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EC number: 235-741-0 | CAS number: 12645-31-7
Flammability
Administrative data
Link to relevant study record(s)
- Endpoint:
- substances / mixtures which in contact with water emit flammable gases
- Data waiving:
- other justification
- Justification for data waiving:
- other:
- Justification for type of information:
- A flammability study is scientifically unjustified, as flammability for a liquid substance is derived from the substances flash point and boiling point, which have been assessed. According to ECHA Guidance on Information Requirements and Chemicals Safety Assessment, Chapter R7a, substances which, in contact with water, are liable to become spontaneously flammable or emit flammable gases in dangerous quantities, are considered as “flammable on contact with water”. Experience from handling and in use, plus the substance’s structure, indicate that the substance is not flammable in contact with water and is not expected to have any pyrophoric properties.
- Endpoint:
- pyrophoric liquids
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- The study was conducetd on 25 October 2012
- Reliability:
- 2 (reliable with restrictions)
- Rationale for reliability incl. deficiencies:
- other: This study was conducted in accordance with an International Guideline, but was not conducted according to the principles of GLP.
- Qualifier:
- according to guideline
- Guideline:
- other: UN Test L2: Sustained Combustibility Test
- Deviations:
- no
- GLP compliance:
- no
- Test procedure:
- ignition time on contact with air
- Remarks:
- Ignition on contact with air refers to either Pyrophoric solids or Pyrophoric liquids depending on physical state (migrated information).
- Remarks on result:
- no ignition on contact with air (not further specified)
- Remarks:
- corresponding to 'no' in migrated source record.
- Test procedure:
- ignition time on contact with air
- Remarks:
- Ignition on contact with air refers to either Pyrophoric solids or Pyrophoric liquids depending on physical state (migrated information).
- Remarks on result:
- no ignition on contact with air (not further specified)
- Remarks:
- corresponding to 'no' in migrated source record.
- Interpretation of results:
- non flammable
- Remarks:
- Migrated information
- Conclusions:
- The sustained combustibility test conducted proves that PR-1137 is not considered a flammable liquid, for transportation purposes, provided the flash point is > 35°C.
- Executive summary:
The sustained combustibility of PR-1137 was determined in accordance with UN Test L2: Sustained Combustibility Test.
The study concluded that PR-1137 is not considered a flammable liquid, for transportation purposes, provided the flash point is > 35°C.
Referenceopen allclose all
Table 3.1. Full Test Results
| Temp (°C) | Heating Time (s) | Flashing before test? (yes(y) or no(n) | Ignition before test? Yes(y) or No (n) | Flashing with test flame? Yes(y) or No (n) | Ignition with test flame? Yes(y) or No (n) | Time of Ignition after removal of test flame (s) |  Ignition? yes (y) / no (n) |
| 60.5 | 60 | n | n | n | n | - | n |
| 60.5 | 60 | n | n | n | n | - | n |
| 60.5 | 60 | n | n | n | n | - | n |
| 60.5 | 30 | n | n | n | n | - | n |
| 60.5 | 30 | n | n | n | n | - | n |
| 60.5 | 30 | n | n | n | n | - | n |
| 75 | 60 | n | n | n | n | - | n |
| 75 | 60 | n | n | n | n | - | n |
| 75 | 60 | n | n | n | n | - | n |
| 75 | 30 | n | n | n | n | - | n |
| 75 | 30 | n | n | n | n | - | n |
| 75 | 30 | n | n | n | n | - | n |
Description of key information
Flash point = 44 ± 2°C (101.12 kPa); Tremain & Atwal (2011); EU Method A.9.
Sustained combustibility = no ignition; Baker (2012); UN Test L2
Key value for chemical safety assessment
- Flammability:
- non flammable
Additional information
A sustained combustibility test confirmed that although the substance met the criteria for classification as flammable (Category 3; H226) based on it's flash point, when tested for combustion in air at atmospheric pressure, no ignition was observed.
Experience from handling and in use, plus the substance’s structure, indicate that the substance is not flammable in contact with water and is not expected to have any pyrophoric properties.
Justification for classification or non-classification
The flash point of the test item has been determined to be 44°C by Method A9 Flash Point of Commission Regulation (EC) No 440/2008 of 30 May 2008.
The CLP criteria for classification as a category 3 flammable liquid is: Flash point ≥23°C and ≤60°C.
A sustained combustibility test conducted in accordance with Guideline UN Test L2: Sustained Combustibility Test, indicated that the substance is not considered a flammable liquid, provided the flash point is > 35°C. The sustained combustibility test has been used as conclusive evidence towards the non-classification of the substance with regard to flammability.
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