Hazardous Substances and Dangerous Goods Assessments and Audits

The handling, storage and disposal of hazardous substances and dangerous goods are required to be identified, assessed and controlled to ensure workplace health and safety SWE can carry out workplace and construction site audits for both.

Hazardous Substances are materials that have the potential to harm employees during handling, storage or disposal of them at a place of work. Any type of chemical or other substance that can be classified as a Hazardous Substance has the potential to cause harm to persons exposed to these by either causing acute health effects or long term chronic illness. Worst case scenario acute exposure to a hazardous substance may cause a fatality or severe injury. Employees may become exposed to hazardous substances through inhalation of a gas, vapour, mist, aerosol, dust or fume caused by use of the substance. (insert link to gas, vapour, dust and fume), ingestion (eating, drinking) of substance, eyes, throat or skin exposure.


If a substance is deemed to be a hazardous substance according to the Approved Criteria for Classifying Hazardous Substances [NOHSC:1008(2004)] 3rd Edition, the below main steps should be followed as a minimum to ensure employee health and safety is protected:

    Keep a register or manifest of all known hazardous materials used on site
    Obtain a current MSDS for each of the substances and keep on site
    Review MSDS and carry out risk assessment of handling, storage and disposal activities
    Develop procedure for the correct handling and storage of substances
    Ensure that sufficient consultation and training of employees are provided
    Provide all required safety and environmental controls as per MSDS
    Provide health surveillance if required
    Provide appropriate Personal Protective Equipment if still required
    Provide emergency controls for accidental exposure and spills
    Ensure correct storage and labelling of substances and storage points
    Review and monitor the above steps

Value adding:

    Carry out sampling (link to gas, vapour, dust, fume) and assessment to confirm that the above controls are working to purpose.
    The NSW Code of Practice for the Control of Workplace Hazardous Substances(link) provides guideline for the management and control of hazardous substance in the workplace.


Dangerous Goods are chemicals or substances that have the potential to cause acute, immediate damage to life, health, property or natural environments. Some dangerous goods can react and burn violently, explode and/or emit toxic fumes and gasses if mixed together, spilt or involved in fire.
There are 9 Major Classes of Dangerous Goods:

    Class 1 - Explosives
    Class 2 - Flammable Gases
    Class 3 - Flammable Liquids
    Class 4 - Flammable Solids
    Class 5 - Oxidizing Substances and Organic Peroxides
    Class 6 - Toxic and Infectious Substances
    Class 7 - Radioactive Substances
    Class 8 - Corrosive Substance
    Class 9 - Miscellaneous Dangerous Goods


SWE can provide the following services:

    Hazardous Substances Site Survey and Risk Assessments
    Dangerous Goods Audits
    Review of procedures, handling, storage and MSDSs
    Development of Procedures, Management Plans and Systems
    Review and assessment of local exhaust ventilation and HVAC system
    Monitoring and sampling for Gases, Vapours, Mists, Fumes and Dust