Overview
ISO 19880-8:2019/Amd 1:2021 is an important amendment to the international standard focusing on gaseous hydrogen fuelling stations, specifically addressing fuel quality control. This amendment aligns the quality requirements of hydrogen fuel dispensed to Polymer Electrolyte Membrane (PEM) fuel cell road vehicles with Grade D of ISO 14687. The document provides comprehensive guidelines for monitoring and controlling impurities in hydrogen fuel to ensure safety, reliability, and optimal fuel cell performance.
Key Topics
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Fuel Quality Alignment
This amendment harmonizes the fuel quality control criteria at hydrogen fuelling stations with the stringent impurity thresholds defined in Grade D of ISO 14687. This ensures compatibility and safety for PEM fuel cell vehicles.
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Impurity Thresholds and Severity Classes
The document outlines specific threshold values for various impurities such as inert gases (nitrogen, argon, helium), oxygen, carbon monoxide, methane, water, sulfur compounds, ammonia, hydrocarbons (excluding methane), formaldehyde, formic acid, halogens, and particulates. Each impurity is associated with a severity class indicating the potential impact on fuel cell systems.
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Risk Assessment and Impact on Fuel Cells
It is mandatory to evaluate the consequences if any impurity exceeds the threshold specified in ISO 14687 Grade D. A “Level 1” concentration is defined for some impurities, indicating higher severity levels that require additional monitoring or corrective actions.
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Probability of Impurities Occurring
The amendment includes detailed probabilities of impurity occurrence from various hydrogen production processes such as Steam Methane Reforming (SMR), pipeline delivery, and alkaline electrolysis. It also identifies typical barriers and control measures deployed in these processes to reduce contamination risks.
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Routine Analysis and Monitoring
Guidelines for routine sampling, monitoring points, and frequency of contaminant analysis are provided. Key contaminants like total sulfur, total hydrocarbons, carbon monoxide, nitrogen, argon, water, and oxygen are monitored annually downstream of the purification stage.
Applications
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Hydrogen Fuelling Stations
ISO 19880-8:2019/Amd 1:2021 applies directly to the operation and quality control systems of hydrogen fuelling stations, ensuring the fuel meets the necessary purity for the safe and efficient use of hydrogen fuel cell vehicles.
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PEM Fuel Cell Vehicle Operators
Operators benefit from improved fuel quality assurance, minimizing the risk of performance degradation or damage due to fuel impurities.
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Hydrogen Fuel Producers and Distributors
The standard supports producers and distributors by offering clear impurity limits and control requirements, fostering consistency across the supply chain.
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Regulatory Authorities and Inspection Bodies
Authorities can use this amendment as a benchmark for compliance assessments and to promote safety and interoperability in hydrogen infrastructure.
Related Standards
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ISO 14687: Hydrogen Fuel Quality
The primary standard for hydrogen fuel quality specifying grades and impurity limits, with Grade D dedicated to fuel for road vehicle PEM fuel cells. ISO 19880-8:2019/Amd 1 specifically aligns its control criteria to Grade D.
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ISO 19880 Series: Hydrogen Fuelling Stations
The broader series outlining design, safety, and operational requirements for hydrogen fuelling stations.
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ISO/IEC Directives, Part 1 & Part 2
Guidelines used by ISO for the preparation and publication of standards, ensuring consistency and international applicability.
Practical Value
Implementing ISO 19880-8:2019/Amd 1:2021 ensures hydrogen fuel purity at fuelling stations matches stringent international requirements, crucial for:
- Extending the lifetime and performance of PEM fuel cells.
- Reducing operational risks linked to fuel impurities.
- Enhancing consumer confidence in hydrogen fuel as an alternative energy source.
- Facilitating global harmonization of hydrogen infrastructure standards.
- Supporting the transition to a clean hydrogen economy with reliable refuelling networks.
By adhering to the amendment’s impurity classification, severity levels, and monitoring protocols, stakeholders can maintain optimal fuel quality control, safeguarding fuel cell technology and accelerating sustainable hydrogen vehicle adoption.
Open preview (PDF)Gaseous hydrogen — Fuelling stations — Part 8: Fuel quality control — Amendment 1: Alignment with Grade D of ISO 14687