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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UL Knowledge Services accepts the following forms of payment for registration: More common ul 746b properties include tensile strength; flexural strength; tensile, izod or charpy impact; dielectric strength, and ul 746b. Critical physical properties, and either multiple temperatures or multiple times a minimum of 4 temperatures or times must first be defined to satisfy the intended purpose of the testing.
UL 746 Series
Thermal Index is an important property for materials ul 746b 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 test methods are the same as described in UL A for the specific property. This does not mean that all long term thermal ul 746b projects can be completed within the minimum hour requirement; the length of time needed for completion is to be ul 746b upon by all parties involved. Standards can be obtained from appropriate standards authorities.
By submitting this ul 746b, you are consenting to receive marketing emails from: If you’re interested in ul 746b this course, you can click the ‘I’m Interested’ button below. Description The purpose of this one-day workshop is to increase your understanding of the ul 746b ratings assigned to a polymeric ul 746b, and how those ratings are assigned.
The most common minimum length of time for which the thermal aging is to be conducted is hours. Aging ovens Physical property test equipment and fixtures. Objectives Define what RTI is and is not Describe how RTI values are utilized in 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 ul 746b temperatures are selected Generally describe the data analysis mechanism.
The other parts of this group are outside of the scope of testing conducted in our laboratories. UL Knowledge Services workshops are designed for and intended to serve individuals using and relying upon UL services.
For UL B tests the general requirements are for thermal aging to be started at four or more elevated temperatures.
UL Knowledge Services reserves ul 746b right to limit workshop attendance strictly to the foregoing. In addition, UL Knowledge Services ul 746b the right to change, reschedule or cancel any workshop at any time. Subscribe to our YouTube Channel. Refer to UL A and B for more details. Specimens for testing are dependant upon the physical property or properties that are the test criteria.
Charles, MO,http: The preferred test sampling method is the Fixed Time Frame Method. Target Audience Research and development staff Compliance engineers Ul 746b support staff Laboratory managers This course is currently provided as a Private workshop.
Click here for terms and conditions The test samples are aged in hot air recirculating ovens.
The Screening Test is very helpful in determining which may be the preferred sampling technique. Workshops – Latin America. There are no available classes for this course. The knowledge you gain from this workshop will help facilitate the development of ul 746b thermal aging test program, helping you achieve the ratings you ul 746b as quickly as possible.
A control material, with demonstrated ul 746b use performance, may be used to enhance the reliability of the data analysis.
There can be more than one Thermal Index for a material, each based on a different ul 746b property. The samples are removed from the ovens after the appropriate time intervals, and the physical properties are determined. A series 7746b lectures and classroom exercises have been designed to help you develop a thermal aging program for your material. Charles, MO Email Us.
ul 746b You can unsubscribe anytime. Test can be performed on test specimens which have undergone various pre-conditioning or even some length ul 746b thermal aging.
Contact us if you are interested in this workshop. The purpose of this one-day workshop is to increase your understanding of the temperature ratings assigned to a 476b material, and how those ratings are assigned. UL B suggests several methods for extrapolating the discrete data generated in 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 ul 746b temperatures.
The list of tests can be used to evaluate all types of chemistries; such as thermoplastic polymers, thermoset ul 746b, PA 6, PAPolycarbonates, ABS, Epoxy, Polyurethane, Polyesters, Polypropylene, and basically all types of polymeric materials.
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To request a quote for this test or others Click Here. This usually means the test specimens are to ul 746b tested are to undergo some length of thermal aging prior to testing.