HAS 222 Risk Assessment

Why is it important? Human Economical Legal

Risk analysis Less dangerous (must be renewed after 6 year) Very dangerous (must be renewed after 2 year)

Risk analysis Hazard: Potential to cause harm Risk: The likelihood of that the harm from a particular hazard is realized

What is Risk? Risk = L x S L: Likelyhood of occurence S: Impact severity of occurence RISK: Risk is avaluated as the product of likelihood of occurence and impact severity of occurence of the event. LIKELIHOOD RİSK IMPACT

Risk Terminology Risk assessment process starts with the question; “What can go wrong?” Risk assessment consist of; Hazard identification Event probability assessment Consequence assessment

Hazard Identification Physical hazards: Noise Vibration High or low pressure Radiation Heat or cold Sharp objects, etc. Chemical hazars: All chemicals Biological hazards: Microorganisms Electrical hazard

Risk Analysis Methods 100’s of methods Qualitative Quantitative Combined

Risk Analysis Methods Check- List Matrix Fine Kinney Primary method Matrix The most widespread method. Fine Kinney Modified matrix method including three parameters probability, frequency and severity of consequence. Hazard and Operability Studies (HAZOP) Have been used extensively in the chemical industries to examine what impact deviations can have on a process. Failure More and Effect Analysis (FMEA) Used to determine where failures can occur within hardware and process systems and to assess the impact of such failures. Fault Tree Analysis (FTA), Event Tree Analysis (ETA) and Cause/Consequence Analysis (CCA) Systematic, logical developments of many contributing factors to one unwanted event.

Checklist Aims to check whether the equipments are complete and the system is working properly Consist of questions to be answered as Yes or No Should also include the preventive measures

Ministry of Labor and Social Security General Directorate of Occupational Health and Safety Examples of Risk Analysis Guidelines   "Taksi ile Yolcu Taşımacılığında Risk Değerlendirmesi Rehberi" için TIKLAYINIZ. "Çağrı Merkezlerinde Risk Değerlendirmesi Rehberi" için TIKLAYINIZ. “Diş Klinik ve Muayenehanelerinde Risk Değerlendirmesi Rehberi" için TIKLAYINIZ. "Kasaplarda Risk Değerlendirmesi Rehberi" için TIKLAYINIZ. "Kuru Temizlemecilerde Risk Değerlendirmesi Rehberi" için TIKLAYINIZ. "Mutfak Lokanta Pastanelerde Risk Değerlendirmesi Rehberi" için TIKLAYINIZ. "Ofislerde Risk Değerlendirmesi Rehberi" için TIKLAYINIZ. "Apartmanlarda Risk Değerlendirmesi Rehberi" için TIKLAYINIZ. "Kuaförlerde Risk Değerlendirmesi Rehberi" için TIKLAYINIZ. "Genel Yolcu Taşımacılığı Risk Değerlendirmesi Rehberi" için TIKLAYINIZ. "Özel Güvenlik Faaliyetleri Risk Değerlendirmesi Rehberi" için TIKLAYINIZ.

Checklist for Dental Clinics Konu Başlığı Kontrol Listesi Evet Hayır Alınması Gereken Önlem Sorumlu Kişi Tamamlanacağı Tarih GENEL Zemin kayma veya düşmeyi önleyecek şekilde uygun malzeme ile kaplanmış ve iç ve dış zeminler (salon girişi, merdivenler vs.)düzenli olarak kontrol ediliyor mu?   Zeminde çökme, erime vb. deformasyonlar var mı? Aynalar da dâhil cam yüzeyler (cam aksamlı mobilyalar, kapı, pencere vb.) uygun şekilde monte edilmiş, yüzeyler üzerinde kırık ve çatlak gibi hatalar bulunuyor mu? Merdiven genişlikleri ve basamak yükseklikleri uygun mu? Merdivenler boyunca tırabzanlar mevcut mu? Tırabzan ayakları arasında uygun aralıklarla dikmeler veya düşmeyi önleyecek kapalı bloklar mevcut mu? Temizlik yapılan alanda kaymayı önlemek için gerekli önlemler alınıyor mu? Bütün alanlar iyi aydınlatılmış, pencere alanı yeterince büyük ve doğal aydınlatmadan yeterince faydalanılıyor mu? ÇSGB, İSG Gn.Md.

Matrix Method This method forms the basis for other methods. This is a combined risk analysis method. Usually applied as 3×3 ya da 5×5 matrixes. A risk matrix is used to define the level of risk by considering the category of probability or likelihood against the category of consequence severity. For each of the hazard, assign a rating to its likelihood and severity. Then locate it in the appropriate position in your risk assessment matrix. Preventive measures are recommended. 

Probability Score Probability Description 1 Rare This will probably never happen 2 Unlikely Do not expect it to happen but it is possible 3 Possible Might happen occasionally 4 Likely Will probably happen 5 Very Likely Will undoubtedly happen

Consequence Severity Score Severity Description 1 Insignificant Not likely to cause injury or ill-health 2 Minor Injury or ill-health requiring first-aid only (includes minor cuts and bruises, irritation, ill-health with temporary discomfort). 3 Moderate Injury requiring medical treatment or ill-health leading to disability 4 Major Serious injuries or life-threatening occupational disease 5 Extreme Fatality, fatal diseases or multiple major injuries.

Risk Matrix (5×5)

Risk Matrix (5×5)

Risk Control After risk analysis appropriate measures should be taken to reduce high risk into an acceptable level. General Control Engineering control (physical change) Work practice control (way of doing a job) Personal Control Personal protective equipment

General Control Measures Risk elimination (if possible) Replacement with the safe one –or less hazardous Insulation Ventilation (general/local) Local lightening Machine guarding Warning signs Administrative measures

Personal Control Measures Job suited person selection, training, inspection Initial health control Periodical health control Personal protective equipment