WELCOME TO SITP PRESENTATION BY LOTUS Let OurTeam Uphold Safety IMPLEMENT MEASURES TO ENHANCE GAS CYLINDER HANDLING SAFETY Advisors/Facilitators: Leader : Mr. Teo Hoon Hwee Prof Oh Choo Hiap (HOD) Members :Mrs. Lee Soo Mien Asst Prof C H Sow Mr. Wu Tong Meng A/Prof Thomas Osipowicz Mr. Ng Tong Hoe Asst Prof Yan Jie Mr. Lim Bun Siang Asst Prof R Mahendiran Mr. Wong How Kwong A/Prof Ji Wei Mr. Choo Theam Fook Mrs. Phua Swee Wah Mr. Tan Choon Wah HAZARDS Handling of gas cylinders Machine workshop hazards Chemical hazards External ionising radiation hazards Probability (P) – Likelihood of the hazardous outcome (accident/impact/consequence. Take into account the effectiveness of the Risk=(Frequency+Probability)*Severity existing control measures. Frequency (F) – Frequency of task (initiating event) Score Probability Score Frequency Definition 6 Certain 4 Frequent Several times a day 4 Likely 2 Occasional Daily - weekly 2 Possible 1 Seldom Weekly or less often 1 Unlikely Severity (S) – Consequences of the hazardous outcome (accident/impact/consequence). Take into account the Existing control measures Score Injury Health Potential Impact Definition Potential Impact Definition 10 Fatality Death or Alternatively victim with permanent Fatality -Agents which are capable of irreversible damage with serious disability total disability. or death, e.g. corrosives, known human carcinogens -Agents with acute toxic effects (e.g. carbon monoxide 6 Major injury Leading to permanent or partial disability or Major Harm Resulting in permanent partial disability or affecting work performance in unfitness for work or detrimental to the longer term, such as a prolonged absence from work. performance of work over extended period, -Agents which are capable of irreversible damage without serious such as long term absence. disability, e.g. noise, poorly designed manual handling tasks -Notifiable industrial diseases (factories act sixth schedule) 4 Serious injury Detrimental to the performance of present Serious harm Affecting work performance, such as restriction to activities or a need to work, such as curtailment of activities, or take a few calendar days to recover fully some calendar days to recover. -Agents which have limited health effects which are reversible, e.g. irritants, food poisoning, bacteria 2 Minor injury Not detrimental to individual employability or Minor harm Not affecting work performance or causing disability to the performance of present work. Apart -Agents which are not hazardous to human health. No medical leave is from the time when injury is attended to, no needed. medical leave is needed. (First aid) High Intolerable 40-100 Medium Incorporate risk reduction measures 18-36 Low Marriage for continual improvement 2-16 HAZARD ANALYSIS & RISK ASSESSMENT WORKSHEET Originator: Date Justification HAZARD IDENTIFICATION RISK ASSESSMENT Recommended control measures PROB (P) SEV (S) R=(F+P)XS Risk(R) JOBS/ POTENTIAL HAZARDOUS OUTCOME FREQ EXISTING CONTROL TASKS HAZARD (ACCIDENT/IMPACT) (F) MEASURES (INITIATING (LINKED TO PROB, P) EVENT/ASPECT LINKED TO FREQ F) 1) Handling of gas Asphyxiation, fire and 8 No structured control 4 4 48 • Cylinder labels Refer to cylinder explosion, chemical burns measures. • Warning signage appendix from corrosive and toxic • Trolley 3 gas, high pressure, • Macromedia flash cylinder weight SOP 2) Machine Workshop Cuts, amputation and eye 4 Equipment safety devices like 4 4 32 SOP, safety guard, hazards injury shields, PPE, safety cut-off training 3) Chemical hazards Burns, birth defects, 4 Gloves, goggles, fume 2 4 24 Proper label, cancer, death cupboards MSDS, inspection, availability of PPE 4) External Ionising Nausea and cancer 1 Additional Radiation 2 4 12 Additional radiation from Protection Shields radiation shield accelerator constructed during SITP project 2004 S/NO TOPICS RISK RATING RANK Handling of gas cylinders 1 48 HIGH 1 Machine Workshop 2 hazards 32 MEDIUM 2 Chemical hazards 3 24 MEDIUM 3 External Ionising 4 radiation from accelerator 12 LOW 4 • Asphyxiation • Fire and explosion • Chemical burns • Chemical poisoning • High Pressure • Cylinder weight • Asphyxiation – Suffocation, death • Fire and explosion – Burn injuries, death • Chemical burns – Skin/eye burn • Chemical poisoning – Skin/internal injuries • High Pressure – Body injuries • Cylinder weight – External body injuries IMPLEMENT MEASURES TO ENHANCE GAS CYLINDER HANDLING SAFETY • The team approached the problem by using the Plan, Do, Check, Action (PDCA) method in solving the problem. • The Gantt chart was then established. JUN 2005 JUL 2005 AUG 2005 SEP 2005 OCT 2005 NOV 2005 DEC 2005 STAGE SCHEDULE 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4 1. SURVEY OF COMPRESSED GAS USE IN DEPT. 2. GRASP PRESENT STATUS 3. OPTION 1 PLAN 4. OPTION 2 5. OPTION 3 6. ESTABLISH TARGETS ANALYSE PROBLEM & DETERMINE CORRECTIVE ACTION 7. IMPLEMENT DO CORRECTIVE ACTION 8. SURVEY AND CHECK EVALUATE RESULT 9. STANDARDIZE ACTION ACTION Survey of quantity and usage of compressed gas cylinders in the department. Type of Gases No. of No. of Type of Gases No. of No. of cylinders users cylinders users Nitrogen 35 40 Acetylene 4 7 Helium 9 26 Ethylene 1 2 Argon 50 1275 10% Ethylene 90% Ar 1 2 Oxygen 5 17 Ammonia 3 5 Carbon Dioxide 30 1258 5% Ammonia 95% Ar 1 2 20% Carbon Dioxide 1 1 20% Helium 80% Oxy 1 2 Hydrogen 10 7 Sulphur Hexafluoride 2 10 5% Hydrogen 95% Ar 3 2 Nitrogen Oxide 1 2 10% Hydrogen 90% Oxy 1 2 Carbon fluoride 1 2 20% Hydrogen 80% Ar 1 1 Carbon fluoride/Oxy 1 2 Methane 3 2 5% Hydrogen 95% N 1 2 2% Silane 98% Nitrogen 1 2 Total 167 2674 Grasp present status from the survey results obtained from step 1. Potential hazards and safety shortcomings that can be improved upon. • Safety signs and labels • Accessories to ensure cylinder safety • Knowledge on SOP for safe handling and storage • Knowledge on potential hazards of gas cylinder Option 1 – Stop using compressed gases Not acceptable as gases are an essential component in Physics. Option 2 – Restrict the use of gases Not practical as it will affect both teaching and research works. Option 3 – Introduce measures to enhance gas cylinder safety. • Provide cylinder trolley for all users. • Chain up all cylinders. • Ensure proper storage. • Put up “No smoking” signage at the storage area. • Adequate markings and warning labels on cylinders. • Produce an interactive macromedia flash on the SOP and make it easily accessible through the department safety web site. Team aim to achieve the following objectives:. • Provide the necessary infrastructure to minimize risk and enhance gas cylinder safety. • Produce an interactive Macromedia Flash on the SOP for gas cylinder handling and storage. Option 3 was adopted as it was the most effective solution to the problem. The following actions were taken: • Purchase all safety accessories for transportation, usage and storage. • Put up adequate labels and warning signage on cylinders and storage area. • Produce an interactive Macromedia Flash to educate user on the SOP for cylinder handling and storage. • The Macromedia Flash file was uploaded onto the Physics website. http://www.physics.nus.edu.sg/corporate/safety/sop3.swf • Team gauged the impact of the SOP on gas users from their feedback and comments. Standardize action • Ensure existing users constantly keep up with the above safety recommendations. • Encourage new users to view the interactive Macromedia Flash before handling any gas cylinders. • Constant review and updating of SOP. TANGIBLE BENEFITS • Zero accidents • No loss of man hours • Cost savings INTANGIBLE BENEFITS • Peace of mind • Students and staff are protected from potential hazards • LOTUS has achieved its objective in enhancing gas cylinder safety in the department. • We have purchased and installed the necessary accessories to secure the cylinders and enable users to transport and use them safely. • By putting up the interactive Macromedia flash file on the Physics safety website, it enables us to impact a large audience. • The user-friendly video incorporated in the Macromedia flash has also succeeded in drawing the attention of users to the hazards and educating them on the right handling procedures. ACKNOWLEDGEMENT The team would like to thank Thank you Prof Oh (HOD) and Asst Prof Sow (Asst Head) for your attention. LOTUS safety advisers Dean & Vice Dean (Faculty of Science) Office of Health, Safety and Environment (OSHE) Macromedia flash link http://www.physics.nus.edu.sg/corporate/safety/sop3.swf Colleagues LOTUS for their help and strong support.