Occupational Safety and Exposure Controls
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Questions and Answers

What is the purpose of exposure controls in the workplace?

  • To establish aesthetic standards for chemical storage
  • To minimize the risk of chemical and biological exposure (correct)
  • To create a checklist for material disposal
  • To ensure that all materials are labeled clearly

    • Which property is commonly used to assess the flammability of a substance?

  • Auto-ignition temperature (correct)
  • Viscosity
  • Relative density
  • Melting/freezing point

    • What is the significance of the partition coefficient in chemical properties?

  • It indicates how a substance separates between two immiscible solvents (correct)
  • It measures the volatility of a compound
  • It is used to evaluate the freezing point of materials
  • It determines the color of a substance under different conditions

    • Which of the following is NOT typically included in toxicological information?

    <p>Effective storage temperature</p> Signup and view all the answers

    What role does reactivity play in the stability of a chemical?

    <p>Predicts the likelihood of hazardous reactions</p> Signup and view all the answers

    Which component is essential for evaluating the physical properties of a chemical?

    <p>Initial boiling point/boiling point range</p> Signup and view all the answers

    What should be considered when assessing the environmental impact of a chemical?

    <p>Decomposition products</p> Signup and view all the answers

    Which of the following items is generally included in the section related to personal protective equipment?

    <p>Recommended protective clothing types</p> Signup and view all the answers

    What is the primary purpose of labels on hazardous materials?

    <p>To provide information regarding the hazards</p> Signup and view all the answers

    Which of the following is NOT a responsibility of suppliers under WHMIS?

    <p>Educating employees on safe work procedures</p> Signup and view all the answers

    What do Safety Data Sheets (SDS) provide?

    <p>Supplementary information to hazards on labels</p> Signup and view all the answers

    Which of the following responsibilities falls under the employer's duties in WHMIS?

    <p>Providing access to SDS's</p> Signup and view all the answers

    What is one aspect of employee responsibilities under WHMIS?

    <p>Following safe work procedures</p> Signup and view all the answers

    Hazardous products are defined based on criteria from which regulation?

    <p>Federal Hazardous Products Regulation</p> Signup and view all the answers

    Which of the following is NOT categorized as a main element of WHMIS?

    <p>Guidelines</p> Signup and view all the answers

    What is the primary purpose of WHMIS?

    <p>To inform workers about hazardous materials used in the workplace</p> Signup and view all the answers

    Which of the following is NOT part of the GHS?

    <p>Economic Hazards</p> Signup and view all the answers

    Which statement is true regarding WHMIS responsibilities?

    <p>Suppliers, employers, and employees share responsibilities.</p> Signup and view all the answers

    Which stakeholder is NOT involved in the creation of WHMIS?

    <p>Local Communities</p> Signup and view all the answers

    What is the intended effect of WHMIS on worker safety?

    <p>To create a safer workplace through education on hazards</p> Signup and view all the answers

    Which component of WHMIS helps in understanding the hazards associated with materials?

    <p>Safety Data Sheets</p> Signup and view all the answers

    What right does WHMIS ensure for workers?

    <p>The right to know about safety and health hazards</p> Signup and view all the answers

    What is one of the main goals of the GHS?

    <p>To standardize international communication about hazards</p> Signup and view all the answers

    What aspect of WHMIS does the acronym WHMIS 2015 refer to?

    <p>The most recent update to Canada's WHMIS</p> Signup and view all the answers

    Which category represents the highest level of hazard?

    <p>Category 1</p> Signup and view all the answers

    What hazard class is indicated by the exclamation mark pictogram?

    <p>Acute toxicity</p> Signup and view all the answers

    Which of the following is NOT a physical hazard class represented by the flame pictogram?

    <p>Corrosive to metals</p> Signup and view all the answers

    What does a lower category number indicate regarding hazard classification?

    <p>It indicates a higher hazard.</p> Signup and view all the answers

    Which symbol specifically represents biohazardous infectious materials in Canada?

    <p>Biohazard symbol</p> Signup and view all the answers

    What are flammable solids?

    <p>Products that can ignite easily and cause explosion hazards</p> Signup and view all the answers

    Which class of hazards do organic peroxides fall under?

    <p>Oxidizing agents</p> Signup and view all the answers

    What category is assigned to corrosive materials that cause serious eye damage?

    <p>Category 1</p> Signup and view all the answers

    Which of the following is a characteristic of Types A and B in self-reactive substances?

    <p>They must always appear with a flame pictogram.</p> Signup and view all the answers

    What is the primary risk associated with self-reactive substances?

    <p>They may react violently under certain conditions</p> Signup and view all the answers

    Which hazard class is associated with respiratory or skin sensitization and is indicated by the exclamation mark?

    <p>Category 1</p> Signup and view all the answers

    What defines a simple asphyxiant?

    <p>A gas that displaces air and can lead to suffocation</p> Signup and view all the answers

    For products that emit flammable gases upon contact with water, what category do they belong to?

    <p>Category 1, 2, and 3</p> Signup and view all the answers

    What distinguishes pyrophoric liquids from other substances?

    <p>They ignite automatically when exposed to air</p> Signup and view all the answers

    Which pictogram represents the hazard of skin corrosion?

    <p>Corrosion</p> Signup and view all the answers

    How do self-heating substances typically pose a hazard?

    <p>They can ignite after a duration of time in air</p> Signup and view all the answers

    What effect do oxidizing agents have when in contact with flammable materials?

    <p>They can cause a fire or intensify an existing one</p> Signup and view all the answers

    Which of the following describes combustible dust?

    <p>Particles that can catch fire or explode if suspended in air</p> Signup and view all the answers

    What risk do gases under pressure pose?

    <p>They can cause severe burns and potential explosions</p> Signup and view all the answers

    Which characteristic defines substances that react with water to release flammable gases?

    <p>They potentially create fire hazards upon exposure to water</p> Signup and view all the answers

    Study Notes

    Exposure Controls and Personal Protection

    • Safe handling procedures are critical for mitigating risks associated with chemicals and biological exposures.
    • Occupational exposure information includes control mechanisms to prevent overexposure.
    • Incompatible materials must be identified to avoid dangerous reactions.
    • Engineering controls provide solutions like ventilation to minimize exposure.
    • Personal protective equipment (PPE) recommendations guide the selection of suitable gear.

    Chemical Properties

    • Upper flammable/explosive limits indicate the concentration range for ignitable mixtures.
    • Vapour pressure and density influence the behavior and risks associated with chemical substances.
    • Relative density provides a comparison of the density of a substance with that of water.
    • Solubility in water impacts how chemicals interact in environments.
    • Partition coefficient gives insight into the tendency of a substance to distribute between phases (e.g., water and fat).
    • Auto-ignition and decomposition temperatures highlight conditions that can lead to ignition or breakdown.
    • Viscosity affects the flow and handling characteristics of substances.

    Stability and Reactivity

    • Assessing reactivity is important for anticipating hazardous reactions under specific conditions.
    • Stability indicates how well a substance maintains its form over time.
    • Undesirable conditions such as shock or light exposure can impact material integrity.
    • Potential decomposition products must be evaluated for safety.

    WHMIS (Workplace Hazardous Materials Information System) 2015

    • WHMIS is Canada’s national hazard communication system, designed to inform about hazardous products in the workplace.
    • The system emerged from a collaborative effort between industry and governments to promote worker safety.
    • Every worker has a right to know about potential health and safety hazards in their workplace.
    • The aim is to reduce injuries and illnesses linked to hazardous materials.

    GHS (Globally Harmonized System)

    • GHS aims to standardize communication about hazardous products internationally.
    • It includes classification for physical, health, and environmental hazards.
    • Canada’s WHMIS 2015 responds to GHS by implementing Hazardous Products Regulations for effective communication related to chemical hazards.

    Components of WHMIS 2015

    • Labels on hazardous materials provide immediate hazard information.
    • Safety Data Sheets (SDS) offer detailed data about hazards and safe handling practices.
    • Education and training emphasize the importance of proper use of information for safe product handling.

    Responsibilities under WHMIS

    • Suppliers are responsible for classifying, labeling products, and preparing SDS.
    • Employers need to provide access to information, train workers, and implement safety measures.
    • Employees are responsible for participating in training and following prescribed safety procedures.

    Hazard Definitions

    • Hazardous products are those that meet criteria for one or more GHS hazard classes.
    • Health hazards may include health risks from repeated exposure, including injury or death.

    GHS Hazard Classes

    • Physical hazards include flammable gases, liquids, solids, oxidizing substances, and gases under pressure.
    • The hydrogen peroxide class and various flammable categories indicate product volatility and risk of fire.
    • Environmental hazards, while not adopted in Canada, may still be communicated on labels and SDS.

    GHS Pictograms

    • Pictograms help in quick hazard assessment and are displayed on labels and SDS.
    • Different pictograms represent specific hazard classes and categories, facilitating easy recognition.
    • Specific symbols include corrosion, flame, gas cylinder, and others indicating various risks.

    Corrosive and Flammability Hazard Classes

    • Corrosive products may harm metals, skin, or eyes upon contact.
    • Flammable materials present risks for ignition; classifications range from gases to solids based on flammability characteristics.
    • Pyrophoric substances ignite spontaneously in air, while self-heating materials can ignite after some time.

    Summary

    • Understanding chemical properties, exposure controls, and hazard classifications under WHMIS 2015 and GHS supports safe work environments.
    • Knowledge of proper handling, recognition of hazards, and adherence to compliance are fundamental for safety in workplaces handling hazardous materials.

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    Description

    This quiz covers essential topics related to occupational safety, focusing on exposure controls and personal protection. It includes information on safe handling, prescribed storage methods, and recommendations for personal protective equipment. Prepare to assess your knowledge on managing chemical and biological exposures in the workplace.

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