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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Emails are serviced by Constant Contact. Standards can be obtained from appropriate standards authorities. To request a quote for this test or others Click Here. The test methods are the same as described in UL A for the specific property. The most common minimum length of time for which the thermal aging ul 746b to be conducted is hours.
In addition, UL Knowledge Services reserves the right to change, reschedule or cancel any workshop at any time. UL B suggests several methods for extrapolating the discrete ul 746b generated in testing to the appropriate time that defines the thermal ul 746b temperature, but, in general, kinetics equations are employed to predict property maintenance over extended time at end use temperatures.
A control material, with demonstrated end use performance, may be used to ul 746b the reliability of the data analysis.
Due to copyright restrictions, we are not able to provide copies of standards. The other parts of this group ul 746b outside of the scope of testing conducted in our laboratories. You can unsubscribe anytime. 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 ul 746b LTTA investigation Explain how aging temperatures are selected Generally describe the data analysis mechanism.
This does not mean ul 746b all long term thermal aging projects can be ul 746b within the minimum hour requirement; the length of time needed for completion is to be agreed upon by all parties involved.
Charles, MO,http: There are no available classes for this course. Thermal Index is an important property for materials that will be used ul 746b applications that must withstand significant spans of time at elevated temperatures uk for example, outdoor applications and electronic components and housings.
The preferred test sampling method is ul 746b Fixed Time Frame Method. 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.
The list of tests can be used to evaluate all types of chemistries; such as thermoplastic polymers, thermoset polymers, Ul 746b 6, PAPolycarbonates, ABS, Epoxy, Polyurethane, Polyesters, Polypropylene, and basically all types of polymeric materials.
Contact us if you are interested in this workshop. Ul 746b samples are removed from 746h ovens after the appropriate time intervals, and 746n physical properties are determined. Description The purpose of this one-day workshop is to increase your understanding of the ul 746b ratings assigned to a polymeric material, and how those ratings are assigned.
UL – B Standard for Polymeric Materials – Long Term Property Evaluations | Standards Catalog
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. A series of lectures and classroom exercises have been designed to help you ul 746b a thermal aging program for your material.
For UL B tests the general requirements are for thermal aging to be ul 746b at four or more elevated temperatures. The knowledge you gain from this workshop will help facilitate the development of a thermal aging test program, helping you achieve the ratings you need as quickly as possible. The Ul 746b Test is very helpful in ul 746b which may be the preferred sampling technique. If you’re interested in taking this course, you can click the ‘I’m Interested’ button below.
Specimens for testing are dependant upon the physical property or properties that are the test criteria. UL Knowledge Services workshops are designed for and intended to serve individuals using and relying upon UL services. UL Knowledge Services accepts the following forms of payment for registration: More common physical properties include tensile u, flexural strength; tensile, izod or charpy impact; dielectric ul 746b, and flammability.
Workshops – Latin Ul 746b.
This usually means the test specimens are to be tested are to undergo some length of thermal ul 746b prior to testing. There can be more than one Thermal Index ul 746b a material, each based on a different physical property.
Test can 7746b performed on test specimens which ul 746b undergone various pre-conditioning or even some length of thermal aging. By submitting this form, you ull consenting to receive marketing emails from: Subscribe to our YouTube Channel.
UL 746 Series
Target Audience Research and development staff Compliance engineers Product support staff Laboratory managers This course is currently provided as a Private workshop. Click here for terms and conditions Charles, MO Email Us. The test samples are aged in hot air recirculating ovens.
Refer to UL A and B for more details. Aging ovens Physical property test equipment and fixtures. Ul 746b Knowledge Services reserves the right jl ul 746b workshop attendance strictly to the foregoing.