What Are The 7 Hazardous Substances?

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What are the seven main groups of hazardous substances?

There are seven groupings of hazardous substances including harmful, dangerous to the environment, corrosive, flammable, explosive, toxic and oxidising.

What are the 10 hazardous substances?

  • Arsenic. Physical state: Solid.
  • Lead. Physical state: Solid.
  • Benzene. Physical state: Liquid.
  • Chromium. Physical state: Solid.
  • Toluene. Physical state: Liquid.
  • Cadmium. Physical state: Solid.
  • Zinc. Physical state: Solid.
  • Mercury. Physical state: Liquid.
  • What are the 9 main groups of hazardous substances?

    The 9 Classes of Dangerous Goods

  • Explosive materials (Class 1)
  • Gases (Class 2)
  • Flammable Liquids (Class 3)
  • Flammable Solids (Class 4)
  • Oxidising Substances and Organic Pesticides (Class 5)
  • Toxic and Infections Substances (Class 6)
  • Radioactive Materials (Class 7)
  • Corrosive Materials (Class 8)
  • What are the 6 categories of hazardous materials?


  • Class 1: Explosives.
  • Class 2: Gases.
  • Class 3: Flammable Liquids.
  • Class 4: Flammable Solids.
  • Class 5: Oxidizing Substances, Organic Peroxides.
  • Class 6: Toxic Substances and Infectious Substances.
  • Class 7: Radioactive Material.
  • Class 8: Corrosives.
  • What are the four types of physical hazards?

    Physical hazards include ergonomic hazards, radiation, heat and cold stress, vibration hazards, and noise hazards.

    What is a Class 4 Division 4.1 hazardous material?

    Class 4 dangerous goods include flammable solids, substances liable to spontaneous combustion and substances which, in contact with water, emit flammable gases. There are three sub-divisions: Division 4.1: Flammable solids.

    What is a Class 8 product?

    Class 8 substances (corrosive substances) are substances which, by chemical action, will cause severe damage when in contact with living tissue, or, in the case of leakage, will materially damage, or even destroy, other goods or the means of transport.

    What is the most hazardous substance?

    1. Botulinum toxin. Scientists differ about the relative toxicities of substances, but they seem to agree that botulinum toxin, produced by anaerobic bacteria, is the most toxic substance known. Its LD50 is tiny – at most 1 nanogram per kilogram can kill a human.

    What are hazardous substances in the workplace?


  • biological agents - such as fungi, bacteria, viruses.
  • natural substances - such as grain, flour or enzyme dusts.
  • substances generated by work - such as soldering or welding fumes, or wood dust.
  • chemical products used or produced at work - such as adhesives or cleaning agents.
  • What are 5 examples of unsafe conditions in the workplace?

    Examples of unsafe working conditions include:

  • Slippery/ debris littered floors.
  • Improperly secured machinery.
  • Poorly maintained equipment.
  • Bad lighting.
  • Dangerous stairways.
  • Large obstacles left in the path of workers or blocking exits.
  • Trailing extension cords.
  • What is a Class 8 hazardous material?

    Class 8 dangerous goods are corrosive substances. There is no sub-division. Corrosive substances may cause severe damage when in contact with living tissue such as skin or damage or destroy surrounding materials in case of leakage.

    What is a Class 6.1 hazardous material?

    Division 6.1 includes toxic substances, poisons, and irritating material. Examples of Division 6.1 materials (not all of which are mailable) include bromobenzyl cyanide, methyl bromide, motor fuel anti-knock mixtures, and tear gas.

    How many classes of hazards are there?

    The DOT separates hazardous materials into nine different categories or “hazard classes.” They are defined by specific hazardous properties and have distinct regulatory requirements for packaging, markings, and labels.

    How many divisions are there in class 5?

    345.1 Definition. Hazard Class 5 consists of two divisions: Division 5.1, Oxidizing Substances.

    Is Class 8 a hazmat?

    Hazard Class 8 is for corrosive materials, defined as substances that can cause significant harm to living tissue and/or corrode steel and aluminum if they leak. Some common goods you'll find in Class 8 include: Strong acids, such as sulfuric or hydrofluoric acid. Strong bases, such as sodium hydroxide (lye)

    What is a Class 5 Oxidizer?

    Class 5.1 oxidizers are materials, which by yielding oxygen, can cause or enhance the combustion of other materials. Loosely speaking, they're catalysts to setting something else on fire—whether to good or bad effect. They're used as chemical accelerators, activators, catalysts, curing agents, hardeners, and more.

    Is Class 9 a hazmat?

    In the classification system of the U.S. Department of Transportation's (DOT) hazardous materials, Class 9 hazmats are those that don't come under any of the other hazmat classes (e.g., explosives, flammables). But, they are still hazardous materials and there is a placard for them.

    What is Class 9 DG?

    Class 9 - Miscellaneous Dangerous Goods

    Miscellaneous dangerous goods are substances and articles which during transport present a danger or hazard not covered by other classes.

    What class is flammable liquids?

    Flammable liquids are classified by NFPA as Class I, which are further sub- classified, based upon additional criteria that affect fire risk, as Class IA, Class IB and Class IC - these liquids have flash points below 100 ºF (37.8 ºC) or less.

    What are hazardous chemicals?

    Hazardous chemicals are substances that can cause adverse health effects such as poisoning, breathing problems, skin rashes, allergic reactions, allergic sensitisation, cancer, and other health problems from exposure. Examples of hazardous chemicals include: paints. drugs.

    What are the different types of chemicals?

    Types of Chemicals

  • Corrosives.
  • Oxidisers.
  • Flammables.
  • Water Reactives.
  • Pyrophorics.
  • Toxics.
  • Is Covid 19 a hazard?

    Certain people are at higher risk of developing more serious complications from COVID-19, including older adults and those with underlying medical conditions such as heart or lung disease, chronic kidney disease requiring dialysis, liver disease, diabetes, immune deficiencies, or obesity.

    What are the two types of hazards?

    Hazardous products are divided into two hazard groups: physical hazards and health hazards. The two hazard groups are further divided into hazard classes. Each hazard class contains at least one category.

    How many hazardous substances are there?

    The NIOSH Pocket Guide to Chemical Hazards contains information on several hundred chemicals commonly found in the workplace; The Environmental Protection Agency's (EPA's) Toxic Substance Control Act (TSCA) Chemical Substances Inventory lists information on more than 62,000 chemicals or chemical substances; EPA's

    Which hazards are covered under COSHH?

    COSHH covers

  • chemicals.
  • products containing chemicals.
  • fumes.
  • dusts.
  • vapours.
  • mists.
  • nanotechnology.
  • gases and asphyxiating gases and.
  • What are the 5 major categories of control measures?

    Key points. NIOSH defines five rungs of the Hierarchy of Controls: elimination, substitution, engineering controls, administrative controls and personal protective equipment. The hierarchy is arranged beginning with the most effective controls and proceeds to the least effective.

    How do you identify a hazardous substance?

    To identify if a substance is hazardous, check the product's container label and/or the SDS which is available from the supplier. If a product is not classified as a hazardous chemical under the Work Health and Safety Act 2011, a SDS is not required and therefore may not be available.

    What are hazardous substances in health and social care?

    Hazardous substances found in a health and social care environment may include: Cleaning materials. Disinfectants. Body fluids.

    Common hazardous substances in the workplace include:

  • acids.
  • caustic substances.
  • disinfectants.
  • glues.
  • heavy metals, including mercury, lead, cadmium and aluminium.
  • paint.
  • pesticides.
  • petroleum products.

  • Class 1: Explosives.
  • Class 2: Gases.
  • Class 3: Flammable Liquids.
  • Class 4: Flammable Solids.
  • Class 5: Oxidizing Substances, Organic Peroxides.
  • Class 6: Toxic Substances and Infectious Substances.
  • Class 7: Radioactive Material.
  • Class 8: Corrosives.
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