber and plastics industries guide the formulation of adhesives, testing of construction materials, determination of key properties like ash content, and normalization of product types such as tyres. By using these standards, organizations can:

• Guarantee the quality and safety of their materials and final products
• Streamline procurement and supplier relationships
• Facilitate international trade and regulatory compliance
• Keep up with technological innovation and environmental needs

In this article (Part 2 of 2), we examine five newly published standards from June 2026, their core requirements, impact on industry processes, and benefits to stakeholders.

Detailed Standards Coverage

EN 301:2023+A1:2026 – Adhesives for Load-Bearing Timber Structures

Adhesives, phenolic and aminoplastic, for load-bearing timber structures – Classification and performance requirements

This standard defines the classification and performance requirements for phenolic and aminoplastic adhesives used in the factory fabrication of load-bearing timber products. It is key for adhesive manufacturers and companies in engineered wood manufacturing, as well as structural and civil engineers concerned with durable timber construction.

The document distinguishes adhesives based on their performance in various service classes (1, 2, 3) and specific end uses: general purpose, finger jointing, and gap-filling. It prescribes rigorous performance testing—including tensile shear, delamination, and static load tests under diverse moisture and temperature conditions—to ensure long-term structural integrity.

Key requirements include:

• Classification into Type I and II based on suitability for climatic conditions
• Detailed physical property requirements (shear strength, durability under delamination, shrinkage, static load resistance)
• Mandatory testing for glue line thickness, with new protocols for thick and close-contact adhesive joints
• Enhanced assessment for adhesives applied to preservative-treated woods
• Supplemental criteria for labeling, sample preparation, and compliance with Eurocode 5 requirements (EN 1995-1-1)

Who should comply? Adhesive manufacturers, engineered timber suppliers, and those responsible for quality control in timber construction and prefabrication. The practical implication is a higher bar for demonstrating adhesive fitness for defined factory or factory-like manufacturing environments—ensuring safety and performance across disparate climates and applications.

Key highlights:

• Covers both new adhesives and type testing for quality assurance
• Incorporates revised protocols for glue line and material thickness
• Specifies requirements for both standard and preservative-treated timber adhesives

Access the full standard:View EN 301:2023+A1:2026 on iTeh Standards

EN 302-8:2023+A1:2026 – Testing Methods: Compression Shear for Adhesives

Adhesives for load-bearing timber structures – Test methods – Part 8: Static load test of multiple bond line specimens in compression shear

This standard introduces a robust method to assess the ability of adhesive bonds to withstand static loads under multiple climatic cycles. By testing compression shear strength across glue lines of various thicknesses (0.5 mm, 1 mm, and 2 mm), it helps manufacturers and quality managers evaluate adhesive suitability for structural use in timber construction.

Core to the standard is a comprehensive test method that simulates real-world environmental stresses, ensuring that adhesives classified per EN 301 and related standards deliver predictable, safe performance throughout a timber product’s lifecycle.

Key requirements and updates:

• Defines preparation, conditioning, and testing of specimens using untreated beech wood
• Applies rigorous climate cycling and measures deformations/failures after load testing
• Provides protocols for both close-contact and thick glue line configurations
• Specifies detailed apparatus, climate control, and loading procedures for repeatable results
• Deletes earlier mandatory requirements on reporting and bibliography, focusing on practical performance data

Target organizations include adhesive suppliers, third-party testing labs, building product manufacturers, and regulatory certifiers validating compliance with Eurocode frameworks.

Key highlights:

• Expands test methods to cover thicker glue lines up to 2 mm
• Facilitates comparison of adhesive performance in different climates
• Directly supports compliance with timber structure safety regulations

Access the full standard:View EN 302-8:2023+A1:2026 on iTeh Standards

EN 438-9:2026 – High-Pressure Decorative Laminates: Alternative Core Laminates

High-pressure decorative laminates (HPL) – Sheets based on thermosetting resins – Part 9: Classification and specifications for alternative core laminates

Part 9 of the EN 438 series focuses on alternative core HPLs—products with non-standard core layers such as colored or metal-reinforced types. These are used for premium interior applications, including design-focused furniture, wall cladding, and public space fit-outs where unique aesthetic and technical properties are required.

The standard sets out:

• A three-letter classification system to identify types and grades
• Performance requirements for physical properties (thickness tolerances, edge quality, dimensional stability, fire retardance)
• Inspection protocols for both visual and mechanical properties
• Specification of test methods for density, flexural strength, and vapor transmission
• Guidance for agreeing special visual and fabrication tolerances with buyers

Who must comply: HPL manufacturers, interior architects, procurement specialists in construction and commercial interiors, and quality inspectors overseeing procurement and installations.

This update aligns requirements with other parts of the EN 438 series and changes density criteria for colored core laminates, enhancing product consistency and market understanding.

Key highlights:

• Extends classifications for colored and metal-reinforced cores
• Aligns requirements with broader EN 438 family
• Introduces improved fire performance grades

Access the full standard:View EN 438-9:2026 on iTeh Standards

EN ISO 3451-1:2026 – Plastics: Determination of Ash (General Methods)

Plastics – Determination of ash – Part 1: General methods (ISO 3451-1:2026)

Ash content determination plays a critical role in analyzing plastic composition, identifying contaminants, and ensuring consistent material properties. EN ISO 3451-1:2026 specifies versatile, validated methods (including direct calcination, sulfation, automated and thermogravimetric methods) suitable for a broad range of plastic materials and products—including unfilled, filled, reinforced, and flame-retarded plastics.

The standard:

• Provides procedures for five main test methods, including direct calcination, calcination with/without sulfuric acid, automated instruments, and thermogravimetry
• Defines temperature and apparatus requirements for reliability and repeatability
• Requires careful safety procedures for hazardous substances and high-temperature testing
• Is referenced by subsequent standards for material-specific conditions (e.g., for polyamides, PET, PVC)

Compliance is essential for plastics producers, formulators, and test labs involved in quality control, product certification, R&D, and regulatory submissions. Accurate ash determination ensures product consistency, supports claims about additives/fillers, and can help detect process contamination.

Key highlights:

• Comprehensive procedures covering all major plastics and composites
• New high-temperature option (1100°C) and thermogravimetric method added
• Basis for quality assurance and regulatory compliance across global markets

Access the full standard:View EN ISO 3451-1:2026 on iTeh Standards

ISO 18805:2026 – Tyre Classification for Agricultural, Forestry and Construction Machines

Tyre classification — Agricultural, forestry and construction machines

This international standard delivers a unified system for the classification codes of tyres used on agricultural, forestry, and construction machines. As tires for these vehicles vary widely in design and application, a clear nomenclature is essential for regulators, manufacturers, procurement specialists, and maintenance engineers.

Key provisions include:

• Definitions of relevant terms and designation systems for tire types
• Classification codes that distinguish by design, usage, and machine category
• Scope covering both tractors and mobile machinery across sectors
• Guidance for harmonizing procurement, inventory management, and international trade

With increasing complexity in machine fleets and greater regulatory and logistics scrutiny, this standard supports streamlined operations, safer equipment deployment, and better cross-border supply chain management.

Key highlights:

• Standardizes classification and nomenclature for off-road tyres
• Supports procurement efficiency and technical documentation
• Facilitates regulatory compliance and product interoperability

Access the full standard:View ISO 18805:2026 on iTeh Standards

Industry Impact & Compliance

Implementing these updated standards is crucial for stakeholders across the rubber and plastics industries. Primary impacts and considerations:

• Compliance: New requirements may affect supplier qualification, process validation, documentation, and internal audits. The transition deadlines (often by December 2026 for CEN standards) mean affected organizations should start aligning processes and updating technical documentation now.
• Market Access: Adopting the latest standards ensures continued or improved eligibility to supply regulated markets within Europe and internationally.
• Risk Mitigation: Ensuring adhesives and construction materials pass updated testing reduces liability in structural failures and product recalls. Correct tire classification avoids costly miscommunication and regulatory penalties.
• Process Improvement: New methods (e.g., for ash content) support improved production control, error detection, and resource optimization.

Benefits of Compliance

• Enhanced product safety and reliability
• Better customer confidence and reduced claim rates
• Easier cross-border sales and procurement
• Streamlined supplier management and quality assurance

Non-Compliance Risks

• Failed certifications or legal non-conformity
• Barriers to market entry or business growth
• Increased warranty claims or safety incidents

Technical Insights

Common Requirements

• Accurate, repeatable testing methods (e.g., climate cycling for adhesives, ash content determination)
• Clear documentation and records for test data, product labeling, and traceability
• Material and process validation, especially when products are used in safety-critical construction roles

Best Practices for Implementation

1. Gap Analysis: Compare your current processes, materials, and test methods with new standard requirements.
2. Training: Educate staff on new test procedures, labeling, and compliance documentation.
3. Supplier Engagement: Communicate updates to suppliers to ensure their offerings are aligned and tested against new specifications.
4. Testing and Certification: Work with accredited labs to revalidate adhesives, plastics, or laminated materials; ensure testing apparatus are calibrated for new protocols.
5. Ongoing Monitoring: Create a standards review schedule to ensure future updates are integrated without delays.

Testing and Certification

• Use accredited laboratories for new adhesive and plastics testing (referenced in EN 301 and EN ISO 3451-1)
• Document results and certificates for regulatory and client audits
• Maintain version control and revision tracking across technical files

Conclusion and Next Steps

The release of these five standards in June 2026 signifies a strong evolution in materials specification, quality assessment, and product classification within the rubber and plastics industries. Organizations—manufacturers, suppliers, and end-users—are urged to:

• Review and integrate the requirements into internal processes
• Coordinate with suppliers and testing partners for smooth transitions
• Keep technical staff and procurement teams informed
• Access the full text of each standard for comprehensive understanding
• Monitor iTeh Standards for future updates and guidance

By adopting these standards promptly, your organization not only ensures regulatory compliance but also signals a commitment to safety, performance, and continuous improvement.

Explore these and other latest standards in the Rubber and Plastics Industries on iTeh Standards. Stay ahead and safeguard your business today!