1. The applicant submits relevant company and product information.
Written application: You should ask UL Company to conduct a written test on your product.
Company information: Provide detailed and accurate Chinese and English names, addresses, contacts, postal codes, telephone numbers and fax numbers of the following units.
(a) Applicant company: the company that applies for product testing and is responsible for all engineering service fees.
(b) Listed companies: companies whose names are listed in various product catalogues published by UL Company.
(c) Manufacturers: manufacturers and producers of products.
Product information: Product information should be provided in English.
(a) Product name: Provide the full name of the product.
(b) Product model: list all product models, varieties or classification numbers that need to be tested in detail.
(c) The intended use of the product: for example, home, office, factory, coal mine, ship, etc.
(d) Parts list: A detailed list of parts and models (classification number), grades and manufacturers' names of products. For insulation materials, please provide the name of raw materials, for example: GE polycarbonate, Lexan type 104. When the parts are certified or recognized by UL, please prove the specific model of the parts and indicate the UL document number.
(e) Electrical performance: electronic and electrical products. Provide electrical schematic diagram (circuit diagram) and electrical performance table.
(f) Structural drawing: For most products, it is necessary to provide structural drawing or explosion drawing, composition table, etc.
(g) Product photos, instructions for use, safety and other items or installation instructions.
2. Product testing
Product testing is generally carried out in UL laboratory in the United States, and UL can also accept the audit data of third-party testing. The experimental samples will be returned or destroyed according to your requirements. If the product test results meet the requirements of UL standards, UL will issue qualified test reports and follow-up service procedures. The test report will detail the test situation, the indicators achieved by the sample, the product structure and the safety signs applicable to the product. Product description and UL regional inspector's instructions are included in the detailed rules of tracking service. A copy of the test report will be sent to the applicant company, and a copy of the tracking service details will be sent to each production plant.
3. the applicant is authorized to use the UL trademark.
The UL regional inspector in China will contact the production factory for the first factory inspection (initial production inspection). IPI)。 The inspector will check the storage of your products and their parts in the production line and warehouse to confirm whether the product structure and parts meet the detailed rules of tracking service. If required by the detailed rules, the regional inspector will also conduct witness experiments. When the inspection results meet the requirements, the applicant will be authorized to use the UL mark.
After IPI, inspectors will go to the factory from time to time to check the product structure and witness the experiment. The inspection frequency is determined by the product type and output. Most types of products are tested at least four times a year. The inspector's inspection is to ensure that the products continue to meet the requirements of UL. Please inform UL before you plan to change the product structure or components. There is no need to repeat any experiment for minor changes. UL can quickly modify the tracking service rules so that inspectors can accept such changes. When UL thinks that the change of the product affects its safety performance, it needs to apply for the company to resubmit the sample for necessary testing.
The cost of tracking service is not included in the test fee.
If the product test results cannot meet the requirements of UL standard, UL will inform the applicant and explain the existing problems. After improving the product design, the applicant can resubmit the product. You should tell the UL engineer what improvements have been made to the product so that he can decide that the above steps are the steps to apply for UL certification.