Little Pro on 2018-03-06
Substances that cause adverse changes at the site of first contact (skin, eye, mucous membrane, respiratory tract etc) after a single exposure can be categorised as irritant or corrosive substances, depending on the reversibility of the effects observed. Eye irritation is the production of changes in the eye following application of a test substance to the front outer surface of the eye, which is fully reversible within 21 days. Serious eye damage is the production of tissue damage in the eye, or serious physical decay of vision, following the application of a test substance to the front outer surface of the eye, which is not fully reversible within 21 days.
There are 3 hazard categories for eye irritation under GHS. The table below summarizes eye irritation classification criteria for substances and tested mixtures.
Category | GHS Classification Criteria |
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Category 1 (Causes serious eye damage) |
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Category 2A (Irritant) |
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Category 2B (Mild irritant) |
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If a mixture contains a hazardous ingredient or multiple ingredients that have been classified as damaging to eyes or eye irritant, the mixture will be classified based on the table below.
It should be noted that certain chemicals such as acids, bases, inorganic salts, aldehydes, phenols and surfactants may not be classified using above additivity approach. For those chemicals, you may refer to the non-additivity approach below.
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Tags: Topics - GHS, GHS Classification