Frequently Asked Questions
Construction Safety Topics

What are the storage requirements for acetylene and oxygen compressed gas cylinders on a construction site?

Except when in use, oxygen cylinders must be separated from fuel-gas cylinders or combustible materials (especially oil or grease), by a minimum distance of 20 feet (6.1 m) or by a noncombustible barrier at least 5 feet (1.5 m) high with a fire-resistance rating of at least one-half hour.  Store cylinders upright and secure them with a chain, strap, or cable to a stationary building support (e.g., structural beam).  Regulators must be removed and valve protection caps in place and secured whenever cylinders are not in use.

Inside of buildings, cylinders must be stored in a well-protected, well-ventilated, dry location.  Compressed gas cylinders are to be stored in assigned places away from elevators, stairs, or gangways. Assigned storage places shall be located where cylinders will not be knocked over or damaged by passing or falling objects, or subject to tampering by unauthorized persons. Cylinders shall not be kept in unventilated enclosures such as lockers or cupboards.

What should I do if I see dust coming from the construction areas into corridors or other areas?

Contractors are required to provide dust barriers to contain construction dust inside the work area. Sometimes, even with precautions in place, dust gets outside the work site into adjacent occupied areas. If you notice dirt or dust coming from a construction area, please contact EHS to report the condition. EHS will conduct an assessment of the condition and follow up with the contractor representatives and WCMC project manager to ensure the issue is resolved.

What is ASHRAE 110 fume hood certification and who can provide ASHRAE 110 certification?