The purpose of the GHS classification is to provide users of chemicals with harmonized information in order to improve the protection of human health and the environment. Many countries already have regulatory systems for chemical classification and hazard warnings.
GHS hazard class and hazard category. The GHS hazard category is the classification of the criteria within each hazard class. For example, the hazard class of flammable liquids can be divided into 4 categories, of which category 1 of flammable liquids represents the greatest danger.
Harmful to health. Acute toxicity comprises five GHS categories from which relevant elements relating to transport, consumers, work and the environment can be selected. Substances are divided into one of five toxicity categories based on LD50 (oral, dermal) or LC50 (inhalative).
These hazards are divided into three classes: biological, chemical and physical. Biological hazards include harmful bacteria, viruses or parasites (e.g. salmonella, hepatitis A and trichinella). Chemical hazards include compounds that can cause disease or injury with immediate or prolonged exposure.
The GHS is a system for the standardization and harmonization of classifications. Identification of chemicals. It is a logical and comprehensive approach to: • Define the health, physical and environmental risks of chemicals • Establish classification procedures using available chemical data for comparison.
It is important to reiterate that HazCom training is not a clear requirement for adapting to the GHS. Employers should continue to train new employees using the HazCom standard and, if necessary, regularly train existing employees.
WHMIS Guide 2015 / GHS SYMBOLS
An important difference between the NFPA / HMIS and GHS / HazCom 2012 systems is the way they use numbers. The GHS system numbers, adopted by OSHA, do not appear on the label, but are used to determine what is on the label.
GHS stands for Globally Harmonized System of Classification and Labeling of Chemicals. OSHA approval is essentially a revision of the hazard reporting standard to comply with the GHS. OSHA calls this revision HazCom 2012. The GHS is not a global law or regulation - a common misconception - it is a system.
How to start creating GHS labels in three steps:
Several international organizations, as well as UN programs and specialized agencies dealing with chemical safety in traffic or the environment, occupational health and safety, pesticide management, and poisoning prevention and treatment, establish the GHS of
Under 40 CFR 156.62, the EPA has defined four toxicity categories for acute pesticide hazards, with Category I being the highest toxicity category (toxicity class).
The GHS uses three hazard classes: health hazard, physical hazard, and environmental hazard. OSHA doesn’t need these. Health risks pose a threat to human health (e.g. breathing or sight), while physical risks cause damage to the body (e.g. skin burns).
Key elements of the HazCom standard
Lethal Concentration 50 (LC50) Standard target for environmental toxicity that kills half of the sample population of a given laboratory animal within a specified period of time through inhalation (breath) exposure.