Construction

As used here, construction includes fabrication, assembly, erection, examination and testing of the installation. To assure a system is safely constructed, it is critical that:

• All equipment has been checked to assure it meets the requirements and is installed correctly, and appropriate documentation is provided
• Quality Assurance (QA) procedures have been followed during fabrication and assembly of equipment
• Materials of construction are correct (use of positive material identification is one way of accomplishing this)
  • Verification of metal alloys using x-rays fluorescence or spark emission spectrography is accurate, inexpensive, and fast
  • Consider following the guidance for positive material identification in API Recommended Practice 578

When working in areas where hydrogen or other flammable materials are present, a specific work plan should be developed to mitigate risk. See Working in areas with flammable materials.

To assure the system is constructed in accordance with the design, a construction completion inspection should be conducted. It includes verifying:

• The system is properly integrated into the intended location
• The system is constructed in accordance with the drawings and specifications
• The safety systems and operational systems have been checked to ensure correct functioning
• The system has been checked for mechanical integrity (piping and relief devices supported adequately, examination and leak testing completed)
• The location has proper ventilation and ignition source control
• A review to ensure that the hazard review recommendations have been implemented
• Review and approval by the appropriate agencies and Authorities Having Jurisdiction

Prior to initial operation, the use of an Operational Readiness checklist is recommended. The checklist should include:

• Emergency response, operating and maintenance documentation is completed
  • Emergency Response Plan (ERP) is in place
  • Operating procedures are prepared
  • A maintenance plan is prepared
  • Needed spare parts are available
• Training for emergency responders, operators, and maintenance personnel is completed
• The system has been cleaned and air removed