Page 13 - Process Plant Portable Buildings - CCPS Safe Work Practice

Strategies and Effective Practices

to Manage and Mitigate Hazards

In addition, CIA “Guidance for the Design and Location of Occupied Buildings on Chemical Manufacturing Sites” provides
useful information for assessing toxic release effects, risk mitigation, location, design, and construction details of portable
buildings with toxic release exposure potential.

Principle #5 - Manage Use of Portable Buildings as an Integral Part of Design, Construction, Maintenance and
Operation of Facility

CIA “Guidance for the Design and Location of Occupied Buildings on Chemical Manufacturing Sites” provides useful
information for establishing a facility management system for occupied portable buildings located in or near hazardous
process areas to ensure risk assessments and building integrities are maintained throughout the facility’s life. The
management system should include:
g Documented minimum standards of portable building construction, which may vary based on location and process
hazards type and exposure.
g Criteria for portable building siting acceptable locations.

g Using the facility’s change management program for occupied building changes, including use and occupancy of
buildings; physical changes affecting building integrity; and relevant changes to plant processes, operations and
resulting hazards.
g Conducting periodic re-assessment of occupied portable buildings to evaluate their continued use, essential
personnel, and suitability. Temporary portable buildings located within hazardous process areas should have a
minimum pre-defined life, with time extensions requiring EH&S and facility management review and approval.

g Special training needs and procedures for occupants based on exposure hazards and building design.
g Conducting periodic inspections to verify required building design and safety features as identified in risk
assessments are in place and still fit-for-use. A portable building inspection audit form may be developed that checks
the following items to promote consistent assessment over time:
• The number of occupants and their time inside the building match risk assessment assumptions.
• Regular fire and toxic gas safety practices are in-place and being executed.
• A log of portable building maintenance work is up-to-date and work performed that could impact building integrity
was approved.
• All fire escapes and emergency egresses are unobstructed and per current standards.
• All doors still comply with original requirements, door closers are not overridden, special door seals are not
damaged and properly rated fire doors are used where necessary.
• All windows still comply with original requirements, laminated films on windows are still intact, properly rated
fire-resistant windows are used where necessary, windows in fire walls and SIPs cannot be left open and special
window seals are not damaged.
• Fire walls have no unsealed penetrations.
• Toxic SIP walls have no gaps or holes.
• Mechanical HVAC systems do not have their automated rapid shutdown or recirculation mode bypassed.
• Building internal design and layout still comply with siting assessments, such as furniture, office equipment and
fixtures are secured to prevent projectiles.
• Any other observations, findings and risk reduction recommendations are noted.
g Responsible site personnel should conduct periodic auditing of the portable building management system to verify
that all procedures are being complied with and required management system documentation is properly being used
and closed out.

SAFE WORK PRACTICE, PROCESS PLANT PORTABLE BUILDINGS 10