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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Description 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.
Due to copyright restrictions, we are not able to provide copies of standards. By submitting this form, you are consenting to receive marketing emails from: Uul Knowledge Services reserves the right to limit workshop attendance strictly to the foregoing. There can be more than one Thermal Index for a material, each based ul 746b a different physical property. Workshops – Latin Ul 746b.
The ul 746b are removed from the ovens after the appropriate time intervals, and the physical properties are determined.
Contact us if you are interested in this workshop. Target Audience Research and development staff Compliance engineers Product support staff Laboratory ul 746b This course is currently provided as a Private workshop.
UL – B Standard for Polymeric Materials – Long Term Property Evaluations | Standards Catalog
In addition, UL Knowledge Services reserves the right to change, reschedule or cancel any workshop at any time. Objectives Define what RTI is and is not Describe how RTI values are utilized ul 746b the selection of a plastic in an end-product investigation Describe the process for selecting a control material Determine the number of samples needed for an LTTA investigation Explain how aging temperatures ul 746b selected Generally describe the data analysis mechanism.
To request a quote ul 746b this test or others Click Here. Emails are serviced by Constant Contact. UL Knowledge Services kl are designed for and intended to serve individuals using and relying upon UL services.
UL Thermal Indexing UL B
Subscribe to our Ul 746b Channel. Standards can be obtained from appropriate standards authorities. The Screening Test is very helpful in determining which may be the preferred sampling technique.
The knowledge you gain from this workshop will help facilitate ul 746b development of a thermal aging test program, helping you achieve the ratings you need as quickly as possible.
This does not mean that all long ul 746b thermal aging projects can be completed within the minimum hour requirement; the length of time needed for completion is to be agreed ul 746b by all parties involved. A control material, with demonstrated end use performance, may be used up enhance the reliability of the data analysis. The test samples are aged in hot air recirculating ovens.
Thermal Index is an 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. More common physical properties include tensile strength; flexural strength; tensile, izod or charpy impact; dielectric strength, and flammability. Charles, MO Ul 746b Us.
If you’re interested in taking this course, you can click the ‘I’m Interested’ button below. Specimens for testing ul 746b dependant upon the physical property or properties that are the test criteria.
There are no available classes for this course. The test ul 746b are the same as described in UL A for the specific property. Refer to Ul 746b A and B for more details. Critical physical properties, and either multiple temperatures or multiple times a minimum of 4 temperatures 746n times must first be defined to satisfy the intended purpose of the testing.
UL 746 Series
This usually means the test specimens are to be tested are to undergo some length of thermal aging prior to testing. Ul 746b can be performed on test specimens which have undergone various pre-conditioning or even some length of thermal ul 746b. For UL B tests the general requirements are for thermal aging to be started at four or more elevated temperatures.
The other parts of this group are outside of the scope of testing conducted in our u. The preferred test sampling method is the Fixed Time Frame Method.
UL B suggests several methods for extrapolating uo discrete data generated in testing to the appropriate time ul 746b defines the thermal index temperature, but, in general, kinetics equations are employed to predict property maintenance over extended time ul 746b end use temperatures. A series of lectures and classroom exercises have been designed to u you develop a thermal aging program for your material.
You can unsubscribe anytime. The list of tests ul 746b be used to evaluate all types of chemistries; such as thermoplastic polymers, thermoset polymers, PA 6, PAPolycarbonates, ABS, Epoxy, Polyurethane, Polyesters, Polypropylene, and basically all types of polymeric materials. The most common minimum length of time for which the thermal aging is to ul 746b conducted is hours. 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.
Aging ovens Physical ul 746b test equipment and fixtures. UL Knowledge Services accepts the following forms of payment for registration: Charles, MO,http: Click here for terms and conditions