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Handling chemical substances
http://www.rect.muni.cz/nso/
sekce Chemické látky – For foreigners

Hazard classes
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Physical hazard
Health hazard
Environmental hazard
explosives
gases under pressure
flammable substances etc.
acute toxicity
skin corrosion
skin irritation
eye damage
carcinogens
mutagens etc.
acute / chronic
aquatic toxicity

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Pictograms for hazard classes
•

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In handling chemical substances, it is the responsibility        of everyone to observe:

•hazard symbols
•hazard statements
•precautionary statements
•protect human health
•protect the environment

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Hazard statements - They are intended to form a set of standardized phrases about the hazards of
chemical substances
https://en.wikipedia.org/wiki/GHS_hazard_statements
•
Precautionary statements - They are intended to form a set of standardized phrases giving advice
about the correct handling of chemical substances
https://en.wikipedia.org/wiki/GHS_precautionary_statements

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Signal word
"Danger" or "Warning"
are used to emphasize hazards and indicate the relative level of severity of the hazard, assigned
to a hazard class.
Some lower level hazard categories do not use signal words.

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Safety data sheet (SDS)
•it is intended to provide workers with procedures for handling that substance in a safe manner,
•includes information such as physical data (melting point, boiling point, flash point, etc.),
toxicity, health effects, first aid, reactivity, storage, disposal, protective equipment, and
spill-handling procedures.
•SDS formats can vary from source to source within a country depending on national requirements.