Chemical Hazard Classes and Safe Handling Practices

Chemicals play a vital role in our everyday lives, from the cleaning products in our homes to the life-saving medications in hospitals. However, these same chemicals can pose significant safety risks if not handled appropriately. Understanding the different hazard classes of chemicals and implementing safe handling practices is crucial for anyone who works with them, be it in a laboratory, industrial setting, or even at home. Here’s insight from LAFtech – the leading supplier of laboratory equipment in Australia and New Zealand, and exclusive Australian distributor for Air Science, CHCLAB, and EuroClone – BioAir chemical and powder safe handling products.

The Language of Danger: The Globally Harmonised System (GHS)

To ensure consistent communication of chemical hazards across different countries and industries, the Globally Harmonised System of Classification and Labelling of Chemicals (GHS) was established. This system categorises chemicals into various hazard classes based on their physical and health hazards.

Here’s a breakdown of some common hazard classes:

• Flammable Liquids: These readily ignite and pose a fire risk. Examples include gasoline, acetone, and ethanol.
• Oxidising Substances: These can accelerate the burning of other materials. Examples include hydrogen peroxide and bleach.
• Compressed Gases: These are stored under pressure and can explode if mishandled. Examples include oxygen, nitrogen, and propane.
• Acute Toxicity: These chemicals can cause harm upon a single exposure, through inhalation, ingestion, or skin contact. Severity is further categorised (e.g., Category 1 being the most toxic). Examples include cyanide and arsenic.
• Skin Corrosion/Irritation: These chemicals can damage or irritate the skin. Examples include sulfuric acid and lye.
• Serious Eye Damage/Eye Irritation: These chemicals can cause severe eye damage or irritation. Examples include hydrochloric acid and ammonia.

Chemical Labels: Your Safety Guide

Chemical containers display labels with pictograms and hazard statements following the GHS. These pictograms are universally understood symbols that readily communicate the associated danger. It is essential to familiarise yourself with these symbols and carefully read the hazard statements on the label, which provide specific information about the potential risks and recommended precautions.

Safe Handling Practices: A Recipe for Safety

Now that you understand the language of chemical hazards, let’s explore some essential safe handling practices:

• Know Before You Go: Always read the Safety Data Sheet (SDS) of a chemical before using it. The SDS provides detailed information on the chemical’s properties, hazards, safe handling procedures, first-aid measures, and disposal methods.
• Dress for Success: Wear appropriate Personal Protective Equipment (PPE) based on the hazard class of the chemical. This may include gloves, safety glasses, respirators, and lab coats.
• Work Wisely: Always work in a well-ventilated area to minimise exposure to harmful fumes. Use fume hoods for particularly hazardous chemicals.
• Contain the Chaos: Store chemicals in properly labelled, corrosion-resistant containers in designated storage areas.
• Less is More: Only use the minimum amount of chemical required for the task.
• Cleanliness is Key: Clean up spills immediately using appropriate spill kits and dispose of waste chemicals according to regulations.
• Be Prepared: Familiarise yourself with the emergency procedures in case of accidents, including spill clean-up protocols and fire extinguisher usage.

Safety First: A Shared Responsibility

Safe handling of chemicals is a shared responsibility. Employers have a legal obligation to provide a safe work environment with high quality chemical and powder safe handling equipment, and train employees on proper handling and laboratory equipment procedures. Employees, in turn, should actively participate in safety training and follow established protocols.

Beyond the Basics

This article provides a foundational understanding of chemical hazard classes and safe handling practices. However, it’s crucial to seek comprehensive training specific to the chemicals you work with. Additionally, staying updated on new regulations and best practices is essential for maintaining a safe and healthy work environment.

By understanding the language of chemical hazards and implementing safe handling practices, we can minimise risks and ensure a safe and productive environment for everyone working with chemicals.

LAFtech: Your Trusted Partner for Safe Chemical and Powder Handling Laboratory Equipment

LAFtech, Australasia’s leading supplier of scientific and laboratory equipment, offers a comprehensive range of solutions for chemical and powder safe handling. From fume cabinets and safety storage to filtration systems, LAFtech caters to diverse fields like biology, chemistry, and environmental science. We are the exclusive Australian distributor for renowned brands like Air Science and CHCLAB, ensuring top-quality equipment. With over 25 years of experience, LAFtech provides complete after-sales support, including servicing and fumigation services, guaranteeing a safe and reliable experience for researchers across Australasia.