• The last hazard group for classifying chemicals we are going to explore is the Health Hazard Group. This group is divided in 10 classes which include:
    1. Acute toxicity
    The products that are classified in this class are fatal, toxic or harmful after inhalation, skin contact or ingestion. This class includes five toxicity categories based on LD50 (oral, dermal) or LC50 (inhalation).
    2. Skin corrosion/irritation
    The products of this class can cause corrosion (irreversible skin burns)or irritation (reversible).

     
    3. Serious eye damage/eye irritation
    This class includes products that can cause serious eye damage (tissue damage which is partly reversible)or eye irritation. There are two categories in this group.
    4. Respiratory or skin sensitization
    Respiratory sensitizersare products that might induce allergy or asthma symptoms or breathing difficulties after inhalation. Skin sensitizers may cause allergic skin response after contact.
    5. Germ cell mutagenicity
    The products that are classified in this class might cause or are suspected of causing permanent genetic defects (mutations) to body cells that can be heritable. There are two categories in this class.
    6. Carcinogenicity
    This class covers products that cause cancer or maximize its incidence. There are two categories in this class.
    7. Reproductive toxicity
    The products of this class mightcause harmful effects on sexual function and fertility in adult males and femalesand are suspected of damaging the development of the unborn baby. There are two categories in this class.
    8. Specific target organ toxicity – single exposure
    These products cause or might cause damage to organs after a single exposure.
    This class also includes a category for products that cause respiratory irritation, drowsiness or dizziness.There are two categories in this class.
    9. Specific target organ toxicity – repeated exposure
    This class is for products that cause or may cause damage to organs afterextended or repeated exposure.There are two categories in this class.
    10. Aspiration hazard
    This class includes products that may be fatal if they are swallowed and enter the airways.There are two categories in this class based on the viscosity of the substances.

     

    Pictograms

    The following table presents the pictogramsthat are used for the health hazard group.

    Corrosion

    • Skin corrosion
    • Eye damage

     

    Skull and crossbones

    • Acute toxicity
    – Oral
    – Dermal
    – Inhalation

    Exclamation mark

    • Acute toxicity – Oral, Dermal, Inhalation
    • Skin irritation
    • Eye irritation
    • Skin sensitizer

    Health hazard

    • Respiratory sensitizer
    • Germ cell mutagenicity
    • Carcinogenicity
    • Reproductive toxicity
    • Specific Target Organ Toxicity – Single exposure
    • Specific Target Organ Toxicity – Repeated exposure
    • Aspiration hazard
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    This entry was posted on Monday, January 19th, 2015 By admin

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