ISO 14951-5:1999 PDF

This part of ISO 14951 specifies limits for the chemical composition and physical properties of N₂O₄ propellant and test methods for verification of propellant composition. This part of ISO 14951 is applicable to N₂O₄ propellant of the following types and grades, intended for use as an oxidizer in propellant systems of space systems:

• types
  • NTO: nominal 99,5 % N₂O₄ purity with red-brown colour;
  • MON-1: nominal 99 % N₂O₄ and 1 % NO with green colour;
  • MON-3: nominal 97 % N₂O₄ and 3 % NO with green colour;
  • MON-10: nominal 90 % N₂O₄ and 10 % NO with green colour;
  • MON-25: nominal 75 % N₂O₄ and 25 % NO with green colour;
• grades:
  • standard: no iron requirement;
  • low-iron: 0,5 μg/g iron maximum.

This part of ISO 14951 is applicable to propellant used in both flight hardware and ground facilities, systems, and equipment. It is applicable to influents only to the extent specified herein.