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  2. Microwave Ovens and their Hazards - Canadian Centre for...

    www.ccohs.ca/oshanswers/phys_agents/microwave_ovens.html

    Part III (Microwave Ovens) of the Radiation Emitting Devices Regulations (C.R.C., C. 1370) specifies the following limits for the leakage radiation at 5 cm from the surface of the microwave oven: 1.0 mW/cm 2 with test load. 5.0 mW/cm 2 without test load. Information about measuring equipment for microwave oven leakage can be obtained from the ...

  3. CCOHS: Radiation - Quantities and Units of Ionizing Radiation

    www.ccohs.ca/oshanswers/phys_agents/ionizing.html

    An old and still popular unit of measuring radioactivity is the curie (Ci). 1 Ci = 37 GBq = 37000 MBq. One curie is a large amount of radioactivity. Commonly used subunits are mCi (millicurie), µCi (microcurie), nCi (nanocurie), and pCi (picocurie). 1 Ci = 1000 mCi; 1 mCi = 1000 µCi; 1 µCi = 1000 nCi; 1 nCi = 1000 pCi.

  4. Microwave Ovens and their Hazards - Canadian Centre for...

    www.ccohs.ca/oshanswers/phys_agents/microwave_ovens.pdf

    the oven is properly maintained." Old or faulty door seals are the most common caus. s of microwave radiation leakage. Mechanical abuse, a build-up of dirt, or wear and tear from continued use can caus. door seals to be less effective.How is the radiati. n measured outside the microwave?Microwave radiation is measured as 'power density' in ...

  5. CCOHS: Ultraviolet Radiation - Canadian Centre for Occupational...

    www.ccohs.ca/oshanswers/phys_agents/ultravioletradiation.html

    In scientific terms, UV radiation is electromagnetic radiation just like visible light, radar signals and radio broadcast signals (see Figure 1). Electromagnetic radiation is transmitted in the form of waves. The waves can be described by their wavelength or frequency and their amplitude (the strength or intensity of the wave).

  6. Hot Environments - Health Effects and First Aid - Canadian Centre...

    www.ccohs.ca/oshanswers/phys_agents/heat/heat_health.html

    As the temperature or heat burden increases, people may feel: Increased irritability. Loss of concentration and ability to do mental tasks. Loss of ability to do skilled tasks or heavy work. In moderately hot environments, the body "goes to work" to get rid of excess heat so it can maintain its normal body temperature.

  7. How to work safely with - Liquefied Petroleum Gas (LPG)

    www.ccohs.ca/oshanswers/chemicals/howto_lpg.html

    Liquefied petroleum gas (LPG) is a mixture of gases or a single gas that has liquefied when under pressure. Usually, LPG contains mainly propane and butane. Propylene and butylene may also be present in some mixtures. LPG does not naturally have an odour, but odorant substances (i.e., volatile mercaptans) are added to warn users about leaks.

  8. How to Work Safely with - Canadian Centre for Occupational Health...

    www.ccohs.ca/oshanswers/chemicals/compressed/compress.html

    2024-10-10. The Canadian Centre for Occupational Health and Safety (CCOHS) promotes a safe and healthy working environment by providing occupational health and safety information and advice.

  9. Exposure to Radiofrequency Energy from Cellular Telephones

    www.ccohs.ca/oshanswers/phys_agents/cellular_telephones.html

    Health Canada continues, and adds the following precautions: "Although the RF energy from cell phones poses no confirmed health risks, cell phone use is not entirely risk-free. Studies have shown that: Using cell phones or other wireless devices can be distracting. Your risk of serious injury may increase if you use these devices while driving ...

  10. Transportation of Dangerous Goods (TDG) - Classification (Road)

    www.ccohs.ca/oshanswers/legisl/tdg/tdg_classification.html

    Classification is defined in Part 1 of the TDG Regulations as: “classification means, for dangerous goods, as applicable, the shipping name, the primary class, the compatibility group, the subsidiary class, the UN number, the packing group, and the infectious substance category.”. Note: This document is a general overview of the TDG ...

  11. CCOHS: Effective Workplace Inspections

    www.ccohs.ca/oshanswers/prevention/effectiv.html

    Through a critical examination of the workplace, inspections help to identify and record hazards for corrective action. Health and safety committees can help plan, conduct, report and monitor inspections. Regular workplace inspections are an important part of the overall occupational health and safety program and management system, if present.