Chemical hazards Flashcards
In regards to Chemical Hazards, what are the various methods of protection referred to as?
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Controls They can be administrative controls (ie permits), engineering controls (ie. ventilation), or wearing PPE
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Where do you find detailed chemical hazard information?
Unit specific chemical inventory lists and MSDS
What is the purpose of the Diamond- shaped symbol in the unit?
to identify equipment containing hazardous materials and to indicate the levels of potential dangers.
What are the 4 colors of the Diamond-shaped symbol and what do they mean?
Health Hazard - Blue Fire Hazard - Red Reactivity - Yellow Special Warning - White
What are the 5 levels of Health Hazard (blue) and what do they mean?
0- Ordinary Combustible Hazards in a fire 1- Slightly Hazardous 2- Hazardous 3- Extreme Danger 4- Deadly
What are the 5 levels of Fire Hazard (red) and what do they mean?
0- Will not burn 1- Will ignite if preheated 2- Will ignite if moderately heated 3- Will ignite at most ambient temperatures 4- Burns readily at ambient conditions
What are the 5 levels of Reactivity (Yellow) and what do they mean?
0- stable and not reactive with water 1- Unstable if heated 2- Violent chemical change 3- Shock and heat may detonate 4- May detonate
What are the special warnings(white).
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OXY - oxidizer
ACID - Acid
ALKALI - alkali
COR - corrosive - use no water BASE- strong base CA - Carcinogen - Radioactive
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What are 7 general control measures that apply to all hazardous materials?
- in designated process areas, wear minimum required approved PPE (FRC, safety glasses, hard hat, foot protection 2. Appropriate eye, skin and respiratory protection for “possible exposure” or “gross exposure” per MSDS 3. During operations involving hazardous materials, avoid contact with eyes, skin and clothing. Avoid breathing vapor and mist. Do not taste or smell a substance to identify 4. Know Locations of nearest safety shower and eyewash station 5. Use the materials under well- ventilated conditions 6. All chemicals should have proper containers, HFR Labels, and be stored in their proper containment area. 7. If a condition or action appears unsafe, it probably is unsafe. When in doubt, use common sense and lean on the side of safety.
What are Chemical Hazards and why are they important to know?
Those materials in a process that present a health and/or physical hazard. Knowledge of hazardous chemicals and protection during their use will help to control the hazards.
What is Process Safety Management (PSM)?
The effective management of all aspects of safety for both personnel and property in facilities that handle highly hazardous chemicals. Its a highly dynamic condition involving the people, equipment, materials, and technologies that comprise a facility.
What is the purpose of PSM?
To prevent the occurrence of or minimize the consequences of catastrophic releases of toxic, reactive, flammable, or explosive chemicals.
What are the Health and safety benefits of PSM
- fewer fatalities - fewer injuries - fewer lost workdays - improved ergonomics - improved morale
What are the Economic benefits of PSM?
- enhanced productivity - decreased labor turnover - More efficient use of space, labor, and equipment - integrated approach to process design, construction, operation, modification, maintenance, and training - greater consistency in product quality - improved operations
What are the Environmental benefits of PSM?
- Fewer releases of toxic solids, liquids, and gases into the environment
