UL certification by the global testing and certification body, the standards development organization of the United States UL Co., Ltd. founded [1]. Since its founding in 1894, UL has published nearly 1,800 safety, quality and sustainability standards, more than 70% of which have become national standards in the United States, and UL is also the development agency for national standards in Canada.
certification significance
the significance of
UL certification mark to enterprises:
1. The entire US market attaches great importance to product safety; when consumers and buyers purchase products, they will choose products with UL certification marks.
2. UL has a history of more than 100 years. The image of safety is deeply rooted in consumers and the government. If you do not sell products directly to consumers, middlemen will also require products to have UL certification marks to make products sell well.
3, American consumers and buyers have more confidence in the company's products.
4. More than 40,000 federal, state, county and municipal governments across the United States recognize UL certification marks.
Applicant submits relevant company and product information
Written Application: You should request UL in writing to test your company's products.
Company Information: Provide detailed and accurate name, address, contact person, postal code, telephone and fax of the following units in Chinese and English.
(a). Application company: the company that applies for product testing and is responsible for all engineering service costs.
(B). Listed Companies: Companies whose names are listed in various product catalogs published by UL Corporation
©Production plant: the manufacturer and producer of the product.
Product Information: Product information should be provided in English.
(a). Product Name: Provide the full name of the product.
(B). Product model: list all the product models, varieties or classification numbers that need to be tested in detail.
©The intended use of the product: for example: home, office, factory, coal mine, ship, etc.
(d). Parts list: list the parts and models (classification numbers), ratings, and names of manufacturers that make up the product in detail. For insulation materials, please provide the name of the raw material, for example: GE Polycarbonate,Lexan Type 104. When the parts have obtained UL certification or approval, please prove the specific model of the parts and indicate their UL file number (e). Electrical properties: for electrical and electronic products. Provide electrical schematic diagram (wiring diagram), electrical performance table.
(f). Structure diagram: For most products, the structure diagram or explosion diagram of the product, ingredient list, etc. shall be provided.
(g). Photos of the product, instructions for use, safety and other items or installation instructions.
UL Services
Column name (LISTED)
Generally speaking, the listing only applies to complete products and various devices and devices replaced or installed by qualified personnel on site, and various products that belong to UL's listed services, including household appliances, medical equipment, computers, commercial equipment, and various electrical products used in buildings. Such as power distribution systems, fuses, wires, switches and other electrical components. Products listed by UL can usually be marked on each product with UL's listing mark and the usage of the parallel name mark.
Approval (Recognized)
accreditation service is an item in UL service, and the products identified can only be used as components and raw materials on UL listing, classification or other approved products. The approved product is not structurally complete, or has certain restrictions on its use to ensure the expected safety performance. In most cases, the tracking service for approved products falls into the R category. Approved products belonging to Class L are electronic wire (AVLV2), processed wire (ZKLU2), wire harness (ZPFW2), aluminum wire (DVVR2), and metal flexible tube (DXUZ2). Approved products are required to bear the approval mark.
Grading (Classification)
the
classification service only evaluates the specific hazards of the product, or evaluates products that implement standards other than UL standards (including internationally recognized standards, such as IEC and ISO standards, etc.). Generally speaking, most graded products are not products used by consumers, but products used by industry or commerce. The grading mark in the UL mark indicates that the product has certain restrictions and specified ranges when it is identified by UL. For example, in the case of a chemical such as an industrially used solvent, only the range of a fire that may occur when it reaches the ignition temperature is evaluated. The grading service of some products is the same as the listing service, but generally only one or several aspects of the product are evaluated. For example, in the United States, medical X-ray diagnostic equipment must comply with the laws of the United States and the regulations on radiation emission and beam current accuracy. However, because UL only regards X-ray as a graded product, it only evaluates its mechanical properties, electrical properties and other non-radiation properties.
Multiple listing, multiple endorsements or multiple grading services
When a UL applicant obtains the above listing, approval or classification service, its products need to be produced in the name of another company to meet the needs of sales, he can apply for multiple listing, multiple approval or multiple classification service. In this case, the manufacturer who obtains the listing, approval or classification is allowed to use the name of another company in the product list, but the product is except the company code, product code or other characteristics that UL considers acceptable, must be consistent with the original listed, approved or graded products.
"AL" listing, recognition or classification service
If the UL applicant does not want to obtain listing, recognition or grading services in the name of his company, he can apply for listing, recognition or grading in the name of another trade name (usually a retailer or wholesaler), that is, "AL" listing, recognition or grading services. It differs from multiple listing, multiple recognition or multiple rating services in that its applicant is not a listed person.
