There are 3 main types of Risk Assessment tools, namely qualitative i.e. using matrices and hazard identification (HAZID) techniques featuring guidewords, semi-quantitative i.e. where word descriptors are associated with numerical ratings and Quantitative Risk Assessment (QRA) which is based on detailed consequence modelling and frequency analysis.Continue Reading

Hazard Identification (HAZID), Assessment of Hazard and Risk, Control of Risk, and Review of the control effectiveness are the principles of Risk Assessment.Continue Reading

Elements of risk assessments are: Identify Hazard Assess Hazard Control Risks Review RiskContinue Reading

A fire alarm system warns people when smoke, fire, carbon monoxide or other fire-related emergencies are detected. These alarms may be activated automatically from smoke detectors, and heat detectors or may also be activated via manual fire alarm activation devices.Continue Reading

Gas detectors can be used to detect combustible, flammable and toxic gases and oxygen depletion. Most devices can measure and detect ammonia, carbon dioxide, nitrogen dioxide, bromine, arsine, ozone, and other gases.Continue Reading

The following standard can be referred to for designing gas detection systems: IEC 60079 Electrical Apparatus for Explosive Gas Atmospheres EEMUA 191 Alarm Systems – A Guide to Design, Management and Procurement EN 50054/56/57/58 Electrical Apparatus for the Detection and Measurement of Combustible Gases ISA RP 12.13.03 Recommended Practice for the Installation, Operation and Maintenance...Continue Reading

Gas mapping is the study and optimisation of toxic/flammable gas detectors to meet set coverage targets.Continue Reading

Gas detectors are required where there is potential for flammable or toxic gas releases to occur.Continue Reading

The objective of the study is to assess the adequacy of the fire and gas detection system based on international codes and standards. The assessment considers the material properties, redundancy provided by the F&G detectors as well as blocking of the line of sight. Where deemed necessary, suitable practicable recommendations will be made to improve...Continue Reading

The Fire & Gas Detection Layout is a plant layout with the number and position of fire and/or gas detectors available on site.Continue Reading