Which of the following standards is recognized for safety in electrical devices?

The standard recognized for safety in electrical devices is UL, which stands for Underwriters Laboratories. This organization is specifically dedicated to promoting and ensuring the safety of various types of products, including electrical devices. UL testing involves rigorous evaluation processes to certify that the products meet predefined safety standards.

When products carry the UL mark, it signifies that they have been tested and verified for safety in terms of electrical efficiency and risk of fire or shock hazards. This recognition is critical for manufacturers and consumers alike as it builds trust in the safety of the electrical devices being used.

In contrast, ISO (International Organization for Standardization) provides international standards across a broad range of sectors but is not solely focused on safety. OSHA (Occupational Safety and Health Administration) is involved in ensuring workplace safety and health regulations rather than certifying individual electrical devices. ASTM (American Society for Testing and Materials) develops voluntary consensus technical standards for a wide variety of materials but does not have a primary focus on electrical safety standards like UL does.