What is UL labeling and what are the standards!

UL is a product safety testing and certification organization, and she is also the founder of the United States product safety standards. For more than a century, UL has tested hundreds of products and components to relevant safety standards and evaluated their management systems to international standards In the United States, UL is the symbol of safety for consumers. Worldwide, UL is one of the most trusted providers of conformity assessment for manufacturers. UL is an acronym for Underwriter Laboratories Inc. UL is the most authoritative and largest private organization in the United States engaged in safety testing and certification. It is an independent, non-profit, professional organization for public **** safety testing. It uses scientific testing methods to study and determine a variety of 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 caused by the information, while carrying out factual research business. In short, it is mainly engaged in product safety certification and business safety certificate business, and its ultimate goal is to contribute to the market to get the goods with a considerable level of safety and to ensure the safety of human health and property. 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. UL certification type division UL product certification, testing services can be divided into the main types of listing, recognition and classification. (1) Listed (LISTED): Generally speaking, the listing applies only to complete products and qualified personnel in the field to replace or install a variety of devices and installations, belonging to the UL listing services for a variety of products, including: household appliances, medical equipment, computers, commercial equipment, as well as the role of the various types of electrical products in buildings, such as power distribution systems, fuses, wires, switches and other electrical components. UL-listed products can usually be marked with the UL Listing Mark on each product. The use of the listing mark. (2) Recognition (Recognized): Recognition services are UL services in a project, the identification of products can only be listed in the UL, classification or other recognized products as components, raw materials used. Recognized products in the structure is not complete, or in the use of certain restrictions to ensure that the expected safety performance. In most cases, the tracking of Recognized Products falls into Category R. Approved products that fall into category L are electronic wire (AVLV2), processed wire (ZKLU2), wire harnesses (ZPFW2), aluminum wire (DVVR2), and metal flex tubing (DXUZ2). Approved products are required to bear the approval mark. 3) Classification: Classification services evaluate products for specific hazards only, or for products that implement standards other than UL standards, including internationally recognized standards such as IEC and ISO standards. Generally speaking, most of the graded products are not consumer products, but industrial or commercial use of the product. UL mark in the graded mark indicates that the product in the UL identification by certain limitations and regulations of the scope. For example, chemicals such as solvents used in industry are evaluated only to the extent that they are likely to catch fire when they reach their ignition temperatures. Classification services and listing services for certain products are the same, but generally only a certain aspect of the product or a number of aspects of the evaluation, such as in the United States, medical X-ray diagnostic equipment to comply with U.S. laws and regulations relating to radiation emission and beam accuracy, but because UL only X-ray as a classification of the product, so only the evaluation of its mechanical properties, electrical properties, and other non-radiation properties of these aspects. (4) Multiple Listing, Multiple Recognition or Multiple Classification Service: When a UL applicant, after obtaining the above listing, recognition or classification service, its products to be manufactured under the name of another company to meet the need for sales, can apply for multiple listing, multiple recognition or multiple classification service, in which case, the manufacturer of the listed, recognized or classified is allowed to use the product directory of the name of the other company In such cases, the manufacturer of the listed, recognized or classified product is permitted to use the name of another company on the product list, provided that the product is identical to the original listed, recognized or classified product, except for the company designator, product designator, or any other characteristic deemed acceptable by UL. (5) "AL" listing, recognition or classification services: If the UL applicant does not want to use their own company name to obtain listing, recognition or classification services, he can apply for another firm (usually retailers or wholesalers) in the name of the application for listing, recognition or classification, that is, "AL" listing, recognition or classification services. The difference between this and multiple listings, multiple approvals or multiple grading services is that the applicant is not a listed person. UL certification process Product application for UL Mark includes the following steps: 1. Applicant to submit information about the company and products Written application: You should request UL in writing to your company's products for testing. Company information: in English and Chinese to provide the following units detailed and accurate name, address, contact person, zip code, telephone and fax. (a). Applicant Company: The company that submits the application for product testing and is responsible for the full cost of engineering services (b). Listed Company: The company whose name is listed in the various catalogs published by UL (c). Manufacturing Facility: The manufacturer and producer of the product. Product Information: Information on the Product shall be provided in English. (a). Name of the product: the full name of the product is provided. (b). Model number of the product: detail all the product models, varieties or classification numbers, etc., for which experiments are required. (c). Intended use of the product: e.g., home, office, factory, coal mine, ship, etc. (d). Parts list: detail the parts and components that make up the product along with the model number (classification number), rating, and name of the manufacturer. For insulation materials, provide the name of the raw material, e.g., GE Polycarbonate, Lexan Type 104 When parts are UL Listed or Recognized, certify the specific model number of the part and indicate its UL File Number. (e). Electrical Properties: For electrical and electronic products. Provide electrical schematics (wiring diagrams) and electrical performance tables. (f). Structural drawings: For most products, provide the product's structural or exploded diagrams, ingredient lists, etc. (g). Photographs of the product, instructions for use, safety etc. or installation instructions, etc. 2. Product testing Product testing is generally conducted in the United States in the UL laboratory, UL can also accept audited participation in third-party test data. Test samples will be sent back or destroyed upon your request. If the product testing results meet the requirements of the UL standard, UL will issue a report of compliance and tracking service details (FollowUp Service Proccdure) test report will detail the test situation, the sample to achieve the indicators, the product structure and the product is suitable for the use of the product safety markings and so on. The FollowUp Service Proccdure includes a description of the product and instructions for UL Regional Inspectors. A copy of the test report is sent to the applicant company, and a copy of the tracking service details are sent to each production plant. 3, the applicant is authorized to use the UL mark in China, UL regional inspectors contact the production plant for the first factory inspection (Initial Production Inspection . IPI), the inspector checks your product and its components in the production line and the warehouse warehouse situation, in order to confirm that the product structure and parts with the tracking service rules, if the rules in the If required by the specifications, the regional inspector will also conduct visual tests. When the inspection results meet the requirements, the applicant will be authorized to use the UL Mark. Following the IPI, inspectors will visit the factory from time to time to check the product structure and conduct witness experiments, the frequency of inspection is determined by the type of product and production volume, most types of products are inspected at least four times a year, the inspector's inspection is to ensure that the product continues to be consistent with the UL requirements, before you plan to change the structure of the product or parts, please notify UL, for changes that are minor changes do not need to be repeated For small changes, there is no need to repeat any experiments, UL can quickly modify the details of the tracking service so that the inspector can accept such changes. When UL believes that the changes affect the safety performance of the product, the applicant company is required to resubmit samples for the necessary testing. The cost of the tracking service is not included in the testing fee. If the product test results can not meet the requirements of UL standards, UL will notify the applicant, explaining the problems, the applicant to improve the product design, you can re-submit the product, you should tell UL engineers, the product to do what improvements, so that it can decide the above are the steps to apply for UL certification. UL certification inspection rules ?6?1 UL inspector's inspection is basically mechanical operations. According to different products, the inspector's inspection based on the announcement (Bulletin), rules (Procedure), FUII (if any, included in the rules) and UL standards (if FUII has requested). If the factory is producing UL products or has UL products in stock when the inspector visits the factory, the inspector will take samples in one of the following ways: 1. individual parts from the production line plus a complete product from the warehouse. 2. individual parts from the production line plus a complete product from the warehouse. 2. components from the warehouse plus a complete product from the production line. 3. a complete product from the warehouse for splitting. The exact number of samples taken is determined by rule, FUII (Follow-Up Inspection Instruction), SAP (Standard Attachment Sheet), or direct order from UL Laboratories. Inspectors do not necessarily inspect all products at each inspection, but they try to inspect all product categories or models within a year or at least two years. Generally speaking, UL is not too high on the factory production system requirements, only requires the instrumentation once a year to measure, keep the factory's own inspection records, as well as a certain means of control of nonconforming products can be. Inspection, the field representative (UL inspector) will focus on the product itself, they will be based on the above inspection basis for checking the product structure, components and assembly. For parts and components related to product safety, the general rules will specify the requirements for UL certified products, and will indicate the manufacturer and model number; for the shell, shroud and other injection molded parts, in general, the rules will specify the raw materials and size requirements. The field representative will check the above items as well as the UL marking specified in the rules. In addition, if the rules or FUII or standards require on-site testing of the product, the field representative will ask the factory inspector to do the appropriate tests, while the field representative is witnessed. If the rules also require that samples be sent to UL for tracking tests, the factory should cooperate with the inspector to produce the appropriate samples, the inspector wrote a good sample label, provide the address and seal the samples, sent by the factory to the appropriate UL laboratory. If the products produced by the factory in full compliance with the requirements of the corresponding UL inspection standards, there is no other violation of the tracking service agreement, the inspector will issue a tracking inspection report (Inspection Report); factory representatives in the confirmation of the accuracy of its content should be signed on the report; a test is completed. If the inspection process does not meet the inspection standards, the inspector will issue a change notice (Variation Notice), and take appropriate measures according to the specific circumstances. For unauthorized use of UL marking of the product, the inspector will require the removal of UL marking; for products that do not meet the requirements of UL, the inspector will be required to remove the UL marking factory or rework to make it comply with the requirements; if the factory does not agree with the above views on the handling of the factory, it can be retained UL marking, but must stop shipments, the inspector will notify the appropriate laboratory of the situation, the UL to make a reply to decide whether to keep the UL mark; if there are only some minor problems, does not affect the safety of the product, the inspector will make a temporary acceptance of the decision and report to the appropriate laboratory; if it is some obvious standard errors, such as typing errors or unit errors, it does not affect the factory product qualification, but as a UL document processing, the inspector will also issue a notice of change. In general, unless UL's responsibility, the inspector will require the factory does not meet the explanation of the various items to the appropriate laboratory, UL will be based on your explanation to make the appropriate response. Of course, the inspector's judgment is only temporary, the final decision of course in the UL laboratory. If the factory does not agree with the practice of inspection, it is entirely possible to reflect to the appropriate laboratory, at this time, the inspector is obliged to provide the appropriate contact person and contact method. In the confirmation of the contents of the notice of change recorded in the correct, factory representatives should sign the notice. UL certified factory inspection UL regional inspectors in China to contact the production plant for the first factory inspection (Initial Production Inspection, referred to as IPI), the inspector checks your products and their components in the production line and warehouse warehouse situation, in order to confirm that the product structure and parts with the tracking service rules, if the rules require, the regional inspector will conduct visual experiments. If required by the rules, the regional inspector will conduct a visual inspection. When the inspection results are compliant, the applicant is authorized to use the UL Mark. Following the IPI, inspectors visit the factory from time to time to inspect the product structure and conduct visual tests. The frequency of inspections is determined by the type of product and the volume of production, with most types of products inspected at least four times per year (the cost of follow-up services is not included in the cost of testing). The inspector's inspection is to ensure that the product continues to conform to UL requirements. notify UL in advance before you plan to change the structure or components of the product. for changes that are minor and do not require the repetition of any experiments, UL can quickly modify the Tracking Service specifications to make such changes acceptable to the inspector. When UL believes that the product changes affect its safety performance, the applicant company needs to resubmit samples for the necessary testing. UL certification tracking inspection for UL certification of an integral part, in order to ensure that UL's listed, recognized products continue to meet UL standards and requirements, UL has developed a "tracking inspection" system." Tracking inspection" is sent by the UL field representatives around the world to the local factory production site to UL's product tracking inspection. Its purpose is through the factory's production process, inspection process and products, against UL standards and tracking inspection rules for verification, to ensure that the manufacturer's production process, inspection process and products always meet the requirements of UL. Tracking inspection basis: field representatives to the factory mainly according to the "tracking inspection details" for inspection. Follow-up inspection details" is by the UL Engineering Department, in the samples submitted for inspection after the preparation of the test, this document includes a comprehensive description of the product, but also includes photographs] manuals, etc. It also specifies that the manufacturing plant during production. It also specifies the various tests that the manufacturing plant is required to perform on a regular basis during production, some of which are required to be performed on 100% of the product, such as the withstand voltage test. Certain tests may be carried out on a sample basis, and it also specifies the tests that must be sampled by the site representative during on-site inspections at the factory. Field representatives according to the details of such tests and regulations to determine whether the test results are qualified. Classification of tracking test products: UL's tracking test is divided into categories R and L. Category L services are mainly used and life safety-related products, such as fire extinguishers, smoke detectors, fire doors and some production of a considerable number of products, such as electrical equipment, wires and circuit breakers. For products belonging to Class L, manufacturers must order labels directly from UL to be affixed to the product.Class R service is mainly used for electrical equipment, such as fans, televisions, hair dryers, ovens and other products that are usually produced with the appropriate assembly line. Information to be submitted for UL certification Written application: You should request UL in writing to test your company's products. Company information: in English and Chinese to provide the following units detailed and accurate name, address, contact person, zip code, telephone and fax. (a). Applicant Company: The company that submits the application for product testing and is responsible for the full cost of engineering services (b). Listed Company: The company whose name is listed in the various catalogs published by UL (c). Manufacturing Facility: The manufacturer and producer of the product. Product Information: Information on the Product shall be provided in English. (a). Name of the product: the full name of the product is provided. (b). Model number of the product: detail all the product models, varieties or classification numbers, etc., for which experiments are required. (c). Intended use of the product: e.g., home, office, factory, coal mine, ship, etc. (d). Parts list: detail the parts and components that make up the product along with the model number (classification number), rating, and name of the manufacturer. For insulation materials, provide the name of the raw material, e.g., GE Polycarbonate, Lexan Type 104 When parts are UL Listed or Recognized, certify the specific model number of the part and indicate its UL File Number. (e). Electrical Properties: For electrical and electronic products. Provide electrical schematics (wiring diagrams) and electrical performance tables. (f). Structural drawings: For most products, provide the product's structural or exploded diagrams, ingredient lists, etc. (g). Photographs of the product, instructions for use, safety etc. or installation instructions etc.

References:

/view/168592.html