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By Little Pro on 2016-01-13 Views:  Update:2016-04-27

Flammability is the ability of a chemical to burn or ignite, causing fire or combustion. The degree of difficulty required to cause the combustion of a chemical is quantified through fire testing. Usually materials are rated as highly flammable, flammable and non-flammable. You can often find it in the section 9 of a safety data sheet (SDS).

Regulatory Implications of Flammability

Knowing the flammability of a chemical or a material is very important for its storage and transport. Strict measures shall be taken to prevent fire for flammable materials.

GHS has set detailed classification criteria for flammable gases, liquids and solids here.

If a material has been classified as flammable gases, liquids or solids, its package shall also be properly marked and labelled according to GHS and dangerous goods regulations.

Under REACH, this study does not need to be conducted if

  • if the substance is a solid which possesses explosive or pyrophoric properties. or
  • for gases, if the concentration of the flammable gas in a mixture with inert gases is so low that, when mixed with air, the concentration is below the lower limit, or
  • for substances which spontaneously ignite when in contact with air.

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