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Flammability

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Description of key information

The substance is classified as flammable liquid cat. 3 (GHS 02: flame, H226: Flammable liquid and vapour).


 


The substance has not to be classified as flammable gas, flammable solid, flammable in contact with water, flammable aerosol, pyrophoric solid, pyrophoric liquid or self-heating substance.

Key value for chemical safety assessment

Flammability:
flammable

Additional information

Flammable gases


The test item is a liquid at ambient conditions. This hazard class is only applicable for gases. Thus, the substance was not considered for classification as flammable gas.


 


Flammable liquid


A survey of the determined flash point for commercial peracetic acid products revealed the reference values of 5% peracetic acid solutions range from 74 to 83 °C, while those of containing 15 peracetic acid were between 68 and 81 °C, respectively.


 


Flammable solids


The test item is a liquid at ambient conditions. This hazard class is only applicable for solids. Thus, the substance was not considered for classification as flammable solid.


 


Pyrophoric liquids


In accordance with section 2.9.4 Annex I of Regulation (EC) No 1272/2008 and ECHA guidance on the application of CLP Criteria section 2.9.4.2 the classification procedure for pyrophoric liquids needs not to be applied when experience in manufacture or handling shows that the liquid does not ignite spontaneously on coming into contact with air at normal temperatures (i.e. the liquid is known to be stable at room temperature for prolonged periods of time (days)). Based on the experience in handling and use the substance is not known to ignite spontaneously when coming into contact with air at normal temperatures. Thus, no study was conducted and the substance was not considered for classification as pyrophoric liquid.


 


Pyrophoric solids


The test item is a liquid at ambient conditions. This hazard class is only applicable for solids. Thus, the substance was not considered for classification as pyrophoric solid.


 


Self-heating substances and mixtures


In accordance with ECHA guidance on the Application of the CLP Criteria section 2.11.4.2 and ECHA guidance on IR/CSA chapter R.7a section R7.1.10.7 the test does not to be conducted as in general liquids are not classified as self-heating since the phenomena applies only to solids and the test method is not applicable to liquids according to ECHA guidance on the Application of the CLP Criteria section 2.11.4.2.


 


Substances which, in contact with water, emit flammable gases


In accordance with column 2 of REACH Annex VI and with Regulation (EC) No 1272/2008 Annex I section 2.12.4 and ECHA guidance on the application of CLP Criteria section 2.12.4.2 the classification procedure for this hazard class needs not to be applied. Based on the experience in handling and use the substance does not react with water and in addition the test substance is not pyrophoric. Thus, no study was conducted and the substance was not considered for classification.


 


Flammable Aerosols


Section 2.4.2 of Guidance on the application on the CLP Criteria state as follows: “Aerosols, this means aerosol dispensers, are any non-refillable receptacles made of metal, glass or plastics and containing a gas compressed, liquefied or dissolved under pressure, with or without a liquid, paste or powder, and fitted with a release device allowing the contents to be ejected as solid or liquid particles in suspension in a gas, as a foam, paste or powder or in a liquid state or in a gaseous state." Thus, as the substance does not meet the definition for aerosol, the test for aerosols was waived. Consequently the substance has not to be considered for classification for this hazard class.


 


In conclusion, the substance has to be considered as flammable liquid cat. 3, based on the flash point. The substance has not to be considered as flammable gas, flammable solid, flammable in contact with water, flammable aerosol, pyrophoric solid, pyrophoric liquid or self-heating substance.

Justification for classification or non-classification

Classification, Labelling, and Packaging Regulation (EC) No. 1272/2008


In accordance with Annex I Section 2.2, Section 2.3, Section 2.6, Section 2.7, Section 2.9, Section 2.10 Section 2.11, Section 2.12 of Regulation (EC) No 1272/2008, as amended for the seventeenth time in Regulation (EU) 2021/849, and UN GHS Rev 8 (2019) the test item has to be classified as flammable liquid (GHS 02: flame, H226: Flammable liquid and vapour), but not classified as readily combustible solid in class 4 Division 4.1, self-heating substance in Class 4 Division 4.2, substances which in contact with water emit flammable gases in Class 4 Division 4.3, pyrophoric liquid, pyrophoric solid in class 4 Division 4.2, flammable gases in class 2 or as aerosol in class 2.

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