March 2026 Fluid Systems: New Standards for Hoses, Pipes, and Condition Monitoring

The international landscape for fluid systems and components continues to evolve with the release of five pivotal standards in March 2026. Addressing critical aspects such as machinery condition monitoring, hose performance for specialized applications, and enhanced pipe corrosion protection, these standards define the benchmarks for quality, safety, and operational reliability in the fluid systems sector.

Industry professionals—engineers, compliance managers, quality assurance teams, and procurement specialists—should be aware of these significant publications. This article, part 3 of a comprehensive four-part series, breaks down what’s new and why it matters for your organization.

Overview

Fluid systems and components play a fundamental role across industries from petrochemicals and manufacturing to water management and aerospace. Standards in this field are essential to ensure system compatibility, safety, efficiency, and regulatory compliance. In this update, discover how the latest standards keep you at the cutting edge of best practices—covering everything from dynamic machine diagnostics to hose assemblies for high-stakes environments and long-term pipeline protection.

By the end of this article, you’ll understand:

• The scope and technical requirements of each new standard.
• Key changes compared to previous editions.
• How your business and projects may be affected.

Detailed Standards Coverage

ISO 17934:2026 – Condition Monitoring and Diagnostics of Machines: Reciprocating Compressors

Condition monitoring and diagnostics of machines — Reciprocating compressors

This international standard delivers comprehensive guidance on condition monitoring (CM) techniques for reciprocating compressors, targeting the early detection of faults and promoting higher operational reliability. It provides non-mandatory guidelines to end-users, OEMs, consultants, and service partners, creating a shared framework that bridges communication and expectations among stakeholders.

Key requirements include methodologies for:

• Identifying and prioritizing failure modes in reciprocating compressors.
• Selecting and implementing CM strategies using both online and portable instruments.
• Adopting advanced monitoring tools, including AI-assisted diagnostics.

Industries impacted include oil and gas (upstream, midstream, and downstream), chemical processing, hydrogen transportation, and offshore installations. Adherence improves uptime, reduces maintenance costs, and aligns with today’s more demanding emissions regulations. Notably, the scope excludes auxiliary system monitoring and one-off acceptance testing, focusing squarely on operating conditions and ongoing health monitoring.

Key highlights:

• Accessible framework for interpreting machine health data and failure modes.
• Guidance spans different compressor types, speeds, and installations.
• Encourages data sharing to enhance diagnostic accuracy and system oversight.

Access the full standard:View ISO 17934:2026 on iTeh Standards

EN 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 (ISO 1825:2026)

The latest edition of this standard defines stringent requirements for four types of rubber hose and hose assemblage explicitly designed for ground fuelling and defuelling of aircraft. Covering dimensions, construction, and performance under demanding temperature and pressure conditions, it ensures hoses operate safely and reliably with petroleum fuels of up to 30% aromatic content, even in harsh climates.

Some changes include alignment with EI 1529, updated testing regimes, expanded temperature classes, and new nominal sizes. Electrical properties have been clarified for bonded and conductive hoses, and new methodologies address crush recovery, flexibility at low temperatures, and hydrostatic performance.

Intended primarily for aviation ground service operations, the specified hoses are also suitable for related logistical fuel transfers. Compliance ensures operational safety, reduces the risk of leaks, and minimizes downtime caused by hose failures.

Key highlights:

• Updated and harmonized test protocols (e.g., ozone, hydrostatic, and flammability).
• Expanded type and size ranges for operational flexibility.
• Applies to both fuelling and defuelling operations across global climate ranges.

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

EN ISO 28017:2026 – Rubber Hoses and Hose Assemblies, Wire or Textile Reinforced, for Dredging Applications

Rubber hoses and hose assemblies, wire or textile reinforced, for dredging applications - Specification (ISO 28017:2026)

This standard establishes the criteria for rubber hoses and hose assemblies used in both floating and submarine dredging applications, covering nominal sizes from 100 up to 1,300. It sets seven pressure classes and three grades for type 2 hoses based on construction and performance.

Key technical parameters include:

• Hydrostatic resistance, flexibility, and tensile strength.
• Abrasion, tear, and ozone resistance.
• Requirements for floating (delivery only) and submarine (delivery and suction) hoses.

These hoses facilitate the transport of water mixed with silt, sand, coral, and small stones—typical in dredging and reclamation operations. The standard covers routine inspection, buoyancy requirements for floating hoses, and rigorous criteria for adhesion, leak-proof performance, and low-temperature brittleness. Safety and longevity in challenging marine environments are central goals.

Key highlights:

• Expanded performance range for large-scale dredging projects.
• Detailed specification of classes, grades, and end fitting compatibility.
• Comprehensive suite of physical and routine tests for reliability.

Access the full standard:View EN ISO 28017:2026 on iTeh Standards

ISO 3994:2026 – Plastics Hoses: Helical-Thermoplastic-Reinforced for Suction and Discharge of Aqueous Materials

Plastics hoses — Helical-thermoplastic-reinforced thermoplastics hoses for suction and discharge of aqueous materials — Specification

The fifth edition of ISO 3994 details three types of flexible thermoplastic hoses suited for the suction and discharge of water, weak chemical solutions, and abrasive solids or slurries. The standard provides rigorous requirements for performance in environments from –10°C to 55°C and describes construction features—such as an integrated thermoplastic helix for added durability and flexibility.

Key requirements span:

• Working pressure limits for light-, medium-, and heavy-duty applications.
• Hydrostatic, vacuum, tensile, flexibility, and reinforcement fracture tests.
• Suitability for water and aqueous materials (excluding flammable or aromatic solvents).

Major users include facility and plant engineers in construction, chemical handling, agricultural, and general industrial sectors. Routine and type testing, robust marking protocols, and recommendations for packing and storage are included for lifecycle management.

Key highlights:

• Categorization by pressure class and duty cycle.
• Comprehensive test methodologies for consistent quality.
• Not intended for flammable liquids or aromatic solvents.

Access the full standard:View ISO 3994:2026 on iTeh Standards

EN 15542:2026 – Ductile Iron Pipes, Fittings and Accessories: External Cement Mortar Coating for Pipes

Ductile iron pipes, fittings and accessories - External cement mortar coating for pipes - Requirements and test methods

A crucial upgrade for pipeline infrastructure, EN 15542:2026 defines the requirements and testing methods for factory-applied external cement mortar coatings on ductile iron pipes, supporting both corrosion resistance and mechanical durability. Designed for pipes used in water, sewage, and gas distribution, the standard harmonizes with international references such as EN 545, EN 598, and EN 969.

Highlights include:

• Strict thickness and adhesion criteria for long-lasting corrosion protection in aggressive soils and trenchless installations.
• Definitions of material constituents—including approved cement types, aggregates, fibres, and polymer additives.
• Comprehensive impact and adhesion testing, with provisions for onsite handling and repair.

Pipes manufactured to these requirements achieve higher durability and lower maintenance, supporting infrastructure longevity and regulatory compliance for potable water, wastewater, and natural gas transmission.

Key highlights:

• Applicable to all corrosion loading classes and trenchless applications.
• Thickness and impact requirements for exceptional field performance.
• Integrates quality assurance and marking protocols for traceability.

Access the full standard:View EN 15542:2026 on iTeh Standards

Industry Impact & Compliance

The release of these five standards has immediate and long-term impacts for manufacturers, operators, service providers, and regulators:

• Enhanced Safety: Improved condition monitoring and materials testing reduce hazards, enabling earlier intervention and downtime avoidance.
• Regulatory Alignment: Updates reflect current best practices and harmonize requirements globally, simplifying cross-border compliance and procurement.
• Operational Efficiency: More accurate and standardized requirements allow for better equipment selection, maintenance planning, and resource optimization.
• Product Longevity: Greater emphasis on durability, practical testing, and resistance to harsh conditions results in lower lifecycle costs.

Organizations must review these new standards against their existing protocols. Transition actions often include:

1. Gap analysis against current procedures.
2. Staff training and supply chain alignment to new technical requirements.
3. Updating documentation and purchasing specifications.
4. Scheduling recertification or type testing where required.

Early adoption minimizes risk, ensures insurance and regulatory compliance, and demonstrates due diligence to clients and stakeholders.

Technical Insights

A review of these standards reveals several common technical themes:

• Material performance at temperature extremes: Many standards test for flexibility, embrittlement, and adhesion both in typical and extreme environments.
• Routine and type testing protocols: Uniform methodologies across products ensure ongoing quality and facilitate easier supplier qualification or product substitution.
• Traceable marking and reporting: Consistent marking requirements improve recall management and regulatory traceability.
• Construction-specific guidance: Detailed descriptions of construction—such as helix reinforcements or fibre/aggregate mixes—influence both in-field performance and inspection regimes.
• Compatibility and non-interference: Each standard bounds its requirements to avoid overlap or interference with adjacent system components or environmental regulations (e.g., water contact safety).

Implementation tips:

• Collaborate with suppliers to ensure compliance in new production lots.
• Update calibration and testing equipment as per revised specifications.
• Schedule periodic reviews as standards evolve further.

Conclusion & Next Steps

March 2026 marks an important milestone for professionals in fluid systems and component engineering. With new and revised standards for reciprocating compressor health, specialist and general-purpose hoses, and pipeline coatings, organizations have a clear path to improved quality, safety, and performance.

Recommendations:

• Conduct a detailed review of each applicable standard and update internal documentation accordingly.
• Train relevant staff on key changes and revised test or reporting requirements.
• Use iTeh Standards’ platform to access, monitor, and track new standard releases and updates for your sector: https://standards.iteh.ai

Stay ahead by making international best practices a cornerstone of your operations—ensuring robust compliance and optimized fluid systems performance.