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Diss Factsheets

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
explosive properties of explosives
Type of information:
experimental study
Adequacy of study:
key study
Study period:
17 November 1997 to 17 November 1997
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to guideline
Guideline:
EU Method A.14 (Explosive properties)
Deviations:
no
Principles of method if other than guideline:
None
GLP compliance:
yes
Parameter:
thermal sensitivity - Koenen test: limiting diameter (mm)
Remarks:
Three tests were performed with a circular nozzle plate with a hole of 2 mm diameter used.
Remarks on result:
not thermal sensitive if heated under defined confinement
Parameter:
sensitiveness to impact: impact energy (J)
Remarks:
6 tests using a 10 kilogram mass from a height 0.4 m
Remarks on result:
not sensitive to impact using an impact energy of 40 J
Remarks:
At every test a decomposition of the test substance was observed.
Parameter:
sensitiveness to friction: friction load (N)
Remarks:
6 tests pinload with 360 newton
Remarks on result:
not sensitive to friction using a friction load of 360 N
Interpretation of results:
GHS criteria not met
Conclusions:
The test substance has no danger of explosion according to the explosive properties in Guideline 92/69/EEC A. 14.
Executive summary:

Explosiveness of the test substance was determined according to to EU Method A.14 (Explosive properties). 


The method provides a scheme of testing to determine whether or not a solid, a liquid or a pasty substance or preparation presents a danger of explosion when submitted to the effect of a flame (thermal sensitivity) or to impact or friction (sensitivity to mechanical stimuli).


The method comprises three parts:



  1. a test of thermal sensitivity;

  2. a test of mechanical sensitivity with respect to shock;

  3. a test of mechanical sensitivity with respect to friction.


Thermal sensitivity


The method involves heating the substance or preparation in a steel tube, with various degrees of confinement being provided by nozzle-plates with different diameters of orifice, to determine whether the substance or preparation is liable to explode under conditions of thermal stress.


Mechanical sensitivity (shock)


The method involves subjecting the substance or preparation to the shock of a falling hammer on a steel anvil.


Mechanical sensitivity (friction)


The method involves subjecting the substance or preparation to friction between


standard surfaces under specified conditions of load and relative motion.


This test is restricted to solid and pasty substances or preparations.


Results


Thermal sensitivity


Three tests were performed with a circular nozzle plate with a hole of 2 mm diameter used.










































Test No.



weight of test substance [g]



nozzle width [mm]



t1 [s]



t2 [s]



reaction



appearance; number of fragments



1



14.6



2.0



11.2



75.7



bang



wall ripped open



2



14.5



2.0



12.4



42.6



bang



wall ripped open



3



14.6



2.0



11.7



53.2



bang



wall ripped open



 


Mechanical sensitivity (shock)


At every test a decomposition of the test substance was observed.


No explosion within 6 tests using a 10 kilogram mass from a height 0.4 m.


Mechanical sensitivity (friction)


No explosion within 6 tests pinload with 360 newton.


Conclusion


The test substance has no danger of explosion according to the explosive properties in Guideline 92/69/EEC A. 14.

Description of key information

The test substance has no danger of explosion according to the explosive properties in Guideline 92/69/EEC A. 14.

Key value for chemical safety assessment

Explosiveness:
non explosive

Additional information

Explosiveness of the test substance was determined according to to EU Method A.14 (Explosive properties). There were three parts to the test method thermal sensitivity test; mechanical sensitivity test with respect to shock; mechanical sensitivity test with respect to friction.


The test substance has no danger of explosion according to the explosive properties in Guideline 92/69/EEC A. 14 (Smeykal H, 1998).

Justification for classification or non-classification

The available data indicates no classification is required according to EC criteria (67/548/EEC) and CLP criteria (EC 1272/2008) for explosiveness.