Environmental testing pacific testing laboratories. Guide of space grade requirements for electrical connectors melanie ott swales aerospace goddard space flight center table of contents introduction 1. Outgassing and permeation from orings often constrain the. Each nasa technical standard is assigned to a technical discipline. Nasa s technology portfolio management system techport is a single, comprehensive resource for locating detailed information about nasa funded technologies. If used for splicing, vacuum bake after and validate it for performance. Aeronautics educator guide pdf 15sep1999 3m aeronautics. Outgassing data for selecting spacecraft materials system nasa. Search search data catalog about developer resources.
Those technologies cover a broad range of areas, such as propulsion, nanotechnology, robotics, and human health. When complete, the databases will contain information on materials outgassing obtained using the astme1559 standard, and flight observations of mass accumulations. Outgassing data for selecting spacecraft materials online. Outgassing data for selecting spacecraft materials. Satellite contamination and materials outgassing effects. Download our free guide to learn more about outgassing testing and all relevant parameters. Some customers specify deleting the seal, some opt for a bakeout, and some customers specify thermal vacuum outgassing. Outgassing data, derived from tests at 398 k 125 c for 24 hours in vacuum as per astm e 59577, have been compiled for numerous materials for spacecraft use. And while there are cases when nothing but a low outgassing product will do, the truth is that many socalled generic adhesives inherently have low outgassing levels.
Nasa outgassing compliant nasa esa outgassing qualified products test procedures. Outgassing data for spacecraft materials, nasa tn d7362, september 1973. This nasa technical standard establishes requirements for evaluation, testing, and selection of materials that are intended for use in space vehicles and associated ground support equipment gse. Materials and processes data for use in space on launchers, satellites, payloads.
End users will typically test every batch of material they receive and reject any that do no pass the requirements. Developed by nasa to screen low outgassing materials for use in space, the test determines the volatile content of material samples placed in a heated vacuum chamber. Pdf material total mass loss in vacuum obtained from various. This compilation of outgassing data of materials intended for spacecraft use were. Once established, these databases will be available to the entire community and will provide a valuable source of material outgassing information. An equation that describes material outgassing for. The industry standard test for measuring outgassing in adhesives and other materials is astm e595. Outgassing test facility brings new materials into space industry industrial productivity. Data for a number of parker chomerics conductive elastomers, based on astm e595 testing done by nasa goddard spaceflight center, is presented below. A failure analysis shall be performed on each connector having failed during qualification. Nasas materials engineers use the results of the test as an initial screening test to determine the risk of contamination from outgassing. These requirements may also apply to facilities used during assembly, test, and flight operations when imposed contractually to ensure safety of. Astm e595 15 standard test method for total mass loss. Outgassing, emi silicones, and astm e59507 outgassing in highvacuum environments can disrupt electronic equipment and optical devices.
Outgassing test facility brings new materials into space industry. For short term use, the library will attempt to borrow a hard copy version of the book from another library through interlibrary loan ill. Outgassing is a challenge to creating and maintaining clean highvacuum environments. Developed by nasa to screen low outgassing materials for use in space, the test determines the volatile content of material samples placed in a heated vacuum. Outgassing data for selecting spacecraft materials ntrs nasa. Commercial space transportation document library nasa.
Learn more about this api, its documentation and alternatives available on rapidapi. Gregory langley research center lungley station, hampton. Indeed, the rigors of space exploration have often been the driving force behind many new technological. Nasa ref pub 1124 outgassing data for spacecraft materials rev.
Pdf outgassing effect on spacecraft structure materials. Researchpublisher partnershipsdata partnershipsapi and open corpus. Nasa materials and processes technical information system. The dataset is a compilation of information obtained from the goddard space flight center, the stanford research institute, and the jet propulsion laboratory. This paper broadly addresses the topic of silicone outgassing and includes a survey of. Pdf library of nasa educational publications aeronautics educators guide.
Get the latest updates on nasa missions, watch nasa tv live, and learn about our quest to reveal the unknown and benefit all humankind. Outgassing, emi silicones, and astm e59507 specialty. Tga were used in the testing of a graphiteepoxy grep continue reading. You can find useful information on nasa s technologies in techport, including descriptions of technologies, images, and. The actual test nasa runs on candidate materials is very expensive and time consuming. Outgassing of adhesives and coatings can cause problems in optics used in space applications. But a team of nasa engineers has created a new way to protect those instruments from its ill effects.
Check out the nasa outgassing db api on the rapidapi api directory. Jan 28, 2020 each nasa technical standard is assigned to a technical discipline. Materials and processes technical information system. Outgassing test facility brings new materials into space. The data presented are the total mass loss tml and the collected volatile condensable materials cvcm. These selection arlon products meet nasa outgassing requirements application notes technology enabling innovation. A compilation of low outgassing polymeric materials normally recommended for gsfc cognizant spacecraft introduction the new sophisticated series of goddard cognizant earth observing satellites together with the anticipated long lived communication, meteorological and explorer types have spawned new concepts in electrooptics instrumentation. The interfacial seal on microd receptacles does not meet nasa outgassing requirements unless it is baked or thermal vacuum outgassed. Actual test data, or test data contained in nasa reference publication 1124, shall be submitted to the qualifying activity.
The normal specification limits or guidelines on outgassing for nasa applications are 1% tml max. Nasa technical standards nasa technical standards system. Influence of spacecraft outgassing on the exploration of tenuous. Modify existing or construct new code 546 facilities to meet program test requirements. Please select the respective link to access that disciplines standards. Database for metallic and nonmetallic materials properties.
News home technical info pdf library tech support pdfs. The library maintains a list of book purchases suggested for long term library use, in the event that funding becomes available for this purpose. For almost half a century, the lab has been building a database on the performance of materials and components. Accreted organics contribute significantly to titans atmosphere. En0070226 cicoil outgassed cables meet outgassing requirements. A study on the physical and electrical characterizations of polymer aluminum pa capacitors. These plans generally describe methods for controlling contaminates and verifying that they have been prevented or abated such that the hardware will meet performance requirements. Whats more, most bonding, potting, encapsulation and sealing applications dont need to meet a defined outgassing specification. Nasa and esa maintain lists of materials with low outgassing properties suitable for use in spacecraft, as outgassing products can condense onto optical elements, thermal radiators, or solar cells and obscure them. These requirements nasa outlines include having a total mass lost tml of less than 1% and collected volatile condensable materials cvcm of less than 0. As a result, silicone is often excluded from designs. Nasa technical note m h 04 p n z c 4 r 4 z experimental study in vacuum of the rateofrise outgassing measurement technique by geruld l.
Outgassing the physical process that creates that ohsoalluring new car smell isnt healthy for humans and, as it turns out, not particularly wholesome for sensitive satellite instruments, either. Find tantalum capacitor outgassing related suppliers, manufacturers, products and specifications on globalspec a trusted source of tantalum capacitor outgassing information. This testing ensures that these materials have been screened by nasa and selected for space applications. To pass, a materials average total mass loss coming out of the vacuum must be less than 1 percent, and the condensable volatile material outgassed cannot exceed 0. Dec 07, 2005 nasa ref pub 1124 outgassing data for spacecraft materials rev. The goal of maptis is to provide a singlepoint source for materials properties for nasa and nasa associated contractors and organizations. Save time and cost with modification codes for space grade. Reliability and other spacerelated characterizations of. Heslin, may 1977, goddard space flight center, greenbelt, maryland. Nasa esa screening outgassing properties and requirements specification information spacegrade interconnect manufacturing and test capability outgassing and inspection modification codes g lenair space mechanisms and related interconnect solutions are ideally designed for deployment of cubesat and nanosat equipment.
Nasas outgassing db api is a dataset of materials intended for spacecraft use. For further information about the outgassing data, please contact jeremy knipple. Sign up today for free to start connecting to the nasa outgassing db api and s more. On page 12 following equation a8, the page should read. Nasa approval of cicoil flexxsil material cicoil flat.
Outgassing data, derived from tests at 398 k 125 c for 24 hours in a vacuum as per astm e 59584, have been compiled for numerous materials for spacecraft use. Outgassing and permeation are often merged in casual vacuum discussions the devil is in the details. Outgassing data for selecting spacecraft materials system. Material total mass loss in vacuum obtained from various outgassing systems. While outgassing is a valid concern for a number of sensitive applications, there is a broad lack of understanding about silicone outgassing, as well as much misperception and confusion. Outgassing data for selecting spacecraft materials vacseal inc.
As a nasa and jplapproved laboratory for testing of printed circuit board materials, ptl has also received continual laboratory suitability approval only laboratory for astm e595 testing from the defense logistics agency dla land and maritime department of defense, united states of america. From these parametric plots, the quasisteady pressure in a volume containing outgassing materials can be estimated. Cicoil flexxsil outgassing performance cicoil flat cable. For example, materials that release high levels of airborne molecular contaminants amcs can degrade the performance of sensors and circuit boards in satellites. Arlon products meet nasa outgassing requirements rancho cucamonga, ca arlon recently updated data on their high performance laminate products that have successfully completed nasa testing for outgassing and total condensable volatiles according to astm e59593 standard method for total. Welcome to the materials and processes technical information system maptis web site. Space grade requirements for electrical connectors nasa. Fiber optic epoxy outgassing study for space flight.