Look Inside. UL B. 4th Edition, March 30, Complete Document. UL Standard for Safety Polymeric Materials – Long Term Property Evaluations. Includes. These revisions to ANSI/UL B are being issued to adopt the following requirements: Generic Thermal Index for Polyether Ether Ketone (PEEK). Generic . The Relative temperature index (RTI) is a characteristic parameter related to the thermal degradation of plastic materials. The RTI is part of the thermal-aging program of the UL B standard from.
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This usually means the test specimens are to be tested il to undergo some length of thermal aging prior to testing. To request a quote for this test or others Click Ul 746b.
UL Knowledge Services workshops are designed for and intended to serve individuals using and relying upon UL services. Refer to UL A and B for more details. You can unsubscribe anytime. Click here for terms and conditions The test ul 746b are the same as described in UL A for the specific property. There can be more than one Thermal Index for a material, each based on a different ul 746b property.
Specimens for testing are dependant upon the physical property or properties that are the test criteria. UL B suggests several methods for ul 746b the discrete data generated u, testing to the appropriate time that defines the thermal index temperature, but, in general, kinetics equations are employed to predict property maintenance over extended time at end use temperatures. Aging ovens Physical property test equipment and fixtures.
The most common minimum length of time for which the thermal aging is to be conducted is hours. The test samples are aged in hot air recirculating ovens. Charles, MO,http: Description The purpose of this one-day workshop is to increase your understanding of the temperature ratings assigned to a ul 746b material, and how those ratings are assigned.
This does not mean that all long term thermal aging projects can be completed within the minimum hour requirement; the length of time needed for completion is to be agreed upon by lu parties involved.
Target Audience Research and development staff Compliance engineers Product support staff Laboratory managers This course is currently provided as a Private workshop. The ul 746b you gain from this workshop will help facilitate the development ul 746b a thermal aging test program, helping you achieve the ul 746b you need as quickly as possible.
ul 746b A control material, with demonstrated end use performance, may be used to enhance the reliability of the data analysis. If you’re interested in taking this course, you can click the ‘I’m Interested’ button below.
UL Knowledge Solutions – Introduction to Long Term Thermal Aging (LTTA) – UL B Overview
Contact us if you ul 746b interested in this workshop. More common physical properties include tensile strength; flexural strength; tensile, izod or charpy impact; dielectric strength, and flammability. The preferred test sampling u is the Fixed Time Frame Ul 746b.
Critical physical properties, and either multiple uo or multiple times ul 746b minimum of 4 temperatures or times must first be defined to satisfy the intended purpose of the testing. Thermal Index is ul 746b important property for materials that will be used in applications that must withstand significant spans of time at elevated temperatures – for example, outdoor applications and electronic components and housings.
The other parts of this group are outside of the scope of testing conducted in our laboratories. UL Knowledge Services reserves the right to limit workshop attendance strictly to the ul 746b.
Emails are serviced by Constant Contact. There are no available classes for this course.
Relative temperature index
In addition, UL Ul 746b Services reserves the right to ul 746b, reschedule or cancel any workshop at any time. Workshops – Latin America. The purpose of this one-day workshop is to increase your understanding of the temperature ratings assigned to a polymeric material, and how those ratings are assigned. Standards can be obtained from appropriate standards authorities. Due to copyright restrictions, we are not able to provide copies of standards.
A series of lectures and classroom exercises have been designed to help you develop a thermal aging program for your material. Objectives Define what RTI is and is not Describe how RTI values are utilized in the ul 746b of a plastic in an end-product investigation Describe the process for selecting a control material Determine 746v number of samples needed for an LTTA investigation Explain how aging temperatures are selected Uo describe the data analysis mechanism.
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