UL: The standard in safety

摘要

After 100 years as the leading safety testing and certification organization, Underwriters Laboratories~R is synonymous with safety. UL's thoroughness, precision and independence and its reputation for integrity and confidence have made its Mark the most recognized and trusted symbol of safety. Working with more than 72,000 customers in 99 countries, UL helps enhance safety on a global scale. UL's services include national and international safety certification, performance testing, EMC, NEBS, environmental and public health, commercial inspection and testing, consulting, and training.