Aug. 1, 2012 Understand the differences between Listed, Classified and Verified products.In a page on its website, Underwriters Laboratories (UL) explains the appearance and significance of its many marks. Included on that page, and potentially of particular interest to professionals in the struc...
Division 2, Class I, Zone 2, Class II, Division 2, Class III, Division 1, Class III, Division 2, Zone 21 and Zone 22 Hazardous (Classified)
Our Listed Mark appears on furnaces and heaters, fuses, electrical panel boards, fire extinguishers and thousands of other products. The UL Classified Mark commonly appears on products that have been evaluated for a specific hazard or for performance under specific conditions. ...
UL classified For different types of UL services, the UL Mark can be divided into three categories, the LISTED listing mark, the Classified classification mark, and the Recognize part certification mark. UL’s services are based not only on the US UL standard but also on the Canadian Standard...
英语翻译To:UL Shenzhen ICAttention:Gentlemen/Ladies:Due to the inactivity in the manufacturing of all (Listed)(Classified) products manufactured at Under the following prodcuct Categories:Category CCN File/Vol.We request that this factory be plac
UL Listed –has been tested and certified to meet OSHA safety standards UL Classified –UL 969 certified UL Certified –also known as “Enhanced Mark Labels” UL Label Considerations To establish UL certification, manufactures must submit label products for testing and evaluation and label construction...
major specificity determinants of the ubiquitin system by facilitating the transfer of ubiquitin to lysine residues of the target proteins. The human genome encodes more than 600 putative E3 ligases [6], which generate the diversity in the ubiquitin system. E3 ligases are classified into two main ...
There are exceptions to the "UL Recognized" categorization for power supplies – lab supplies andexternal adaptersare regarded as stand-alone products and therefore are classified as "UL Listed." This classification can make life easier for system designers who can specify an external "Listed" part...
UL Classified: The UL Classified stamp means equipment was tested only for a specific purpose, and the testing and hazard conditions are limited. When machinery or equipment is classified by UL, it means the equipment met specific requirements under a single test. Additional UL Ratings UL also ...
this means that it is a component of a product. The component itself has been tested but has not been placed in a finished product. Some examples of products that would be UL Recognized include power supplies and circuit boards. Finally, products that are UL Classified have been certified und...