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School of Biochemistry & Immunology

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Presentation on theme: "School of Biochemistry & Immunology"— Presentation transcript:

1 School of Biochemistry & Immunology
SS 2013 Senior Sophister Class: HEALTH & SAFETY BRIEFING PART 11 Chemical Risk Assessments Dr. Audrey Carroll Main Teaching Lab, Room 3.22, Level 3 Biomedical Science Institute Phone number:

2 WHAT IS A CHEMICAL RISK ASSESSMENT??
A RISK ASSESSMENT IS SIMPLY A CAREFUL EXAMINATION OF WHAT, IN YOUR WORK, COULD CAUSE HARM TO PEOPLE, SO THAT YOU CAN WEIGHT UP WHETHER YOU HAVE TAKEN ENOUGH PRECAUTIONS OR SHOULD DO MORE TO PREVENT HARM (HSE) CHEMICAL RISK ASSESSMENT IS AN ASSESSMENT OF THE RISK FROM CHEMICALS IN THE WORKPLACE TO THE HEALTH AND SAFETY OF PERSONS AND THE AIM IS TO IDENTIFY CONTROL MEASURES WHICH WILL REDUCE THE RISK TO AS LOW A LEVEL AS POSSIBLE RESULT: WRITTEN DOCUMENT WHICH DETAILS THE HAZARDS EXPOSURE LIMITS, CONTROL MEASURES FOR EACH PROCEDURE WHICH INVOLVES THE STORAGE, USE OF TRANSPORT OF HAZARDOUS SUBSTANCES/CHEMICAL AGENTS

3 CHEMICAL RISK ASSESSMENTS-WHAT TO DO???
1: CHECK CHEMICAL INVENTORY IN THE LAB 2: IF CHEMICAL IS NOT ON INVENTORY, PLEASE PUT IT ON 3: PLEASE DOWNLOAD MSDS SHEET FOR CHEMICAL 4: CHECK MSDS SHEET TO SEE IF CHEMICAL IS HAZARDOUS 5: IF CHEMICAL IS HAZARDOUS, A CHEMICAL RISK ASSESSMENT MUST BE DONE

4 School of Biochemistry & Immunology
e.g. CHEMICAL INVENTORY CHEMICAL INVENTORY FOR CHEMICAL CABINETS, TEACHING LAB, SCHOOL OF BIOCHEMISTRY & IMMUNOLOGY 20126 CHEMICAL FORMULA PURCHASE DATE CAS No. SUPPLIER QUANTITY HAZARD SYMBOL STORAGE AREA CLASS MSDS Exposure Route Shipping Name UN Number Class/ Packing Group EXPIRY CHEMICAL CABINET 1 Sulfuric Acid H2O4S (MW: 98.08g/L) Apr-10 Fisher 2.5L C Chemical Cabinet 1 L CAS Inhalation, Ingestion/Contact with skin & eyes SULPHURIC ACID 1830 Class 8/2 2014 Hydrochloric Acid HCl (MW: 36.46g/L) Dec-06 BDH CAS HYDROCHLORIC ACID 1789 Sep-09 Chromosulfuric Acid Nov-05 N/A-mixture Merck 1.0L T, C Ortho-Phosphoric Acid N3PO4 May-08 500ml CAS PHOSPHORIC ACID SOLUTION 1805 Class 8/3 Glacial Acetic Acid C2H4O2 (MW: 60.05g/L) Jan-07 CAS ACETIC ACID, GLACIAL 2789 Class 8 (3)/2 Poassium Dichromate K2Cr2O7, Mr Oct-06 Sigma 25gm O,T+,N PR Chemical store S CAS Potassium dichromate 3086 Class 6.1 (5.1)/1 Two important website that you must adhere too......

5 MSDS Sheets Section 1: Identification of Substance- Product Name
Product Use Supplier Safety Data Sheet Emergency Centre Section 2: Hazard Identification- Classification of Substance Hazardous Labelling (H/P/S Phrases) Section 3: Composition Info on ingredients-Cas No/EC No/ Index No Section 4: First Aid Measures Section 5: Firefighting Measures Section 6: Accidental Release Measures Section 7: Handling and Storage- Safe Handling Safe Storage Specific Uses School of Biochemistry & Immunology, Senior Sophister 2013 H&S Briefing PART II

6 MSDS Sheets Section 8: Exposure Control/Personal Protection
Section 9: Physical & Chemical Properties Section 10: Stability & Reactivity Section 11: Toxicological Info Section 12: Ecological Info Section 13: Disposal Considerations- Waste treatment methods Product/Contaminated Packaging Section 14: Regulatory Info Section 15: Other Info School of Biochemistry & Immunology, Senior Sophister 2013 H&S Briefing PART II

7 SENIOR SOPHISTER CLASS: 2013-2014 HEALTH AND SAFETY GENERAL BRIEFING:
CHEMICAL HAZARDS DANGEROUS TO THE ENVIRONMENT N VERY TOXIC T+ TOXIC T COMPRESSED GASES EXTREMELY FLAMMABLE F+ HIGHLY FLAMMABLE F CORROSIVE C EXPLOSIVE E HARMFUL Xn IRRITANT Xi OXIDISING O HARMFUL Xn TOXIC T School of Biochemistry & Immunology, Senior Sophister 2013 H&S Briefing

8 Protection & Prevention Measures
Chemical Name: Assessor: Location/Room No: Date: CAS NO: Area Hazard Risks Risk Rating Protection & Prevention Measures Additional Measures Storage Use Waste Emergency Procedures In case of Fire: Extinguishing Media: In Case of Accidental Release: Personal Protection Equipment: First Aid: Other Information: Potassium Dichromate Audrey Carroll PR Chemical Stores R45 May cause cancer. R46 May cause heritable genetic damage. R60 May impair fertility. R61 May cause harm to the unborn child. R21 Also harmful in contact with skin. R25 Also toxic if swallowed. R26 Also very toxic by inhalation. R48/23 Also toxic: danger of serious damage to health by prolonged exposure through inhalation. R 8 Contact with combustible material may cause fire. R34 Causes burns. R42/43 May cause sensitization by inhalation and skin contact. R50/53 Very toxic to aquatic organisms, may cause long-term adverse effects in the aquatic environment. High F, Xn, T, C, N Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Avoid contact with skin and eyes. Avoid formation of dust and aerosols.Avoid exposure - obtain special. instructions before use. Provide appropriate exhaust ventilation at places where dust is formed.Keep away from sources of ignition. - No smoking.Keep away from heat and sources of ignition.Normal measures for preventive fire protection F, Xn, T, C, N High Product Burn in a chemical incinerator equipped with an afterburner and scrubber but exert extra care in igniting as this material is highly flammable. Offer surplus and non-recyclable solutions to a licensed disposal. company. Contact a licensed professional waste disposal service to dispose of this material. Contaminated packaging Dispose of as unused product. High F, Xn, T, C, N Special hazards arising from the substance or mixture Potassium oxides, Chromium oxides Wear self contained breathing apparatus for fire fighting if necessary. Use water spray to cool unopened containers. Use water spray, alcohol-resistant foam, dry chemical or carbon dioxide. See MSDS Sheet See MSDS Sheet FIRST AID MEASURES aid measures General advice Consult a physician. Show this safety data sheet to the doctor in attendance. If inhaled If breathed in, move person into fresh air. If not breathing, give artificial respiration. Consult a physician. In case of skin contact. Take off contaminated clothing and shoes immediately. Wash off with soap and plenty of water. Take victim immediately to hospital. Consult a physician. In case of eye contact Rinse thoroughly with plenty of water for at least 15 minutes and consult a physician. If swallowed Do NOT induce vomiting. Never give anything by mouth to an unconscious person. Rinse mouth with water. Consult a physician. 4.2 Most important symptoms and effects, both acute and delayed Ulceration, Material is extremely destructive to tissue of the mucous membranes and upper respiratorytract, eyes, and skin.

9 QUESTIONS ????


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