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- Hazard class table
Hazard class table
Hazard class table
If you are carrying out classification of substances and/or mixtures (chemical products) you are strongly advised to carefully go through the whole of Part 1 of the Guidance on the application of CLP criteria document.
Interpretation and guidance on the legal text on the criteria for classifying substances and mixtures for their physical, health or environmental effects is given in parts 2 to 4 of the Guidance document. It is strongly advised to use this guidance when classifying chemicals under the CLP Regulation.
The following table provides you the reference to the chapters and sections related to each hazard class in the Guidance document.
Physical hazards
In principle, the physical hazards of a mixture need to be tested and evaluated for the mixture itself. There may be cases where adequate and reliable information is already available. This is outlined in Article 8(2) CLP.
In some cases, the properties of the ingredients can be used as a basis to determine whether a given physical hazard is to be expected or not.
When new tests for physical hazards are carried out for the purposes of classification, they must be carried out in compliance with a relevant recognised quality system or by laboratories complying with a relevant recognised standard.
Hazard Class | Chapter in Guidance | Section with guidance on mixture classification | Section with examples on mixture classification | Further information |
---|---|---|---|---|
Explosives | 2.1 | 2.1.4 | 2.1.7 | |
Flammable gases | 2.2 | 2.2.1.4 | 2.2.1.7 | |
Flammable aerosols and aerosols | 2.3 | not applicable | not applicable | |
Oxidising gases | 2.4 | 2.4.7 | ||
Gases under pressure | 2.5 | 2.5.7 | ||
Flammable liquids | 2.6 | 2.6.7 | ||
Flammable solids | 2.7 | 2.7.7 | ||
Self-reactive substance/mixture | 2.8 | 2.8.7 | ||
Pyrophoric liquids | 2.9 | 2.9.7 | ||
Pyrophoric solids | 2.10 | 2.10.7 | ||
Self-heating substance/mixture | 2.11 | 2.11.7 | ||
Water-reactive - emits flammable gases | 2.12 | 2.12.7 | ||
Oxidising liquids | 2.13 | 2.13.6 | ||
Oxidising solids | 2.14 | 2.14.6 | ||
Organic peroxides | 2.15 | 2.15.7 | ||
Corrosive to metals | 2.16 | 2.16.7 |
Health hazards
The Guidance provides simple examples on the classification of mixtures for most health hazards.
Hazard Class | Chapter in Guidance | Section with guidance on mixture classification | Section with examples on mixture classification | Further information |
---|---|---|---|---|
Acute toxicity | 3.1 | 3.1.3 | 3.1.6.3 | |
Skin corrosion / irritation | 3.2 | 3.2.3 | 3.2.6.2 | |
Eye damage / irritation | 3.3 | 3.3.3 | 3.3.6.2 | |
Respiratory / skin sensitisation | 3.4 | 3.4.3 | 3.4.6.1 | |
Mutagenicity | 3.5 | 3.5.3 | ||
Carcinogenicity | 3.6 | 3.6.3 | ||
Toxic for reproduction | 3.7 | 3.7.3 | ||
Specific target organ toxicity (single exposure) |
3.8 | 3.8.3 | ||
Specific target organ toxicity (repeated exposure) |
3.9 | 3.9.3 | 3.9.6.3 | |
Aspiration hazard | not applicable | not applicable | To determine the classification, kinematic viscosity of the sample (substance/mixture) is measured. The viscosity of a non-Newtonian fluid is undefined because it depends on the method of measurement. See the Guidance on information requirements and chemical safety assessment - Chapter R.7a states: The measurement of non-Newtonian fluids is possible only with the rotational viscometer. |
Environmental hazards
Guidance on the application of CLP criteria
Hazard Class | Chapter in Guidance | Section with guidance on mixture classification | Section with examples on mixture classification | Further information |
---|---|---|---|---|
Hazardous to the aquatic environment |
4.1 | 4.1.4 |
4.1.4.7 The use of Table 4.1.6—a. of the Guidance document is clarified in an additional example (Example AX). The summation method is clarified with a figure using cylinders (Example YY). |
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Annex IV.5.6 Classification of mixtures of metals and metal compounds |
Simple or regular mixtures of metals should be classified as any other mixtures. Alloys are considered to be special mixtures. |