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flammable solids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
October 11, 2017 (Study initiation) - November 27, 2017 (Study termination)
1 (reliable without restriction)
according to guideline
UN Manual of Tests and Criteria: Test N.1 (Test method for readily combustible solids)
Version / remarks:
rev. 6
Principles of method if other than guideline:
The test item is loosely filled into a mould. The mould is made of metal, has a length of 250 mm and a triangular cross section with an inner height of 10 mm and an inner width of 20 mm. On both sides of the mould in a longitudinal direction two metal sheets are mounted as lateral limitations which project 2 mm beyond the upper edge of the triangular cross section. The mould is dropped three times from a height of 2 cm onto a solid surface. If necessary the mould is filled up again. Then the lateral limitations are removed and the excess substance is scraped off. A non-combustible and non-porous plate is placed on top of the mould, the apparatus is inverted and the mould is removed.

As ignition source a flame is used to ignite the pile at one end.
GLP compliance:
yes (incl. QA statement)
Specific details on test material used for the study:
- Test item: Titanhydridpulver VM
- Batch No.: 81174
- Identity: 94.7% Ti
- Physical state: Dark grey powder
- Storage conditions: Ambient temperature (10 octo 30 °C), under inert gas
- Expiry date: September 11, 2018

Key result
Test procedure:
other: burned over a distance of 200 mm
Burning time:
ca. 277 s
Interpretation of results:
GHS criteria not met
The flammability of titanium hydride was tested according to UN Manual of tests and criteria N°1. The pile burned over a distance of 200 mm within 277 scondes. The test item is not a readily combustible solid in the sense of UN Manual of tests and Criteria Method N.1.
TiH2 is not flammable solid according to chapter 2.7 of the GHS (CLP) regulations.

Description of key information

No data was available for this endpoint. Therefore, flammability test was launch in an external lab (Siemens) using UN manual of test and criteria: Test N.1 (Test method for readily combustible solids). The result of this experiment has determined that TiH2 was not flammable.

Key value for chemical safety assessment

not classified

Additional information

Justification for classification or non-classification