1. Society of Automotive Engineers (SAE) J2719 Proposed Draft February 2009: Information Report on the Development of a Hydrogen Quality Guideline for Fuel Cell Vehicles.
2. International Organization for Standardization (ISO) Committee Draft (CD)14687-2: Hydrogen fuel — Product Specification — Part 2: Proton exchange membrane (PEM) fuel cell applications for road vehicles.
3. A review of PEM hydrogen fuel cell contamination: impacts, mechanisms, and mitigation;Cheng;Journal of Power Sources,2007
4. ASTM D7650-10-Standard Test Method for Sampling of Particulate Matter in High Pressure Hydrogen used as a Gaseous Fuel with an In-Stream Filter.
5. ASTM D7651-10-Standard Test Method for Gravimetric Measurement of Particulate Concentration of Hydrogen Fuel.