UL 9540 2023 New Version Amendment
UL 9540 2023 New Version Amendment,
UL 9540,
▍What is WERCSmart REGISTRATION?
WERCSmart is the abbreviation of World Environmental Regulatory Compliance Standard.
WERCSmart is a product registration database company developed by a US company called The Wercs. It aims to provide a supervision platform of product safety for supermarkets in US and Canada, and make product purchasing easier. In the processes of selling, transporting, storing and disposing products among retailers and registered recipients, products will face increasingly complicated challenges from federal, states or local regulation. Usually, the Safety Data Sheets (SDSs) supplied along with the products do not cover adequate data of which information shows compliance with laws and regulations. While WERCSmart transforms the product data to that conforming to laws and regulations.
▍Scope of registration products
Retailers determine the registration parameters for each supplier. Following categories shall be registered for reference. However, the list below is incomplete, so verification on registration requirement with your buyers is suggested.
◆All Chemical Containing Product
◆OTC Product and Nutritional Supplements
◆Personal Care Products
◆Battery-Driven Products
◆Products with Circuit Boards or Electronics
◆Light Bulbs
◆Cooking Oil
◆Food dispensed by Aerosol or Bag-On-Valve
▍Why MCM？
● Technical personnel support: MCM is equipped with a professional team who studies SDS laws and regulations for long. They have in-depth knowledge of the change of laws and regulations and have provided authorized SDS service for a decade.
● Closed-loop type service: MCM has professional personnel communicating with auditors from WERCSmart, ensuring smooth process of registration and verification. So far, MCM has provided WERCSmart registration service for more than 200 clients.
On June 28th 2023, the standard for energy storage battery system ANSI/CAN/UL 9540:2023：Standard for Energy Storage Systems and Equipment issues the third revision. We will analyze the differences in definition, structure and testing.For Battery Energy Storage System (BESS), the enclosure should meet UL 9540A Unit Level testing.Gasket and seals can comply with UL 50E/CSA C22.2 No. 94.2 or comply with UL 157 or ASTM D412.If BESS uses metallic enclosure, that enclosure should be noncombustible materials or comply with UL 9540A unit.ESS enclosure should have certain strengthen and rigidity. This can be proved by passing test of UL 50, UL 1741, IEC 62477-1, UL 2755, ISO 1496-1 or other standards alike. But for ESS less than 50kWh, the strengthen of enclosure can be evaluated through this standard.Walk-in ESS unit with explosion protection and venting.
ESS with lithium-ion batteries capacity of 500 kWh or greater should be provided with an external warning communication system (EWCS) so as to give an advance notification to operators of a potential safety issue.Installation of EWCS should reference NFPA 72. Visual alarm should be in accordance with UL 1638. Audio alarm should be in accordance with UL 464/ ULC525. The maximum sound level for audio alarms shall not exceed 100 Dba.
