**2.3 Compatibility with ADN-based liquid propellants of COTS hydrazine systems' parts, components, and materials**

The possibility to use commercial off-the-shelf (COTS) construction materials, which are used in typical hydrazine propulsion system components (tubing, valves, filters, etc.), increases the flexibility, improves the reliability, and reduces the costs for introducing the ADN-based reduced hazards' propellants technology on future missions. FOI and ECAPS, who promote the ADN-based RHP FLP-106 and LMP-103S, respectively, have confirmed that most components can be COTS hydrazine propulsion system components [31, 32].

The materials, typically utilized for hydrazine propulsion systems, have been verified to be compatible with ADN-based liquid propellants and specifically with the LMP-103S space-proven aboard the Prisma satellite that was launched in June 2010 and operated successfully in space for 5 years. **Table 1** (based on Ref. [33]) presents these for the Prisma satellite.

In the present work, this concept is extended beyond previous works [23], to include also COTS monopropellant hydrazine thrusters, as described below.
