NASA - MSFC-STD-3535
STANDARD FOR PROPELLANTS AND PRESSURANTS USED FOR TEST AND TEST SUPPORT ACTIVITIES AT SSC AND MSFC
|Publication Date:||21 May 2019|
The purpose of this standard is to specify the minimum requirements for the certification and maintenance of propellant and pressurant (P/P) systems used for the purpose of rocket engine testing, test operations, ground support operations, center laboratory operations, and center facility operations.
This standard is applicable to ground-based rocket propulsion test, test support, center sample analysis laboratory, and center operation facilities for P/P requiring system certification. P/P quality provided to the user interface points shall meet or exceed program, test article, center or laboratory requirements. Programs or customers may impose additional requirements. In such cases, process changes and supplemental procedures may be required.
Propellants and pressurants covered in this standard are high purity air (HPA), gaseous nitrogen (GN2), liquid nitrogen (LN2), gaseous hydrogen (GH2), liquid hydrogen (LH2), gaseous oxygen (GOX), liquid oxygen (LOX), gaseous helium, and liquid helium, breathing air, gaseous methane, liquid methane, Rocket Propellant-1 (RP1), Rocket Propellant-2 (RP2) and hydrogen peroxide (H2O2).
This standard applies the following: All mandatory actions (i.e., requirements) are denoted by statements containing the term, "shall." The terms: "may" or "can" denote discretionary privilege or permission; "should" denotes a good practice and is recommended, but not required; "will" denotes an expected outcome; and "are/is" denotes descriptive material.