NPFC - MIL-PRF-27407
PROPELLANT PRESSURIZING AGENT, HELIUM
Organization: | NPFC |
Publication Date: | 25 August 1997 |
Status: | inactive |
Page Count: | 8 |
scope:
This specification covers the requirements for two grades and two types of helium.
The helium will be of the following types and grades as specified (6.2):
The types of helium are as follows:
Type I - Gaseous
Type II - Liquid
The grades of helium are as follows:
Grade A - Pressurizing
Grade B - Respirable
intended Use:
Type I, Grade A helium is intended for pressurization of rocket engine propellant systems, space vehicles and associated ground support equipment, welding and other shielding gas operations. Type... View More
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