Hse loss containment manual


















Data-driven insights webinar: Discover new data solutions from HSE that help you solve your health and safety challenges. Industry 4. Web scraping health and safety intelligence phase one report. There are huge volumes of useful health and safety information openly available on the Internet.

Phase one outputs from development of capacities to extract health and safety insights from free-text sources. The text mining project being delivered as part of the LRF Discovering Safety Programme is looking to build upon existing state of the art text mining and natural language processing to develop a suite of text mining and natural language processing tools and techniques for specific use on unstruc. Discovering Safety programme.

Safety Rules should reflect the hazards employees face. Get employee sign-offs on safety rules, policies, participation in safety committee meetings, training, designated medical provider acknowledgments, etc.

Make the program your own. Get Certified. Remote isolation of equipment containing hazardous material is necessary to mitigate a release of hazardous material when there has been loss of containment. Isolation can be accomplished with the appropriate location of remotely operated emergency block valves EBVs. EBVs are manual and remotely operated valves that are designed to isolate hazardous material in the event of an emergency.

The location of the manually activated push button or manual valve should be in an area away from the potential loss of containment so they can be operated safely. Some valves could also serve as the final element in a safety instrumented system and as an EBV.

Each chemical process should be evaluated so that EBVs are properly located. Some companies use the hazard identification process and layer of protection analysis, or other risk assessment methods to identify the need for EBVs.

A more immediate response to potential danger can be provided by EBVs which can be activated by a detection system for example, detectors for a toxic or flammable gas or smoke , situated around a chemical plant.

Advantages of automated activation include:. EBVs may be manually activated by push buttons located at a safe distance from the valve at a location not affected by the loss of containment. Typically the emergency shut off button is a large red, mushroom shaped device. Leak detection may trigger an alarm, usually both in the plant and in the control room, to which the operator can respond by operating the EBV and other systems as necessary.

At a minimum, the MI program must include all relevant equipment in the process area, and inspection tasks must be carried out on a prescribed schedule with aggressive actions to correct any deficiencies, such as out-of-calibration instruments or failed equipment.

During MI testing and maintenance procedures, process safety information PSI and risk management reviews should be evaluated and steps taken to ensure the use of proper pipes, flanges, gaskets, hoses, bolts, and materials of construction. MI should also be considered in the design and testing of safety systems and other process safeguards, as well as during the specification of instrumentation and rotating equipment, such as pumps.

All equipment must be manufactured and maintained to the proper specifications for the intended uses, since equipment failure is a frequent cause of LOC.

An inspection, testing, and preventive maintenance ITPM plan identifies all process equipment and assigns the type and frequency of inspection and testing that should be performed on each piece of equipment An ITPM plan can serve as an effective roadmap to ensure that each piece of equipment is being maintained as needed to minimize the potential for LOC and other adverse events Table 2.

Once the ITPM plan is developed, you can use it as input to a computerized maintenance management system CMMS , as well as to formulate a training program for the personnel performing the maintenance and inspection tasks.

A material verification program MVP is an important management system for reducing the potential for equipment failure. This hose failed because it was constructed of the wrong type of material. The hose failure caused the chlorine release incident described earlier.

Source: 4. An important element of an effective quality assurance program is a material verification program MVP , which can minimize the potential for release of hazardous substances due to nonconforming materials of construction The MVP is an ongoing program that involves many functions and personnel to help ensure the use of proper equipment, including hoses and other often-overlooked parts of piping systems.

It applies to all new construction, replacements, alterations, warehouse transactions, and routine maintenance functions. For example, the chlorine release described earlier originated from a failed hose Figure 4 , and the installed hose failed because it was made of the wrong material of construction.

Despite efforts to reduce the frequency of LOC events, releases and near misses may still occur. Investigate these incidents 1, 2, 15, 16 and understand their causes, then make improvements to prevent or reduce the likelihood of the occurrence of future incidents. Not all small spills, depending on the actual or potential consequences, need to undergo a full incident investigation that involves a root-cause failure analysis, but spill reduction programs that involve recordkeeping and metrics related to the number, locations, causes, and consequences of releases should be considered to help drive continuous improvement.

More serious releases should be investigated thoroughly, both to see if the causes had been previously identified and to identify additional or better safeguards for prevention and mitigation.

Some facilities make fairly frequent equipment and operational changes, which can introduce new LOC hazards or compromise existing safeguards.

All equipment or operational changes must be carefully reviewed and authorized through a management of change MOC system 1, 2 to ensure that:. Pre-startup safety reviews PSSRs should be conducted as part of the MOC process to help ensure that changes are installed and completed correctly, so equipment is ready for safe use.

LOC incidents that involve hazardous chemicals — caused by operating or mechanical failures or other serious events, such as out-of-control reactions — often represent the worst-case events at many types of facilities. The consequences may include serious injuries, significant environmental impacts, lost production, and substantial and costly equipment damage.

An LOC reduction program is the most effective way to establish the chemical and process hazards present, the causes and consequences of releases, and appropriate safeguards. Much can be done to help prevent LOC incidents. Equipment and process design must include hazard assessment and risk management reviews to identify appropriate safeguards e. In addition, effective operational discipline, mechanical integrity, and management of change programs must be in place to help prevent LOC.

Appropriate emergency planning and response systems, including incident investigation, must be in place to help mitigate and learn from LOC events. If hazardous chemicals are present, the possibility of hazardous LOC events will also always be present.

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