UL Certification
UL is the United States Underwriters Laboratories (Underwriter Laboratories Inc.) abbreviation. UL Safety Testing Institute is the United States is the most authoritative, but also in the world engaged in safety testing and identification of the larger civil institutions. It is an independent, for-profit, for the public **** safety test professional organizations. It uses scientific testing methods to determine the study of various materials, devices, products, equipment, buildings, etc. on life, property and the degree of harm; to determine, write, issue the corresponding standards and help reduce and prevent the loss of life and property by the loss of information, as well as to carry out factual research business. UL certification in the United States is a non-compulsory certification, mainly product safety performance testing and certification, the scope of its certification does not include the product EPA certification. The scope of certification does not include the EMC (electromagnetic compatibility) characteristics of the product.
In short, it is mainly engaged in product safety certification and business safety certificate business, its ultimate goal is to get for the market with a considerable level of security of goods, to ensure the safety of personal health and property to contribute. Product safety certification as an effective means of eliminating technical barriers to international trade, UL to promote the development of international trade also plays a positive role.
Marking Meaning
UL Listing Mark
This is one of the most commonly used UL marks. If this mark is affixed to a product, it means that a sample of that product meets UL's safety requirements. These requirements are primarily UL's own published safety standards. This type of marking is typically seen on the following categories of products: appliances, calculator equipment, stoves and heaters, fuses, power strips, smoke and carbon monoxide detectors, fire extinguishers and sprinkler systems, personal flotation devices such as life jackets and life preservers, bullet-proof glass and thousands of other products.
The C-UL Listing Mark
This mark applies to products sold in the Canadian marketplace. Products bearing this mark are evaluated against Canadian safety requirements. Canadian safety requirements may differ from U.S. safety requirements. The mark can be found on the following types of equipment: electrical and calculator equipment, vending machines, home burglar alarm systems, lighting fixtures, and many other types of products.
C-UL US Listing Mark
UL introduced this new listing mark in early 1998. It indicates compliance with both U.S. and Canadian requirements. The Canada/U.S. Marking is optional, and UL encourages manufacturers whose products are certified in both the U.S. and Canada to use this new combined Marking, but manufacturers have the option of continuing to use either the U.S.-only or Canada-only UL Marking.
The Classification Mark
This mark appears on products that have been evaluated by UL for certain specialized attributes. Certain specialized attributes are those that apply to a limited range of hazards, or to use under limited or specialized conditions. Typically, products classified by UL are general purpose construction materials and industrial equipment. Examples of the types of equipment classified by UL are diving suits, fire doors, firefighter protection and industrial trucks.
C-UL Classification Mark
This classification mark applies to products sold in the Canadian market. It indicates that UL has evaluated the product for certain hazards or characteristics in accordance with Canadian standards. Examples of C-UL rated products include air filters, fire stops, and certain types of roofing systems.
Recognized Part Marks and Canadian Recognized Part Marks
The average consumer seldom sees these marks because they are used on components, which are parts of larger products or systems. These parts do not directly constitute a complete product on their own, or their use is limited. Component recognition marks can be found on a wide range of products, including some switches, power supplies, printed wiring boards, some types of industrial control equipment, and thousands of other products. Products intended for sale in the Canadian market are marked with an approved part marking that carries a "C" letter.
Recognized Part Mark for Canada and the U.S.
This is a new UL Recognized Part Mark, which became effective April 1, 1998, and can be used on products manufactured by UL both in Canada and the U.S.
Recognized Part Mark for Canada and the United States. It can be used for parts that are certified by UL to both Canadian and U.S. requirements. Originally, UL did not intend to introduce a combined Recognized Component Mark, but introduced the new mark because of the preference of UL's Certificate of Conformity users whose products are sold in both Canada and the U.S. for the Canada/U.S. Listing and Grading Mark.
International "EMC-Marking"
Products bearing this international "EMC-Marking" meet the electromagnetic compatibility requirements of Europe, the United States, Japan, Australia, or any combination of these countries and regions. In the U.S., certain types of products cannot be sold without being certified as meeting U.S. EMC requirements. Products subject to EMC testing include medical and dental equipment, calculators, microwave ovens, televisions, radios, transmitters, and wireless control equipment.
EPH Product Mark
This UL Mark appears on products that have been evaluated under the Environmental and Public ****Hygiene Standards. A "graded version" of this Mark is used for products that meet ANSI/NSF standards as well as other food hygiene scopes and requirements. Examples of such products are: food service equipment, meat and poultry plant equipment, and drinking water additives. The "listed" version of this mark is generally used for products that meet UL's own EPH safety standards.
The Blue Sanitation Mark
It is optional and supplements the Classification Mark.
Field Evaluation Product Marking
The Field Evaluation Product Marking applies to products that have been thoroughly evaluated by UL at the site of use, rather than at UL or the manufacturer's laboratory. If a product has been substantially modified since it was manufactured, or if there are no third-party markings on the product, a building owner, regulatory authority, or any other person directly involved with the product may request that UL conduct on-site testing of that specific product. Products that meet the relevant safety requirements can be labeled with this non-removable field evaluation product marking.
Management System Registration Mark
This UL registered company mark is not visible on the product. It indicates that a facility has been evaluated by UL to the Management Systems Standard. By having UL evaluate its management system program, it can be used to enhance a company's image and become an integral part of its marketing strategy. The standards UL uses in this regard are: the ISO 9000 series of quality assurance standards; QS-9000 and TE Supplemental Standards, which are quality standards developed by the Big Three U.S. automobile manufacturers for their suppliers; ISO 14001, which covers environmental management systems; AS9000, the aerospace standard; and ISO 9000, the environmental management system standard. standards; AS9000, the Aerospace Quality Management System; TL9000, the Telecommunications Quality Management System; and SA8000, the Social Accountability Management System.
Marine Marking
The UL Marine Marking is found on products that are intended for marine use. Products bearing this Mark have been evaluated in accordance with UL's published Marine Safety Standards and other applicable standards and codes. Damage to pleasure craft or yachts that can occur when the product is exposed to certain harsh marine environments, such as vibration, shock, ignition protection, water intrusion, and corrosion caused by salt water. The requirements of UL's published marine safety standards and other applicable standards and codes referred to above address these damages. Types of equipment suitable for the UL Marine Mark include alternators, batteries/chargers/energy changers, navigation lights, fuel tanks, filters, and pumps.