Historical Version s - view previous versions of standard. More E Typical as-fabricated lay-ups include uniaxial, cross ply and angle ply laminates; as well as honeycomb sandwich core materials. These procedures can be used throughout the life cycle of the materials; product and process design optimization, on line process control, after manufacture inspection, and in service inspection.
Contact methods such as angle-beam techniques using shear waves, or surface-beam techniques using Lamb waves, are not discussed. As used in this practice, both require the use of a pulsed straight-beam ultrasonic longitudinal wave followed by observing indications of either the reflected pulse-echo or received through transmission wave.
Each has its own merits and requirements for inspection and shall be selected as agreed upon in a contractual document. This procedure requires access to only one side of the specimen. This procedure can be conducted by automated or manual means. Automated and manual test results may be imaged or recorded.Humsafar 23
One transmits a longitudinal wave and the other receives the longitudinal wave in the range of 0. This procedure requires access to both sides of the specimen. This procedure is automated and the examination results are recorded.
It is the responsibility of the user of this standard to establish appropriate safety, health, environmental practices and determine the applicability of regulatory limitations prior to use. Referenced Documents purchase separately The documents listed below are referenced within the subject standard but are not provided as part of the standard. Scope 1. Link to Active This link will always route to the current Active version of the standard.View All. Navy Applications.
Standard for Rotating Electrical Machines - Part Standard methods for determining losses and efficiency from tests excluding machines for traction vehicles. Standard for Explosive atmospheres - Part 2: Equipment protection by pressurized enclosure 'p'. Explosive Atmospheres - Part 7: Equipment protection by increased safety 'e'.ATE Germany: Automated EV Battery Pack Test Demo
Explosive atmospheres - Part Equipment protection by type of protection 'n'. Household and Similar Appliances - Safety - Part Particular requirements for floor treatment machines, for commercial use. Live working - Insulating foam-filled tubes and solid rods - Part 1: Tubes and rods of a circular cross-section. Standard for Low-Voltage Switchgear and Controlgear - Part Control circuit devices and switching elements - Electrical emergency stop device with mechanical latching function.
Low-voltage switchgear and controlgear - Part Ancillary equipment - Terminal blocks for copper conductors. Terrestrial photovoltaic PV modules - Design qualification and type approval - Part Special requirements for testing of crystalline silicon photovoltaic PV modules.Sino iptv
Terrestrial photovoltaic PV modules - Design qualification and type approval - Part Special requirements for testing of thin-film amorphous silicon based photovoltaic PV modules. Standard for Safety of power converters for use in photovoltaic power systems - Part 1: General requirements.Answers to questions that are often asked by code authorities. If you have a question that is not covered below, please contact us. What is this Mark and what does it mean? This Mark is our Enhanced Certification Mark, and it includes information to assist in verifying the product is certified and describing the scope of the certification.
For more answers to common questions about the Enhanced Certification Mark click here. A CE Marking is a European marking of conformity that indicates that a product complies with the requirements of the applicable European laws or directives. The European Community established the CE marking system to ensure free movement of products between member countries and to remove internal barriers to trade. Because most products bearing the CE mark are not required to be third-party certified, are not subject to ongoing factory surveillance of production, and may not be compliant with applicable U.
For more information about the CE mark click here. A contractor wants to add UL labels to unlabeled products at the job site. Is this acceptable? Any violations should be immediately reported to UL. The only exception is if UL authorizes the UL Mark to be applied in the field as a result of a field inspection.
During a field inspection UL representatives determine if the product complies with applicable safety standards and requirements, and if compliance is determined product labeling is performed in the presence of the UL representative. However, this takes place only after the local authority having jurisdiction has been consulted.
Click here for additional details. What does this mean? There are several possibilities, including the following:. UL Listed products are required to carry a marking to identify the Listed company. Identification of the Listee appears on the product itself or, in some cases, on the smallest unit container in which a product is shipped. A UL Listed product was modified in the field. Does this void the Listing? It is the responsibility of the Authority Having Jurisdiction to assess the acceptability of the modifications or to determine if the modifications are significant enough to require a UL staff member to evaluate the modified product.
UL can assist the AHJ in making this determination.We help you tackle your challenges with offerings tailored to business needs and industry issues, strategic solutions for the most complex problems and services to address specific concerns. Navigate your business in an increasingly complex world with industry leading research and actionable insights from UL.
Explore our press releases and news updates. Delve into detailed press kits for information on our work. Connect with us in person or online, around the globe. Businesses, industries, governments, regulatory authorities and the public put their trust in us so they can make smarter decisions.
Explore our business intelligence-building digital tools and databases, search for help, review our business information, or share your concerns and questions. A secure, online source for increased visibility into your UL project files, product information, documents, samples and services. Access UL certification data on products, components and systems, identify alternatives and view UL guide information with Product iQ.
Helping manufacturers produce reliable and safe battery cells with a targeted array of services designed to give all stakeholders increased confidence. Manufacturers and consumers want trustworthy assurance regarding the performance, reliability and safety of battery cells used in an ever-growing number of products. We offer a targeted array of services designed to give all stakeholders increased confidence in these products.
Our electromagnetic compatibility EMC service enables you to optimize your own in-house testing capabilities to identify and resolve EMC problems as early as possible.
Widely known to apply to lithium-ion batteries, this Standard focused on portable consumer applications. It was not tailored to the needs of motive or stationary applications. This means fewer samples required for testing, reduced conditioning requirements and increased overall speed to market. We help you achieve global market access with advisory services, testing and certifications to UL Standards specific to batteries, electrochemical capacitors, fuel cells and related energy storage technologies.
We also assist with transportation and regional standards, as well as assist with obtaining local country marks, including:. Testing can be combined into a single, turnkey conformity assessment based on individual customer needs. Our engineering team of industry experts will also conduct custom research for manufacturers, to spot problems, remediate risk, and provide documentation of due diligence.Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes.
Learn More. Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards. Validating the specifications, value and safety of your raw materials, products and assets. Formally confirming that your products and services meet all trusted external and internal standards. Bring your automotive battery technologies to market quickly and cost-effectively. When adapting your battery packs, cells, chargers, service disconnects, and wires harnesses for EV and HEV applications, we can help you verify all related parts and products for distribution via global supply chains.
Learn about our battery performance testing and validation services. Intertek Global Website. Toggle navigation Intertek. Industries Services. Assurance Enabling you to identify and mitigate the intrinsic risk in your operations, supply chains and business processes. Testing Evaluating how your products and services meet and exceed quality, safety, sustainability and performance standards.
Inspection Validating the specifications, value and safety of your raw materials, products and assets.Where can i sell pallets
Certification Formally confirming that your products and services meet all trusted external and internal standards. Assurance Testing Inspection Certification.
Through our network of over 46, people in 1, laboratories and offices in countries, Intertek provides quality and safety solutions to a wide range of industries around the world. Find out more.
UL to release requirements for electric vehicle batteries
Global Reach Intertek is the industry leader with over 46, people in 1, locations in over countries. Whether your business is local or global, we can ensure your products meet quality, health, environmental, safety, and social accountability standards for virtually any market around the world. Need help or have a question? Have a Question? Events More Events with an Intertek Presence. X Title.In the last decade or so, media reports about lithium battery overheating, explosions and fires became much more frequent, leading to worries about their safety.
As electronic devices increase in portability and lithium-ion batteries increase in number to accommodate these devices, battery manufacturers, standards agencies and consumers must get on the same page to ensure that battery fires and explosions stay at a respectable minimum.
Starting aroundmany aircraft manufacturers incorporated lithium-ion batteries for powering in-flight systems. Shortly after the introduction of the Boeing Dreamliner, a handful of incidents involving battery fires in these aircraft were widely reported. Several dozen reported battery fires — all due to manufacturing defects — in Galaxy Note 7 phones led to Samsung recalling 2. Lithium-ion batteries contain a flammable chemical electrolyte. If a battery is stressed beyond its capacity, its electrochemistry can experience thermal runaway and overheat, which may ultimately cause a fire or explosion.
In short, lithium-ion chemistries can be dangerous. Exploding phones and aircraft fires make great news stories.
Battery Module and Pack Testing for Manufacturers
But in reality, lithium-ion batteries are safe and an extremely effective means for energy storage and incidents are rare. Now, there can be instances where for a certain battery — for example, those that have been involved in some of the very public-facing recalls — the failure rate is much higher because of those manufacturing defects, or other factors that maybe reflect design problems.
Lithium-ion chemistries are so effective that their use and production is expanding rapidly in almost any application requiring rechargeable batteries. Lithium-ion batteries are now common in portable electronics like smartphones, laptops, handheld game systems and cameras, handheld power tools, electric vehicles and radio-controlled devices like drones.
Battery defects are a leading cause of incidents. Potentially conductive contaminants, which can later lead to thermal runaway conditions, are sometimes introduced during the manufacturing process. Batteries have a separator that controls their electrochemistry by isolating the anode and cathode. Battery standards provide guidance as to the manufacturing process as well as test methods to help ensure safety. Lithium-ion batteries are unique in that the way they are used is just as important as their internal integrity.Numerical optimal control
Individual batteries are often incorporated in battery packs with associated electronics, so when discussing safety the integrity of the entire electrical system comes into play. As a result, while cell standards like UL are important, application-specific standards are equally critical.We help you tackle your challenges with offerings tailored to business needs and industry issues, strategic solutions for the most complex problems and services to address specific concerns.
Navigate your business in an increasingly complex world with industry leading research and actionable insights from UL. Explore our press releases and news updates.
Lithium-ion Battery Safety: Using Standards to Prevent Explosive News
Delve into detailed press kits for information on our work. Connect with us in person or online, around the globe. Businesses, industries, governments, regulatory authorities and the public put their trust in us so they can make smarter decisions. Explore our business intelligence-building digital tools and databases, search for help, review our business information, or share your concerns and questions. A secure, online source for increased visibility into your UL project files, product information, documents, samples and services.
Access UL certification data on products, components and systems, identify alternatives and view UL guide information with Product iQ. Providing testing and certification programs for large batteries used in electric vehicles EVs to help foster safety. Our extensive safety science experience eases EV battery development processes for original equipment manufacturers OEMs and battery manufacturers. Battery technologies currently under development are likely to introduce the need for consumers and EV stakeholders to be informed about personal protection, handling electrical grid voltage under the hood, and fire suppression.
The industry continues to develop best practice guidance regarding the safest ways to recharge, or swap, these batteries at home or at public quick charging stations. To address the key industry challenges, we have introduced new testing and certification programs for large batteries:.
The standards were designed jointly with key stakeholders in the EV community to help mitigate the risk of fire and electrical hazards and to enhance the overall safety of batteries for EVs. Our services can help you address the complexities associated with creating, storing and repurposing battery and energy storage products.
Offerings We help you tackle your challenges with offerings tailored to business needs and industry issues, strategic solutions for the most complex problems and services to address specific concerns. Insights Navigate your business in an increasingly complex world with industry leading research and actionable insights from UL.
News Explore our press releases and news updates. Events Connect with us in person or online, around the globe. Resources Explore our business intelligence-building digital tools and databases, search for help, review our business information, or share your concerns and questions. Go to myUL. Industries Overview. Contact us. New requirements for large batteries Battery technologies currently under development are likely to introduce the need for consumers and EV stakeholders to be informed about personal protection, handling electrical grid voltage under the hood, and fire suppression.
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