What is one critical safety precaution when working with Class B hazardous products?

When working with Class B hazardous products, avoiding static discharge is a crucial safety precaution. Class B materials are typically flammable liquids, and static electricity can easily ignite vapors from these substances, leading to explosions or fires. Static charge can accumulate from various sources, including movement of personnel or equipment, and even from the transfer of liquids. By taking measures to prevent static discharge, such as using anti-static equipment, grounding containers, and ensuring that work areas are free of potential sources of static, workers can significantly reduce the risk of a hazardous incident.

The other options do not effectively address the specific hazards associated with Class B materials. For example, while keeping flammable materials immersed in water might help in some situations, it is not a practical or effective precaution in most scenarios involving Class B products. Similarly, wearing sunglasses does not provide any protection against the risks associated with flammable materials, and using oversized containers does not directly mitigate the danger presented by static electricity.