JPL spacecraft sterilization technology program - A status report
Facility description and procedures for heat and ethylene oxide sterilization of spacecraft instrumentation, components, and materials
FACILITY↗
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Solid State Electrolytes Prepared from PEO (360) Silanated Silica
All solid state composite electrolytes were prepared using fumed silica (SiO2) silanated with an oligomeric polyethylene oxide (PEO) silane containing 6-9 ethylene oxide repeat units, a PEO matrix and LiClO4 (8/1 O/Li). The PEO-silane covalently attached to the silica was amorphous, with a T(sub g) that increased from -90 C to -53 C after attachment. The conductivity of films prepared using the PEO-silanated silica increased to approx. 6 x 10(exp -5) S/cm at RT compared with approx. 1 x 10(-5) S/cm for films prepared with unsilanated SiO2.
Maitra, P.↗
Biological sciences communication project Quarterly report, Apr. 1 - Jun. 30, 1967
Bibliographies on ethylene oxide sterilant, aerospace medicine, environmental science, exobiology, physical biology, planetary quarantine, and bioscience communications
AEROSPACE MEDICINE↗
Effectiveness of Dry Heat and Ethylene Gas upon Spore Contamination Located Between Mated Surfaces and on Exterior Surfaces of Various Materials
Effectiveness of dry heat and ethylene oxide gas on spore contamination located between mated surfaces and on exterior surfaces of materials
SPACECRAFT STERILIZATION↗
Encapsulation process sterilizes and preserves surgical instruments
Ethylene oxide is blended with an organic polymer to form a sterile material for encapsulating surgical instruments. The material does not bond to metal and can be easily removed when the instruments are needed.
Montgomery, L. C.↗
Sterilizable liquid propulsion system Quarterly progress report
Module truss, propellant tanks, and functional tests for sterilizable bipropellant liquid propulsion system exposed to ethylene oxide
Brady, H. F.↗
Sterilizable liquid propulsion system Quarterly progress report, Oct. 1 - Dec. 31, 1967
Exposure of assembled and fueled bipropellant liquid rocket propulsion system to ethylene oxide and heat sterilization environments
Brady, H. F.↗
Sterilizable liquid propulsion system Quarterly progress report, 1 Apr. - 30 Jun. 1967
Hydrazine-based bipropellant liquid propulsion system exposed to ethylene oxide and heat sterilization environments
Brady, H. F.↗
Sterilization Assembly Development Laboratory, 3000 cu ft decontamination chamber. Physical parameters - Measurement plan, task 1.0
Ethylene oxide concentration, humidity, time, and temperature parameters for large decontamination chamber
Lantis, E. D.↗
TRW materials compatibility study with ethylene oxide/Freon 12 decontamination processes
Organic materials compatibility with ethylene oxide and Freon decontamination processes
Okumura, J. K.↗
Sterilization and post sterilization effects on electronic components and materials.
Decontamination effects of ethylene oxide and thermal sterilization influence on spacecraft polymeric materials and electronic components
Fewell, R. O.↗
Effects of sterilization on the energy-dissipating properties of balsa wood
Technical report on the effects of sterilization on the energy-dissipating properties of balsa wood is given. Sterilization by ethylene oxide plus heat enhances the average specific energy of balsa while plastic impregnation followed by irradiation-induced polymerization does not.
Sorkin, A. B.↗
Sterilizable liquid propulsion system Quarterly report, 1 Jan. - 31 Mar. 1969
Fueled bipropellant liquid propulsion system exposed to ethylene oxide and heat sterilization
Lukens, S. C.↗
Sterilizable Liquid Propulsion System, Part 1 Final Report, 5 Oct. 1966 - 31 Mar. 1968
Exposure of assembled and fueled bipropellant liquid propulsion system to ethylene oxide
Brady, F.↗
Process for preparing sterile solid propellants Patent
Using ethylene oxide in preparation of sterilized solid rocket propellants and encapsulating materials
Montgomery, L. C.↗
Processing for producing a sterilized instrument Patent
Ethylene oxide sterilization and encapsulating process for sterile preservation of instruments and solid propellants
Montgomery, L. C.↗
Sterilization of space hardware.
Discussion of various techniques of sterilization of space flight hardware using either destructive heating or the action of chemicals. Factors considered in the dry-heat destruction of microorganisms include the effects of microbial water content, temperature, the physicochemical properties of the microorganism and adjacent support, and nature of the surrounding gas atmosphere. Dry-heat destruction rates of microorganisms on the surface, between mated surface areas, or buried in the solid material of space vehicle hardware are reviewed, along with alternative dry-heat sterilization cycles, thermodynamic considerations, and considerations of final sterilization-process design. Discussed sterilization chemicals include ethylene oxide, formaldehyde, methyl bromide, dimethyl sulfoxide, peracetic acid, and beta-propiolactone.
Pflug, I. J.↗
Dispersion studies of the 22 GHz water vapor line shape. II - Instrumental correction.
Anomalies in the resonance dispersion of the pressure-broadened water vapor line at a frequency of 22.235 GHz are resolved. The pressure-scanning differential-refraction spectrometer gives rise to a signal enhancement as the line center moves within the width of the dispersion discriminator. Resonance absorption prevents the frequency of peak transmitted power from coinciding with the resonance condition of zero phase. The results reported for the 23.6 GHz rotational line of ethylene oxide show a Lorentzian molecular line shape.
Dillon, T. A.↗