AS ISO 16111:2020 pdf free.Transportable gas storage devices – Hydrogen absorbed in reversible metal hydride.
4.3 Temperature ranges
4.3.1 Operating temperature range
The minimum and maximum Mu assembly temperature for normal operating conditions shall be specified by the manufacturer.
4.3.2 Service temperature range
The minimum and maximum ambient shell temperatures for normal service conditions shall he a minimum of—40 °C and a maximum of +65 °C. lithe maximum and minimum shell temperatures are to be different from those specified, they shall be identified by the manufacturer.
4.4 Environmental conditions
The MH assemblies are expected to be exposed to a number of environmental conditions over their service life, such as vibration and shock, varying humidity levels, and corrosive environments. The manufacturer shall specify the environmental conditions for which the MH assembly was designed.
4.5 Service life
The service life for the MH assemblies shall be specified by the manufacturer on the basis of use under service conditions specified herein. The service life shall not exceed that specified by the standard to which the shell is designed according to 5.3.
4.6 Hydrogen quality
The minimum quality of the hydrogen gas that shall be used to fill an MH assembly shall be specified by the manufacturer according to Iso 14687 (all parts) or as appropriate.
If the quality of the hydrogen gas is considered a critical issue to avoid performance degradation of the MH assembly, the manufacturer may consider including the information on the product label.
4.7 Special service conditions
Any additional service conditions that shall be met for the safe operation, handling and usage of the MH assembly shall be specified by the manufacturer.
5 Design considerations
5.1 General
The MH assembly shall be designed and constructed to prevent leakage of free hydrogen gas or metal hydride particles under normal service anti operating conditions.
5.2 Material selection
5.2.1 General
The MI-I assembly components shall he made of materials that are suitable for the range of conditions expected over the life of the MH assembly. Components that are in contact with gaseous hydrogen and/or metal hydride material shall be sufficiently resistant to their chemical and physical action under normal service or operating conditions to maintain operational and pressure containment integrity.AS ISO 16111 pdf download.