DIN EN 16603-35-06 PDF Download

For spacecraft propulsion components, the DIN EN 16603-35-06 standard, also known as ECSS-E-ST-35-06, focuses on cleanliness standards. It is applicable to systems, subsystems, and components utilized in propulsion in the mechanical branch of space engineering.

The standard specifies design standards that make it easier to clean propulsion hardware and stop the buildup of unwelcome contaminants. It outlines the standards for cleanliness that must be upheld, including the permitted concentrations of particles, contaminants, and moisture.

The standard also specifies the cleaning procedures that must be followed and the standards for determining the degree of cleanliness. It outlines the suggested method for reaching and upholding the necessary cleanliness, as well as any compatibility requirements. The standard also specifies the circumstances under which cleaning and cleanliness verification shall take place, including compatibility tests following environmental testing.

The primary focus of the standard is on the cleanliness of propulsion systems using frequently used propellants such as hydrazine, monomethyl hydrazine, mixed oxides of nitrogen, nitrogen, helium, propane, butane, and xenon. The European spacecraft and spacecraft propulsion industries use it as the foundation for ensuring that the cleanliness standards in these systems are met and validated.

It should be noted that a different standard known as ECSS-Q-ST-70-01 covers the standards for external cleanliness, including elements like fungi and outgassing. Additionally, in accordance with the recommendations offered by the ECSS-S-ST-00 standard, the DIN EN 16603-35-06 standard can be customized as needed for particular space projects.