1. Frequencies Estimation Ricki M Mulia, ST. MSc

2. Unsafe Act Unsafe Condition HAZARD EXPOSURE Penyakit Akibat kerja RISK Kecelakaan kerja Higiene Industri Kesehatan Kerja Keselamatan Kerja Ricki M. Mulia

3. RISK MANAGEMENT Hazard Analysis Risk Assessment CHECKLIST JSA DOW FIRE & EXPLOTION INDEX PHA HAZOP FMEA Risk Control Engineering control Administrative control Personal Protective Equipment Ricki M. Mulia Qualitative Quantitative

4. Risk assessment Defenition : The process by which the results of a risk analysis (I.e. risk estimates) are used to make decisions, either through relative ranking of risk reduction strategies or through comparison with risk targets. System Description Hazard Identification Consequence estimationFrequency estimation Total assessed risk Risk targetsAccept risk?Modify system Proceed No

5. FREQUENCY ESTIMATION Ricki M. Mulia Fault Tree and their analysis : Event Tree and their analysis : A Fault Tree Analysis (FTA) is a logical representation of a nominated event in terms of basic acts or failures. There are 2 basic logic gates or structure; An Event Tree Analysis (ETA) consider the possible outcomes from a particular nominated event by tracing the logical outcomes. ‘OR’ gate means that cause 1 or 2 or 3 will mean event T will occur ‘AND’ gate means that cause 1,2 and 3 must occur for event T to occur

6. Ricki M. Mulia Top Event AND Basic Cause Intermediate Cause OR Basic Cause Basic Cause Disaster FTA ETA FREQUENCY ESTIMATION

7. FAULT TREE ANALYSIS Ricki M. Mulia

8. EVENT TREE ANALYSIS Ricki M. Mulia

9. Terimakasih…