July 2026 Brings New Standards for Fluid Systems: Key Updates for Gas Networks and Compressed Air

The fluid systems industry receives a major update this July 2026 with the publication of four impactful international standards. These advances touch every aspect of the field, from underground gas distribution and potable water safety to vacuum measurement and the safe operation of air compressors. Whether you’re managing quality, leading engineering teams, overseeing compliance, or specifying procurement, these new standards equip you to operate at the highest level of safety, reliability, and regulatory alignment.

Overview

Fluid systems and their components underpin a vast array of industrial processes, public utilities, and engineered environments. From natural gas pipelines running beneath urban streets to the delivery of clean water and the precise operation of air-powered tools and laboratory vacuum equipment, high standards in design, operation, and testing are critical.

International standards in this domain not only safeguard infrastructure integrity and human health but also foster interoperability, sustainability, and technical excellence across industries. This article explains the latest July 2026 standards for:

• The rehabilitation of underground gas supply networks using modern polyethylene materials
• Migration testing of metals and semi-metals from plastic water pipes and fittings
• Calibration uncertainty in vacuum measurement technology
• Comprehensive safety requirements for air compressors and compressed air systems

Professionals reading this article will gain:

• A clear summary of each standard’s scope and key requirements
• Essential compliance highlights and timelines
• Technical best practices for implementation
• Insight into the wider impact on organizations and engineering workflows

Detailed Standards Coverage

EN ISO 11301-1:2026 - Rehabilitation of Underground Gas Networks Using Polyethylene (PE)

Piping systems for rehabilitation of underground gas supply networks – Part 1: Polyethylene (PE) material (ISO 11301‑1:2026)

The newly published EN ISO 11301-1:2026 marks a fundamental update for the rehabilitation of underground gas supply networks. It sets out the requirements and test methods for pipes and fittings in systems aimed at renovating or replacing buried gas pipelines, utilizing the advanced capabilities of polyethylene (PE) materials.

Scope and Application: This standard covers the performance and installation requirements for both the manufactured and as-installed conditions of PE piping and fittings. Its provisions apply to renovation techniques such as lining (with either continuous or close-fit pipes), and trenchless replacement approaches including pipe bursting, extraction, horizontal directional drilling, and impact moling. Notably, it establishes system performance at an operating temperature of 20°C.

Key Requirements:

• Specifies the use of solid-wall, single-layered PE pipes and co-extruded layered pipes where layers share the same minimum required strength (MRS) rating.
• Introduces requirements for jointing by butt fusion, electrofusion, injection-moulded fittings, and mechanical connections.
• Outlines comprehensive test methods for verifying geometric, mechanical, and physical characteristics both as manufactured and as installed.
• Details documentation, marking, installation practices, and final inspection procedures.

Who Needs to Comply: Gas distribution network operators, contractors specializing in pipeline rehabilitation, utility engineers, and PE piping manufacturers are primary stakeholders.

Practical Implications: Organizations can adopt modern, minimally disruptive trenchless technologies to extend the life of existing gas networks, improve safety, and reduce project costs and community impact. The standard also supersedes previous system standards (ISO 11299 series, ISO 21225 series) for PE in this application, streamlining industry compliance.

Key highlights:

• Aligns with best practices for trenchless gas pipeline renovation and replacement
• Enforces consistent performance for as-installed systems
• Facilitates compliance with evolving regulatory demands for gas network safety

Access the full standard:View EN ISO 11301-1:2026 on iTeh Standards

ISO 24994:2026 - Metal and Semi-Metal Migration in Plastic Pipes for Drinking Water

Plastics piping systems — Determination of selected metal and semi-metal migration values of plastic pipes, fittings and their joints

ISO 24994:2026 sets the benchmark for ensuring human health and water quality in plastic piping systems intended for drinking water. It provides a highly sensitive, standardized method for detecting the migration of potentially harmful metals and semi-metals using inductively coupled plasma mass spectrometry (ICP-MS).

Scope and Application: This standard applies to all plastics pipes, fittings, and joints used to transport water or raw water intended for human consumption. The analysis identifies migration of substances such as lead, tin, antimony, cadmium, chromium, copper, barium, magnesium, aluminum, nickel, zinc, and arsenic from the internal surfaces of piping components.

Key Requirements:

• Stipulates rigorous sample preparation, stagnation, and prewashing protocols for realistic simulation of end-use
• Use of grade 1 water or deionized water (ISO 3696) in testing
• Specifies the use of ICP-MS for multi-element, high-sensitivity detection
• Requires detailed reporting of results as both concentration and migration rate
• Ensures results support compliance with national and international drinking water regulations

Who Needs to Comply: Manufacturers and suppliers of plastic pipes and fittings, water utilities, testing laboratories, and regulatory authorities.

Practical Implications: Adhering to this standard ensures that products in contact with drinking water do not leach hazardous metals beyond safe limits. This is critical for safeguarding public health and maintaining the trust of regulators and consumers alike. Compliance also supports market access for manufacturers.

Key highlights:

• Standardizes migration testing for major metals of concern
• Employs advanced ICP-MS for maximum precision
• Essential for health compliance in potable water systems

Access the full standard:View ISO 24994:2026 on iTeh Standards

ISO 27893:2026 - Uncertainty Evaluation for Vacuum Gauge Calibration

Vacuum technology — Vacuum gauges — Evaluation of the uncertainties of results of calibrations by direct comparison with a reference gauge

The revision of ISO 27893:2026 delivers a comprehensive framework for evaluating and reporting uncertainties in the calibration of vacuum gauges by direct comparison with a reference device. It is instrumental in supporting accurate, traceable pressure measurements across research, industrial, and manufacturing environments.

Scope and Application: The standard defines sum and quotient models for computing uncertainties, supporting calibration protocols in line with ISO 3567. It addresses both Type A (statistically evaluated) and Type B (non-statistical) uncertainty components, and introduces guidance for reporting in calibration certificates.

Key Requirements:

• Details the determination and combination of uncertainty components due to the gauge under calibration, the reference standard, and calibration methods or conditions
• Includes coverage for error of reading, long-term stability, and environmental influences
• Introduces uniform certificate reporting to ensure transferability of uncertainty values between calibrations
• Provides guidance on efficient uncertainty analysis, especially when Type A uncertainties are not negligible (see Annex A)

Who Needs to Comply: Calibration laboratories, vacuum equipment manufacturers, research organizations, metrology institutes, and quality assurance professionals.

Practical Implications: Applying this standard ensures reliable measurement traceability to SI units, reduces risks of misinterpretation in process control, and supports compliance in regulated sectors such as semiconductor fabrication or scientific research.

Key highlights:

• Robust uncertainty analysis for vacuum calibration
• Ensures international traceability and comparability of measurements
• Establishes best practice in calibration documentation

Access the full standard:View ISO 27893:2026 on iTeh Standards

ISO 18623-1:2026 - Safety Requirements for Air Compressors

Air compressors and compressed air systems — Safety — Part 1: Air compressors

ISO 18623-1:2026 introduces an exhaustive set of safety requirements for the design, operation, maintenance, and decommissioning of air compressors and associated systems. It is purpose-built to address all significant hazards throughout the compressor’s lifecycle, targeting compressors with operating pressures above 50 kPa for air, nitrogen, or inert gases.

Scope and Application: This standard encompasses compressors, partially completed compressor units, and complete compressor assemblies—including those integrated into vehicles or powered by any means. It explicitly covers hazards arising from mechanical, electrical, thermal, chemical, and control system sources, and provides guidance on ergonomic factors.

Key Requirements:

• Demands robust mechanical guards and protective measures, safeguarding against mechanical failure, fluid injection, and loss of stability
• Specifies stringent electrical and control system protections (including emergency stop, overload, electromagnetic interference mitigation)
• Addresses fire, explosion, and hazardous substance risks—covering both biological and chemical exposures
• Outlines noise requirements and the need for user information (warning labels, instruction handbooks)
• Includes clear criteria for verification (pressure testing, noise measurement, marking)
• Excludes compressors used in potentially explosive atmospheres and for processing petroleum or chemicals

Who Needs to Comply: Compressor manufacturers, equipment integrators, workplace health and safety officers, installation and maintenance contractors, and industrial users across sectors ranging from manufacturing to logistics to utilities.

Practical Implications: Adoption of ISO 18623-1:2026 enables organizations to reduce workplace injury risks, comply with machinery safety legislation, and instill a culture of safety throughout the procurement, installation, and operational phases.

Key highlights:

• Comprehensive lifecycle safety requirements
• Wide coverage of mechanical, electrical, and operational risks
• Direct alignment with EU and international machinery safety directives

Access the full standard:View ISO 18623-1:2026 on iTeh Standards

Industry Impact & Compliance

The introduction of these four new standards represents a turning point for fluid systems and components across diverse sectors:

• Enhanced safety: Cleaner, safer utility networks, tool operation, and laboratory practices
• Assurance of water quality: Confidence that potable water infrastructure is free from hazardous metal contamination
• Reliability and measurement accuracy: Improved traceability and repeatability in vacuum and pressure measurement, supporting quality control, research, and process safety
• Regulatory compliance: Streamlined alignment with national, EU, and international safety and quality requirements

Compliance Considerations and Timelines Organizations should:

• Integrate new specification and testing requirements into procurement documents
• Update quality management systems and operating procedures to reflect the latest requirements
• Schedule training for staff on new testing, installation, and safety protocols
• Monitor for any regulatory or client mandates that set deadlines for compliance

Risk of Non-Compliance Failure to adopt these updated standards can expose companies to significant risks, including:

• Increased liability in case of accidents or system failures
• Regulatory penalties or market access restrictions
• Customer trust erosion and reputational harm

Benefits of Adoption

• Safer workplaces and public assets
• Improved product reliability and service life
• Competitive advantage through demonstrable compliance
• Streamlined maintenance, less downtime, and lower total cost of ownership

Technical Insights

Across these revised and new standards, a number of technical themes emerge:

1. Rigorous Verification and Testing

• Requirement to verify as-installed conditions, not just as-manufactured
• Emphasis on reproducible, traceable, and validated test methods (e.g., ICP-MS, pressure testing, direct comparison calibrations)

2. Documentation and Traceability

• Comprehensive reporting requirements (installation certifications, calibration certificates, test reports)
• Marking and labeling obligations for traceability and user safety

3. Systems Integration and Interoperability

• Detailed guidance for integrating new materials and technologies into legacy infrastructure
• Uniform certificate reporting (vacuum calibration) to ensure seamless handovers between facilities or service providers

4. Lifecycle Safety and Management

• Coverage of safety from design through installation, operation, maintenance, and disposal
• Guidance for mitigating risks tied to environmental or service conditions

Implementation Best Practices

• Conduct regular reviews of all relevant standards as part of annual quality audits
• Establish supplier qualification programs referencing the new standards
• Use certified laboratories and calibration services meeting ISO standards
• Plan phased rollouts to update existing networks and systems without disrupting service

Testing and Certification Considerations

• Ensure laboratory or field tests are performed using standard-specified methods
• Archive certification records and calibration reports for inspection or client queries
• Liaise with accredited bodies to maintain compliance and certification status

Conclusion / Next Steps

July 2026 marks a watershed for professionals working with fluid systems and their components. The four new international standards provide the blueprint for safer, more reliable, and compliant underground gas pipelines, potable water networks, precision vacuum measurements, and air compressors.

Key Takeaways:

• Incorporate these standards into ongoing and upcoming projects
• Train technical, compliance, and procurement staff
• Leverage iTeh Standards’ authoritative resources for full document access and ongoing guidance

Next Steps for Organizations:

1. Review and map requirements from each standard to your operational context
2. Update policies, procedures, and documentation
3. Schedule staff training and awareness sessions
4. Engage with certified suppliers and testing partners
5. Monitor developments and future revisions via iTeh Standards

Stay ahead in fluid systems engineering—ensure your teams, assets, and projects benefit from these critical updates and maintain industry-leading performance and compliance.