List a precautionary step in welding operations as discussed in API 1104.

Using personal protective equipment (PPE) is a fundamental precautionary step in welding operations as highlighted in API 1104. This practice is crucial for ensuring the safety of welders and those working nearby. PPE includes items such as helmets with appropriate filters, gloves, flame-resistant clothing, and safety boots. These protective measures shield the welder from various hazards present in the welding environment, including harmful ultraviolet and infrared radiation, sparks, and heat.

The importance of PPE is underscored in welding spaces where exposure to hazardous materials, fumes, and extreme temperatures is a common risk. By wearing the proper equipment, welders can significantly reduce the risk of injuries and illnesses, contributing to a safer work environment.

While other options like working in well-ventilated areas and performing routine maintenance on equipment are important practices for overall safety and efficiency in welding, they do not emphasize the direct personal protection that PPE provides. Documenting all welding procedures is vital for quality assurance and compliance but does not directly pertain to immediate personal safety.