Worker injured when an unguarded cylinder activated on a hydraulic pumping system
British Columbia employer Canfor Pulp Ltd. has been fined $489,104.10 after one of its workers was injured on the job.
WorkSafeBC attended the company’s worksite in response to an incident in which a worker was injured when an unguarded cylinder activated on a hydraulic pumping system (atmospheric diffuser).
The agency determined that the employer failed to ensure its machinery and equipment were fitted with adequate safeguards to protect workers from hazardous points of operation. This was classified as a high-risk violation.
According to the CCOHS Welding – Storage and Handling of Compressed Gas Cylinders fact sheet, employers must ensure the following measures are in place when compressed gases are used or stored:
- Develop and implement a Safe Operating Procedure (SOP): This procedure must be created by a safety technical specialist and clearly define what constitutes a cylinder being “in storage” versus “in use.”
- Provide required worker training, including WHMIS.
- Maintain an accurate, up-to-date cylinder inventory.
- Control maximum quantities of gases on site in accordance with legislative limits.
- Avoid storing fuel gas cylinders in cabinets, whether enclosed or vented. If security is a concern, use a screened cage with at least two sides 80 % or more open to ensure airflow.
- Monitor storage area gas levels, particularly for flammable gases and oxygen.
- Adhere to firewall specifications and separation distances between incompatible gases, as required by local regulations.
- Secure compressed gas containers and systems against physical damage and tampering.
- Select appropriate outdoor storage locations: Use a well-drained, non-combustible platform (e.g., concrete); avoid hydrocarbon-based asphalt for oxidizers; and avoid exposure to humidity.
- Site storage areas away from vegetated zones—maintain a clear area, commonly a minimum of six metres, from forest or brush, in line with local requirements.
- Ensure indoor storage rooms meet code requirements, including building, electrical, and fire codes.
- Display “No Smoking” signs in both indoor and outdoor storage areas.
- Set and post maximum storage temperatures:
- In use: less than 48.9 °C (120 °F)
- General storage: less than 51.7 °C (125 °F)
- Consider separate securing for each cylinder to prevent falling or toppling when neighbouring cylinders are removed.
