February 2026: Essential Updates in Rubber and Plastics Standards for Fuelling and Latex Quality

In February 2026, the Rubber and Plastics Industries received significant updates with the publication of three new ISO standards. These releases address critical safety, quality, and testing requirements for aircraft fuelling hoses and natural rubber latex concentrates. Professionals in manufacturing, quality management, and procurement should pay close attention to these changes, as they directly influence product conformity, operational safety, and compliance within a rapidly evolving sector.

Overview / Introduction

The Rubber and Plastics Industries play a pivotal role in countless applications, ranging from aerospace refuelling to the production of high-grade rubber goods. International standards are central to ensuring consistency, reliability, and safety in both products and processes. For businesses and organizations dealing with rubber hose assemblies or raw latex concentrates, keeping up-to-date with the latest specifications is essential for maintaining product quality, meeting regulatory requirements, and sustaining global competitiveness.

In this comprehensive roundup, you'll learn about:

• The detailed requirements of ISO 1825:2026 for aircraft ground fuelling hoses
• New test methodologies in ISO 16947:2026 and ISO 16959:2026 for evaluating latex stability and viscosity
• Practical implications, compliance strategies, and technical best practices for implementing these standards

Detailed Standards Coverage

ISO 1825:2026 - Rubber Hoses and Hose Assemblies for Aircraft Ground Fuelling and Defuelling

Rubber hoses and hose assemblies for aircraft ground fuelling and defuelling — Specification

This latest fifth edition of ISO 1825 provides a comprehensive specification for four types of rubber hoses and assemblies used in all ground fuelling and defuelling operations of aircraft. The scope covers hoses designed for use with petroleum fuels containing up to 30% aromatic hydrocarbons by volume, and for operational temperatures from -30°C to +65°C (with low temperature variants rated down to -40°C and -48°C, respectively).

Key Requirements and Specifications:

• Classification: Four hose types (B, C, E, F) across two temperature classes—normal and low temperature
• Material and Construction:
  • Synthetic rubber linings resistant to petroleum fuels
  • Multi-layer textile reinforcements and, for types E and F, embedded helices for kink resistance
  • Conductive outer covers to manage static electricity
• Dimensions and Tolerances:
  • Strict tolerances on inside diameter, thickness, concentricity, and length
  • Maximum mass per unit length specified by hose type and diameter
• Electrical Properties:
  • Types B and E require low-resistance electrical bonding wires
  • Types C and F require semi-conductive covers and defined resistance values per assembly
• Physical and Performance Tests:
  • Oil and abrasion resistance, flexibility at both ambient and low temperatures, crush recovery, cyclic kinking, flammability, proof pressure (4.0 MPa), and burst pressure (8.0 MPa)
  • Marking requirements for both hoses and assemblies
  • Documentation such as test certificates/reports on demand
• Notable Changes (from previous edition):
  • Addition of two new temperature classes
  • Expanded nominal size options (up to 101.5mm)
  • Updated pressure test requirements
  • Modified ozone resistance protocols and other test updates for alignment with EI 1529

Who Needs to Comply: Hose manufacturers, aircraft ground support equipment providers, refuelling operators, and aviation MRO organizations.

Practical Implications:

• Enhanced safety through stringent test and electrical continuity requirements
• Better operational reliability in extreme environments
• Streamlined procurement and clarity in component interoperability
• Easier identification with standardized markings, including temperature class stripes

Key highlights:

• Covers four types of hoses (B, C, E, F) for various aviation ground fuelling operations
• Mandates extensive physical, chemical, and electrical performance testing
• Incorporates updated marking and documentation protocols for traceability

Access the full standard:View ISO 1825:2026 on iTeh Standards

ISO 16947:2026 - Natural Rubber Latex Concentrate — Determination of Zinc Oxide Stability Time (ZST)

Natural rubber latex concentrate — Determination of zinc oxide stability time (ZST)

ISO 16947:2026 introduces a key laboratory method to determine the zinc oxide stability time (ZST) in natural rubber latex concentrate—a critical property for latex processors and producers.

Scope and Procedure:

• Purpose: Assess the time required for visible flocculation after adding zinc oxide under specific alkalinity, dilution, and temperature conditions
• Test Principle: Stir latex at high speed after zinc oxide addition, recording the time to flocculation (expressed in seconds)
• Reference Methods: Utilizes fundamental ISO testing protocols for sampling (ISO 123), total solids (ISO 124), pH (ISO 976), and mechanical stability (ISO 35)
• Test Setup: Provides clear reagent, apparatus, sample preparation, and precision guidance for accurate, repeatable analysis

Who Needs to Comply: Natural rubber latex producers, quality control laboratories, rubber goods manufacturers, and procurement specialists sourcing latex.

Practical Implications:

• Ensures incoming raw materials are suitable for end-product applications (such as dipped goods, adhesives, and foamed products)
• Facilitates root cause analysis for production inconsistencies or failures
• Enables benchmarking of supplier materials and robust quality control practices

Key highlights:

• Standardizes the zinc oxide stability time test across the industry
• Improves consistency in latex quality assessment
• Supports laboratory safety and reporting best practices

Access the full standard:View ISO 16947:2026 on iTeh Standards

ISO 16959:2026 - Natural Rubber Latex Concentrate — Determination of Zinc Oxide Viscosity (ZOV)

Natural rubber latex concentrate — Determination of zinc oxide viscosity (ZOV)

Complementing ISO 16947:2026, this standard provides a detailed method for assessing the zinc oxide viscosity (ZOV) of natural rubber latex concentrate. Viscosity directly impacts the latex's processability and final product performance.

Scope and Methodology:

• Purpose: Determines the change in latex viscosity after treatment with zinc oxide, under controlled conditions using stabilizing and gelling agents
• Principle: Latex is treated with potassium oleate and ammonium sulphate, followed by viscosity measurement at a specified time after zinc oxide addition
• Applicable Methods: References core ISO methods for sampling (ISO 123), solids content (ISO 124), pH (ISO 976), and the Brookfield test for viscosity (ISO 1652)
• Relevance: Provides reliable indicators of latex suitability for downstream processing, such as dipping, molding, and foam manufacture

Who Needs to Comply: Latex concentrate processors, laboratory technicians, end-user manufacturers, and quality assurance teams.

Practical Implications:

• Enables better control of latex batches for targeted process requirements
• Reduces risk of end-product variability and production line issues
• Supports procurement and supplier qualification with standardized, reproducible test parameters

Key highlights:

• Defines a uniform procedure for zinc oxide viscosity determination
• Enhances process control and product uniformity across supply chains
• Aligns lab practices globally for manufacturers and raw material suppliers

Access the full standard:View ISO 16959:2026 on iTeh Standards

Industry Impact & Compliance

The February 2026 standards refresh for the Rubber and Plastics Industries brings several benefits and challenges:

How These Standards Affect Businesses

• Manufacturers: Must update product design, testing routines, and documentation to align with revised technical and test requirements
• Quality Managers: Need to verify supplier conformance with updated hose and latex concentrate standards, using the specified test methods
• Procurement Specialists: Gain clarity and confidence when sourcing components or raw materials with verified compliance certificates
• Operators/End Users: Benefit from enhanced safety, better performance, and longer asset life with products built on robust, internationally harmonized requirements

Compliance Considerations

• Transition Timelines: Organizations should review project pipelines to transition to the new standards, updating procurement and QA protocols as soon as possible
• Documentation: Ensure all products and raw materials are accompanied by updated compliance/test reports referencing the latest ISO documents
• Supplier Communication: Alert suppliers and partners to revised or new requirements to ensure uninterrupted supply chain quality

Benefits of Adopting the Updated Standards

• Improved operational safety and reliability
• Reduction in quality defects and costly recalls
• Streamlined regulatory audits and customer approvals

Risks of Non-Compliance

• Supply chain disruptions due to products not meeting new criteria
• Increased liability risks for non-conforming hose assemblies or latex batches
• Potential failures during operation that may impact safety or product performance

Technical Insights

Common Technical Requirements

• Test Frequency & Traceability: Both hose and latex standards emphasize documented, periodic testing for critical properties (mechanical, chemical, or performance)
• Detailed Reporting: Requirement for robust test reports and lot traceability to strengthen quality management systems
• Consistent Sampling: All latex methods reference ISO procedures for sampling and solids/pH measurement, underpinning accurate and repeatable lab results
• Physical Property Controls: For hoses, properties like tensile strength, abrasion, flexibility, and electrical continuity are closely specified. For latex, time-to-flocculation and viscosity provide vital quality checkpoints.

Implementation Best Practices

1. Update Internal Specifications: Align your company’s technical data sheets, internal standards, and inspection protocols to the latest ISO editions.
2. Invest in Laboratory Capability: Ensure test labs are equipped for new procedures, and staff are trained accordingly.
3. Strengthen Supplier Agreements: Require updated compliance certificates and product markings per the new standards.
4. Monitor Transition: Track implementation status, document challenges, and communicate changes across teams.

Testing and Certification Considerations

• For Hose Assemblies: Routine and type testing must be carried out, with proof and burst pressure testing, electrical continuity checks, and clear marking for traceability.
• For Latex Concentrates: Labs must establish reference baselines and precision targets for both ZST and ZOV procedures; all results should be included in material quality documentation.
• Certification: Consider third-party laboratory validation to further bolster credibility and acceptance in regulated or demanding customer environments.

Conclusion / Next Steps

The February 2026 publication of these three ISO standards marks a milestone for quality and safety within the Rubber and Plastics Industries. Whether your focus is on aircraft ground support, advanced rubber products, or material procurement, it is crucial to update your processes and compliance systems in line with the latest international benchmarks.

Key Takeaways:

• Major updates to hose assembly requirements enhance aviation refuelling reliability and safety
• Standardized latex testing methods help ensure uniform product quality and process control
• Adopting these standards protects your reputation and supports long-term competitiveness

Recommendations:

• Review and integrate these standards into your production, testing, and procurement workflows
• Train relevant staff in new test methods and marking requirements
• Work closely with suppliers to ensure raw materials and components meet updated criteria

Stay ahead in quality and compliance—explore the full standards on iTeh Standards and ensure your organization remains a leader in the Rubber and Plastics Industries.