Aerospace series. Space systems. Fluid characteristics, sampling and test methods - Helium Ingestion-build-89079 providing step-by-step guidance to implementing

providing step-by-step guidance to implementing the right policies

Improving the contribution of communities to sustainable development outcomes

PD CEN/TS 17261 describes a methodology for the evaluation of biometric authentication for AACSs against the specified requirements

To make results comparable

Service users

Aerospace series. Space systems. Fluid characteristics, sampling and test methods - Helium Ingestion-build-89079 providing step-by-step guidance to implementing1 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: