Registration Dossier

Administrative data

Endpoint:
flammable solids
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2019
Report Date:
2019

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
UN Manual of Tests and Criteria: Test N.1 (Test method for readily combustible solids)
Version / remarks:
2015
GLP compliance:
yes (incl. certificate)

Test material

Reference
Name:
Unnamed
Test material form:
solid: crystalline

Results and discussion

Flammable solids
Key result
Test procedure:
burning rate test: preliminary screening test
Burning time:
ca. 2 min

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
In the preliminary test the test item could not be ignited. Based on the results of the preliminary test, no main test was performed.
The test item is considered as a not readily combustible solid of Division 4.1.
Executive summary:

Test System
Form:
The mould, which is made of aluminum, has a length of 250 mm and 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.
Reaction Plate:
a non-combustible and non-porous plate (floor-tile)
Surrounding Conditions:
The test is performed at room temperature in a laboratory fume hood.
Ignition Source:
flame of a gas burner (blowlamp, with a minimum diameter of 5 mm)
Exposure Time:
until the powder ignites or for a maximum of 2 minutes

Time Measurement:
a stop-watch, able to measure in seconds

Preparation of the Piles
The test item was used in its initial form.
The test item was loosely filled into a mould. Then the mould was dropped three times from
a height of 2 cm onto a solid surface. The lateral limitations were removed and the excess
substance was scraped off.
A non-combustible and non-porous plate was placed on top of the mould. This was inverted
and the mould was removed.

Preliminary Test
The flame from a gas burner was applied to one end of the powder train for 2 minutes. The
burning of the pile was observed. The test was performed twice.

Main Test
Based on the results of the preliminary test no further testing was required.

Results and Conclusion
In the preliminary test the test item could not be ignited. Based on the results of the
preliminary test, no main test was performed.
The test item is considered as anot readily combustible solid of Division 4.1