ASTM E Test Method. NuSil Technology LLC. Carpinteria, CA. +1 () +1 () Fax [email protected] Outgassing data (ASTM Specification E). Nelco / Neltec. Product. Total Mass Loss. TML (1% max). Collected Volatiles. Condensable Material. CVCM (%. Outgassing, EMI Silicones, and ASTM E – Outgassing in high-vacuum environments can disrupt electronic equipment and optical.
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Samples tested at other temperatures may be compared only with other asym which were tested at that same temperature. To obtain these values, multiple samples of this post-conditioned, nickel-graphite filled silicone were tested. For example, materials that release high levels of airborne molecular contaminants AMCs can degrade the performance of sensors and circuit boards in satellites. In addition to measuring outgassing levels, our experts can provide testing and data about residual gas analysisthermal properties and other aerospace properties.
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Each specimen must be weighed within 2 min after opening the vial to minimize the loss or absorption of water vapor while exposed to an uncontrolled humidity environment.
Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Terms and Conditions of Sale Contact.
For engineers who need low outgassing compounds with the right balance of properties, post-conditioned SSP is an excellent choice. After a hour outgas exposure, the specimens and the condensing plates are weighed to determine mass loss, and the percentage of the volatile effluents that were collected during testing.
The fill material for SSP also satm less than silver-aluminum, silver-copper, or silver-glass. Because outer space is a vacuum, engineers must also account for how released gases can condense on camera lenses. The user may designate additional tests to qualify materials for a specific application. Through optional post-conditioning, SSP can supply this nickel-graphite EMI elastomer in a low-outgassing grade upon request.
Condensation from this process can collect on sensors, electronics and navigational equipment, causing damage to mission-critical equipment. It is sufficient that the pressure be low enough that the mean free path of gas molecules be long in comparison to chamber dimensions. With the ability to cause damage and failure to mission-critical components, outgassing is an important characteristic to be considered in material selection.
Link to Active This link will always route to the current Active version of the standard. With materials testing laboratories span from coast to e5595 in the US, Element’s clients enjoy access to our global platform of testing capacity, capabilities and experts. Make an inquiry today.
Environmental – Pacific Testing Laboratories
Facebook Twitter Email Other. Two parameters are measured: Ast, include polymer potting compounds, foams, elastomers, films, tapes, insulations, shrink tubings, adhesives, coatings, fabrics, tie cords, and lubricants.
ASTM E defines testing procedures for evaluating changes in material mass caused by outgassing in high-vacuum environments. Historically, TML of 1. Engaged in testing virtually every material, component and system on commercial aircraft, Element’s deliverable is mission critical, certainty. Therefore, subsequent functional, developmental, and qualification tests should be used, as necessary, to ensure that the material’s performance is satisfactory.
Outgassing, EMI Silicones, and ASTM E
It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. Element can provide you with critically important data on your product or part’s performance in response to typical or extreme environmental stresses and conditions. The overall mass loss can be classified into noncondensables and condensables. Ready to request a quote? The vials must be capped before removal from the conditioning chamber.
Dark gray in color, SSP comes in continuous rolls and can be supplied in thicknesses from 0. The independent testing agency also determined that the average WVR was 0.
Our deliverable is certainty – high quality data, test reports and certificates that you can absolutely rely on when making decisions about your materials and compliance.
Our ASTM E testing services are critical to the material selection process for high vacuum applications.
Silicones That Work
Historical Version s – view previous versions of standard. Previous Post Next Post. In medical environments such as hospitals, AMCs can contaminate sterile surfaces.