- European certification
- US certification
- Asian certification
- Australian certification
- Chemical detection
- Medical certification
- Energy efficiency certification
- Industrial product certification
- Reliability test
- Vehicle test certification
- Military product certification
- Other certification services
- Robot CR certification
-
- 消防認證
National testing and certification one-stop service hotline:15013801663
|
Home > Services
US UL certification
- Time：2018-04-19
- Viewing count：1629
UL certification
UL is a shorthand for Underwriter Laboratories Inc. The UL Safety Laboratory is the most authoritative in the United States and the largest private institution in the world for safety testing and identification. It is an independent, non-profit, professional organization that tests for public safety. It uses scientific testing methods to determine the extent to which various materials, devices, products, equipment, buildings, etc. are hazardous or hazardous to life and property; to determine, prepare, and issue appropriate standards and to help reduce and prevent life. The property is subject to loss of information, and at the same time conducts fact-finding business.
Certification significance
The significance of the UL certification mark for the company:
1. The entire US market pays great attention to product safety; consumers and purchasers will choose products with UL certification mark when purchasing products.
2, UL history has more than 100 years, the image of security is deeply rooted in consumers and the government, if you do not directly sell products to consumers, the middlemen will also require products with UL certification mark, so that the products sell well.
3. The federal, state, county, and municipal governments of the United States have more than 40,000 political districts and all recognize the UL certification mark.
Certification step
Applicant submits relevant company and product information
Written application: You should request UL to test your company's products in writing.
Company Information: Provide detailed and accurate names, addresses, contacts, zip codes, telephone numbers and faxes in the following units in both Chinese and English.
(a). Application company: A company that submits a product testing application and is responsible for all engineering service fees.
(b). Listed companies: companies whose names are listed in various product catalogues published by UL
(c) Production plant: The manufacturer and producer of the product.
Product Information: Product information should be provided in English.
(a). Name of the product: Provide the full name of the product.
(b). Product model: List all the product models, varieties or classification numbers that need to be tested.
(c). 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), the rating, and the name of the manufacturer that make up the product. For insulating materials, please provide the name of the raw material, for example: GE Polycarbonate, Lexan Type 104. When the component has obtained UL certification or approval, please prove the specific model of the component and indicate its UL file number (e). Electrical performance: For electronic and electrical products. Provide electrical schematic (circuit diagram), electrical performance table.
(f). Structure diagram: For most products, it is necessary to provide structural drawings or explosion diagrams, ingredient lists, etc. of the product.
(g). Photographs of the product, instructions for use, safety, etc. or installation instructions.
Make decisions based on the product information provided
When the product information is complete, UL engineers make the following decisions based on the information: the UL standard on which the experiment is based, the engineering cost of the test, the time of the test, the number of samples, etc., notify you in writing, and the formal application form and tracking service The agreement is sent to your company. The fee limit is stated in the application form and is the maximum project cost estimated by UL according to the test items. The fee limit cannot be exceeded without the written authorization of your company. Apply for company remittance, return application form and sample
UL certificate
The applicant signs the application form and the tracking service agreement, and sends the form back to the UL company. At the same time, the sample is sent by post at the post office or by express mail. Please provide appropriate instructions for the sample to be submitted (eg Name, model). Application forms and samples should be sent separately. For each application, UL will specify a unique project number (Project No.) to indicate the project number and application company name when remittance, sample and application form, in order to facilitate UL inspection.
product testing
Upon receipt of the application form, remittance, and experimental samples signed by your company, UL will notify you of the time of completion of the experimental plan. Product testing is generally performed in UL laboratories in the United States, and UL can also accept audited participation in third-party testing data. The experimental samples will be returned or destroyed according to your requirements.
If the product test results meet the requirements of the UL standard, UL will issue a test report and follow-up service (FollowUp Service Procedure) test report will detail the test situation, the sample reached the index, the product structure and the safety signs suitable for the use of the product. A description of the product and instructions for the UL Regional Inspector are included in the Tracking Service Rules. A copy of the test report is sent to the applicant company and a copy of the tracking service details is sent to each production facility.
Applicant is authorized to use the UL Mark
The UL Regional Inspector in China contacts the production facility for the Initial Production Inspection (IPI). The inspector checks the condition of your products and their parts in the production line and warehouse inventory to confirm the product structure and parts. The tracking service rules are consistent. If required by the rules, the regional inspector will also conduct a witness test. When the inspection result meets the requirements, the applicant is authorized to use the UL mark.
After the IPI, the inspectors will go to the factory to check the product structure and conduct the sighting test from time to time. The frequency of inspection is determined by the type of product and the quantity of production. Most types of products are inspected at least four times a year. The inspectors are inspecting Ensure that the product continues to be consistent with UL requirements. Please notify UL before you plan to change the product structure or components. For minor changes, you do not need to repeat any experiments. UL can quickly modify the tracking service rules so that inspectors can accept This change. When UL believes that a product change affects its safety performance, it is necessary to apply for a company to resubmit the sample for necessary testing.
The cost of tracking the service is not included in the test fee.
If the product test results do not meet the UL standard requirements, UL will notify the applicant to explain the problems. After the applicant improves the product design, the product can be re-inspected. You should tell the UL engineer what improvements the product has made so that it can decide [ 2]
Four UL inspection rules, certification review and follow-up inspection UL inspection rules
The UL inspector's inspection is basically a mechanical operation. Depending on the product, the inspector's inspection is based on Bulletin, Procedure, FUII (if included, included in the Bye-Law) and UL Standard (if requested in FUII).
If the inspector visits the factory and the factory is producing UL products, or stocked UL products, the inspector will sample the samples in one of the following ways:
1. Extract each part from the production line plus a complete product extracted from the warehouse.
2. Extract each part from the warehouse plus the complete product on the production line.
3. Extract the complete product from the warehouse for splitting.
The exact number of samples is determined by the rules, FUII (Tracking Inspection Instructions), SAP (Standard Attachment) or direct orders from the UL Laboratory. Inspectors do not necessarily inspect all products at each inspection, but they will try to inspect all product categories or models within one year or at least two years.
Generally speaking, UL's requirements for the factory production system are not too high. It is only required to measure the equipment once a year, save the factory's own inspection records, and have certain control measures for the non-conforming products.
At the time of inspection, the on-site representative (UL inspector) will focus on the product itself, and they will check the structure, components and assembly of the product one by one according to the above inspection basis. For parts related to product safety, the general rules specify the requirements for UL-certified products, and will indicate the manufacturer and model; for shells, shields and other injection molded parts, the general rules will specify the raw materials and size requirements. The on-site representative will check the UL mark as specified in the above items and rules.
testing on the spot
In addition, if the specification or FUII or standard requires on-site testing of the product, the site representative will ask the factory inspector to do the corresponding tests, while the on-site representative will witness it. If the rules also require the sample to be sent to UL for tracking test, the factory shall cooperate with the inspector to produce the corresponding sample. After the inspector writes the sample label, provides the address and seals the sample, the factory sends it to the corresponding UL laboratory.
If the products produced by the factory fully comply with the requirements of the corresponding UL inspection standards and there is no other violation of the tracking service agreement, the inspector will issue an inspection report (Inspection Report); the factory representative should report on the report after confirming that the content is correct. Signature; one test is completed. If there is a non-compliance with the inspection standard during the inspection, the inspector will issue a Variation Notice and take appropriate measures according to the specific circumstances.
Remove UL mark
In the case of unauthorized use of the UL mark, the inspector will request removal of the UL mark; for products that do not meet UL requirements, the inspector will require the factory to remove the UL mark or rework to meet the requirements; if the factory disagrees with the above treatment, then Temporarily retain the UL mark, but must stop the shipment, the inspector will inform the appropriate laboratory, the UL will reply to decide whether the UL mark can be retained; if there are only some minor problems, it does not affect the safety of the product, The inspector will make a provisional acceptance decision and report it to the appropriate laboratory; if there are some obvious standard errors, such as typing errors or unit errors, it will not affect the conformity of the factory products, but as a UL document, The inspector will also issue a notice of change. Under normal circumstances, unless it is the responsibility of UL, the inspector will ask the factory to explain the non-conformity to the corresponding laboratory, UL will respond accordingly according to your explanation.
Final decision
Of course, the inspector's judgment is only temporary, and the final decision is of course in UL laboratories. If the factory disagrees with the inspection method, it can be fully reflected to the corresponding laboratory. At this time, the inspector is obliged to provide the corresponding contact person and contact method. The factory representative shall sign the notice after confirming that the contents recorded in the change notice are correct.
UL certified factory inspection
The UL Regional Inspector in China contacts the production plant for the Initial Production Inspection (IPI). The inspector checks the condition of your products and their parts in the production line and warehouse inventory to confirm the product structure and parts. Consistent with the Tracking Service Rules, the District Inspector will conduct a witness test if required by the Rules. When the inspection results meet the requirements, the applicant is authorized to use the UL Mark.
After the IPI, the inspectors will go to the factory to check the product structure and conduct eye test experiments from time to time. The frequency of inspections is determined by the type of product and the volume of production. Most types of products are inspected at least four times a year (the cost of tracking services is not included in the cost of the test).
Certification review
Prior to the first shipment, UL-certified products were sent to the factory for inspection by the local provincial-level China Import and Export Commodity Inspection Bureau (CCIC) authorized by UL. Follow up the inspection every year.
Introduction to tracking inspection
As an integral part of UL certification, UL has established a "tracking inspection" system to ensure that UL's listing and approved products continue to meet UL standards and requirements. "Tracking inspection" is the inspection and inspection of UL products by UL's field representatives distributed around the world to the local factory production site. The purpose is to verify the manufacturer's production process, inspection process and products by UL's requirements through the production process, inspection process and products of the factory, in accordance with UL standards and tracking inspection rules.
Basis for tracking inspection
After the on-site representative arrives at the factory, the inspection is mainly carried out according to the "Tracking Inspection Rules". The "Tracking Inspection Rules" was prepared by the UL Engineering Department after testing the samples submitted for inspection. This document includes a comprehensive description of the product, including photos, instructions, and so on. It also stipulates various tests that are often performed by manufacturing plants during production, some of which require 100% of the product, such as withstand voltage tests. Some inspections can be carried out by sampling, and test items that must be spot-checked by the on-site representative at the factory site inspection are also specified. The site representative judges whether the test results are qualified based on the detailed information and regulations of such tests.
Tracking the classification of products
The review is divided into the first review and the quarterly review. The cost of the first review is relatively higher. The UL follow-up test is divided into R and L categories. Class L services are primarily used for life safety related products such as fire extinguishers, smoke detectors, fire doors and some products with considerable output, such as electrical equipment, wires and circuit breakers. For products belonging to the L category, the manufacturer must attach the UL order label directly to the product. Class R services are primarily used in electrical equipment such as fans, televisions, hair dryers, ovens, and other products that are commonly used in the production line.
Precautions
1. The minimum height of the registered trademark should be 3/64 inches.
2. When the outer diameter of the UL mark is less than 3/8 inch, the registered trademark symbol can be ignored if it is not clearly readable under naked eyes.
3. Marking can be directly and fixed on a constant product by stamping, molding, ink printing, screen printing or the like.
4. Obtaining the mark: The manufacturer can reprint or obtain it from a UL authorized dealer.
UL is a shorthand for Underwriter Laboratories Inc. The UL Safety Laboratory is the most authoritative in the United States and the largest private institution in the world for safety testing and identification. It is an independent, non-profit, professional organization that tests for public safety. It uses scientific testing methods to determine the extent to which various materials, devices, products, equipment, buildings, etc. are hazardous or hazardous to life and property; to determine, prepare, and issue appropriate standards and to help reduce and prevent life. The property is subject to loss of information, and at the same time conducts fact-finding business.
Certification significance
The significance of the UL certification mark for the company:
1. The entire US market pays great attention to product safety; consumers and purchasers will choose products with UL certification mark when purchasing products.
2, UL history has more than 100 years, the image of security is deeply rooted in consumers and the government, if you do not directly sell products to consumers, the middlemen will also require products with UL certification mark, so that the products sell well.
3. The federal, state, county, and municipal governments of the United States have more than 40,000 political districts and all recognize the UL certification mark.
Certification step
Applicant submits relevant company and product information
Written application: You should request UL to test your company's products in writing.
Company Information: Provide detailed and accurate names, addresses, contacts, zip codes, telephone numbers and faxes in the following units in both Chinese and English.
(a). Application company: A company that submits a product testing application and is responsible for all engineering service fees.
(b). Listed companies: companies whose names are listed in various product catalogues published by UL
(c) Production plant: The manufacturer and producer of the product.
Product Information: Product information should be provided in English.
(a). Name of the product: Provide the full name of the product.
(b). Product model: List all the product models, varieties or classification numbers that need to be tested.
(c). 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), the rating, and the name of the manufacturer that make up the product. For insulating materials, please provide the name of the raw material, for example: GE Polycarbonate, Lexan Type 104. When the component has obtained UL certification or approval, please prove the specific model of the component and indicate its UL file number (e). Electrical performance: For electronic and electrical products. Provide electrical schematic (circuit diagram), electrical performance table.
(f). Structure diagram: For most products, it is necessary to provide structural drawings or explosion diagrams, ingredient lists, etc. of the product.
(g). Photographs of the product, instructions for use, safety, etc. or installation instructions.
Make decisions based on the product information provided
When the product information is complete, UL engineers make the following decisions based on the information: the UL standard on which the experiment is based, the engineering cost of the test, the time of the test, the number of samples, etc., notify you in writing, and the formal application form and tracking service The agreement is sent to your company. The fee limit is stated in the application form and is the maximum project cost estimated by UL according to the test items. The fee limit cannot be exceeded without the written authorization of your company. Apply for company remittance, return application form and sample
UL certificate
The applicant signs the application form and the tracking service agreement, and sends the form back to the UL company. At the same time, the sample is sent by post at the post office or by express mail. Please provide appropriate instructions for the sample to be submitted (eg Name, model). Application forms and samples should be sent separately. For each application, UL will specify a unique project number (Project No.) to indicate the project number and application company name when remittance, sample and application form, in order to facilitate UL inspection.
product testing
Upon receipt of the application form, remittance, and experimental samples signed by your company, UL will notify you of the time of completion of the experimental plan. Product testing is generally performed in UL laboratories in the United States, and UL can also accept audited participation in third-party testing data. The experimental samples will be returned or destroyed according to your requirements.
If the product test results meet the requirements of the UL standard, UL will issue a test report and follow-up service (FollowUp Service Procedure) test report will detail the test situation, the sample reached the index, the product structure and the safety signs suitable for the use of the product. A description of the product and instructions for the UL Regional Inspector are included in the Tracking Service Rules. A copy of the test report is sent to the applicant company and a copy of the tracking service details is sent to each production facility.
Applicant is authorized to use the UL Mark
The UL Regional Inspector in China contacts the production facility for the Initial Production Inspection (IPI). The inspector checks the condition of your products and their parts in the production line and warehouse inventory to confirm the product structure and parts. The tracking service rules are consistent. If required by the rules, the regional inspector will also conduct a witness test. When the inspection result meets the requirements, the applicant is authorized to use the UL mark.
After the IPI, the inspectors will go to the factory to check the product structure and conduct the sighting test from time to time. The frequency of inspection is determined by the type of product and the quantity of production. Most types of products are inspected at least four times a year. The inspectors are inspecting Ensure that the product continues to be consistent with UL requirements. Please notify UL before you plan to change the product structure or components. For minor changes, you do not need to repeat any experiments. UL can quickly modify the tracking service rules so that inspectors can accept This change. When UL believes that a product change affects its safety performance, it is necessary to apply for a company to resubmit the sample for necessary testing.
The cost of tracking the service is not included in the test fee.
If the product test results do not meet the UL standard requirements, UL will notify the applicant to explain the problems. After the applicant improves the product design, the product can be re-inspected. You should tell the UL engineer what improvements the product has made so that it can decide [ 2]
Four UL inspection rules, certification review and follow-up inspection UL inspection rules
The UL inspector's inspection is basically a mechanical operation. Depending on the product, the inspector's inspection is based on Bulletin, Procedure, FUII (if included, included in the Bye-Law) and UL Standard (if requested in FUII).
If the inspector visits the factory and the factory is producing UL products, or stocked UL products, the inspector will sample the samples in one of the following ways:
1. Extract each part from the production line plus a complete product extracted from the warehouse.
2. Extract each part from the warehouse plus the complete product on the production line.
3. Extract the complete product from the warehouse for splitting.
The exact number of samples is determined by the rules, FUII (Tracking Inspection Instructions), SAP (Standard Attachment) or direct orders from the UL Laboratory. Inspectors do not necessarily inspect all products at each inspection, but they will try to inspect all product categories or models within one year or at least two years.
Generally speaking, UL's requirements for the factory production system are not too high. It is only required to measure the equipment once a year, save the factory's own inspection records, and have certain control measures for the non-conforming products.
At the time of inspection, the on-site representative (UL inspector) will focus on the product itself, and they will check the structure, components and assembly of the product one by one according to the above inspection basis. For parts related to product safety, the general rules specify the requirements for UL-certified products, and will indicate the manufacturer and model; for shells, shields and other injection molded parts, the general rules will specify the raw materials and size requirements. The on-site representative will check the UL mark as specified in the above items and rules.
testing on the spot
In addition, if the specification or FUII or standard requires on-site testing of the product, the site representative will ask the factory inspector to do the corresponding tests, while the on-site representative will witness it. If the rules also require the sample to be sent to UL for tracking test, the factory shall cooperate with the inspector to produce the corresponding sample. After the inspector writes the sample label, provides the address and seals the sample, the factory sends it to the corresponding UL laboratory.
If the products produced by the factory fully comply with the requirements of the corresponding UL inspection standards and there is no other violation of the tracking service agreement, the inspector will issue an inspection report (Inspection Report); the factory representative should report on the report after confirming that the content is correct. Signature; one test is completed. If there is a non-compliance with the inspection standard during the inspection, the inspector will issue a Variation Notice and take appropriate measures according to the specific circumstances.
Remove UL mark
In the case of unauthorized use of the UL mark, the inspector will request removal of the UL mark; for products that do not meet UL requirements, the inspector will require the factory to remove the UL mark or rework to meet the requirements; if the factory disagrees with the above treatment, then Temporarily retain the UL mark, but must stop the shipment, the inspector will inform the appropriate laboratory, the UL will reply to decide whether the UL mark can be retained; if there are only some minor problems, it does not affect the safety of the product, The inspector will make a provisional acceptance decision and report it to the appropriate laboratory; if there are some obvious standard errors, such as typing errors or unit errors, it will not affect the conformity of the factory products, but as a UL document, The inspector will also issue a notice of change. Under normal circumstances, unless it is the responsibility of UL, the inspector will ask the factory to explain the non-conformity to the corresponding laboratory, UL will respond accordingly according to your explanation.
Final decision
Of course, the inspector's judgment is only temporary, and the final decision is of course in UL laboratories. If the factory disagrees with the inspection method, it can be fully reflected to the corresponding laboratory. At this time, the inspector is obliged to provide the corresponding contact person and contact method. The factory representative shall sign the notice after confirming that the contents recorded in the change notice are correct.
UL certified factory inspection
The UL Regional Inspector in China contacts the production plant for the Initial Production Inspection (IPI). The inspector checks the condition of your products and their parts in the production line and warehouse inventory to confirm the product structure and parts. Consistent with the Tracking Service Rules, the District Inspector will conduct a witness test if required by the Rules. When the inspection results meet the requirements, the applicant is authorized to use the UL Mark.
After the IPI, the inspectors will go to the factory to check the product structure and conduct eye test experiments from time to time. The frequency of inspections is determined by the type of product and the volume of production. Most types of products are inspected at least four times a year (the cost of tracking services is not included in the cost of the test).
Certification review
Prior to the first shipment, UL-certified products were sent to the factory for inspection by the local provincial-level China Import and Export Commodity Inspection Bureau (CCIC) authorized by UL. Follow up the inspection every year.
Introduction to tracking inspection
As an integral part of UL certification, UL has established a "tracking inspection" system to ensure that UL's listing and approved products continue to meet UL standards and requirements. "Tracking inspection" is the inspection and inspection of UL products by UL's field representatives distributed around the world to the local factory production site. The purpose is to verify the manufacturer's production process, inspection process and products by UL's requirements through the production process, inspection process and products of the factory, in accordance with UL standards and tracking inspection rules.
Basis for tracking inspection
After the on-site representative arrives at the factory, the inspection is mainly carried out according to the "Tracking Inspection Rules". The "Tracking Inspection Rules" was prepared by the UL Engineering Department after testing the samples submitted for inspection. This document includes a comprehensive description of the product, including photos, instructions, and so on. It also stipulates various tests that are often performed by manufacturing plants during production, some of which require 100% of the product, such as withstand voltage tests. Some inspections can be carried out by sampling, and test items that must be spot-checked by the on-site representative at the factory site inspection are also specified. The site representative judges whether the test results are qualified based on the detailed information and regulations of such tests.
Tracking the classification of products
The review is divided into the first review and the quarterly review. The cost of the first review is relatively higher. The UL follow-up test is divided into R and L categories. Class L services are primarily used for life safety related products such as fire extinguishers, smoke detectors, fire doors and some products with considerable output, such as electrical equipment, wires and circuit breakers. For products belonging to the L category, the manufacturer must attach the UL order label directly to the product. Class R services are primarily used in electrical equipment such as fans, televisions, hair dryers, ovens, and other products that are commonly used in the production line.
Precautions
1. The minimum height of the registered trademark should be 3/64 inches.
2. When the outer diameter of the UL mark is less than 3/8 inch, the registered trademark symbol can be ignored if it is not clearly readable under naked eyes.
3. Marking can be directly and fixed on a constant product by stamping, molding, ink printing, screen printing or the like.
4. Obtaining the mark: The manufacturer can reprint or obtain it from a UL authorized dealer.
Previous：USA FCC Certification
Next：US ETL certification
Copyright ? Shenzhen Bojunda Electronic Technology Co., Ltd.
Contact: Miss Huang Tel: 15013801663
Address: 3rd Floor, Building 1, No. 14, Factory Building, No.1 Industrial Pit, No.1 Industrial Zone, Langxin Community, Shiyan Street, Baoan District, Shenzhen
-
Online consultation
-
Telephone consultation
15013801663 -
Back to top