Aerospace series. Space systems. Fluid characteristics, sampling and test methods - Helium Ingestion-build-89079 Improving the contribution of communities

Improving the contribution of communities to sustainable development outcomes

Pressure/temperature ratings of the soft seated valve are dependent on both the body rating and the pressure capability of the seats

the reuse of equipment

Service users

Electric engineers

Aerospace series. Space systems. Fluid characteristics, sampling and test methods - Helium Ingestion-build-89079 Improving the contribution of communities1 Scope This part of ISO 15859 specifies limits for the composition of helium and establishes the sampling and test requirements applicable for the verification of the helium composition. This part of ISO 15859 is applicable to helium, used in both flight hardware and ground facilities, systems and equipment, of the following types and grades. Type I: gaseous Grade A: purging and pressurizing helium; Grade F: purging and pressurizing helium; Grade J: