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Diss Factsheets

Administrative data

Endpoint:
relative self-ignition temperature (solids)
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2009-06-18 to 2009-07-03
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: - Compliant with GLP - Compliant with Council Regulation (EC) No. 440/2008, Part A, Methods for the determination of physico-chemical properties, A.16 “Relative self-ignition temperature for solids”

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
2009
Report date:
2009

Materials and methods

Test guideline
Qualifier:
according to guideline
Guideline:
EU Method A.16 (Relative Self-Ignition Temperature for Solids)
Deviations:
no
GLP compliance:
yes (incl. QA statement)

Test material

Constituent 1
Chemical structure
Reference substance name:
Beryllium
EC Number:
231-150-7
EC Name:
Beryllium
Cas Number:
7440-41-7
Molecular formula:
Be
IUPAC Name:
beryllium
Details on test material:
- Name of test material (as cited in study report): Beryllium Metal Powder
- Substance type: metal powder
- Physical state: solid
- Analytical purity: 99.4 %
- Lot/batch No.: O-30H Grade/Blend# 051106
- Expiration date of the lot/batch: December 31, 2050
- Stability under test conditions: stable
- Storage condition of test material: Stored in a dry area


Results and discussion

Relative self-ignition temperature (solids)
Relative self-ignition temperature:
> 400 °C
Remarks on result:
other:

Any other information on results incl. tables

Using a linear increase in temperature of about 0.49 °C/min, Beryllium Metal Powder showed no relevant exothermic reaction. At the end of the measurement, beryllium metal powder remained unchanged.

Applicant's summary and conclusion

Conclusions:
Beryllium metal powder is not auto-flammable, according to the criteria as described in the guideline.
Executive summary:

The purpose of the study was to provide preliminary information on the auto-flammability of beryllium metal powder at elevated temperatures.

The determination of the relative self-ignition temperature of the test item was performed according to the Directive 92/69, Publication No. L383, December 1992 and Council Regulation (EC) No. 440/2008, Part A, Methods for the determination of physico-chemical properties, A.16 “Relative self-ignition temperature for solids”. Using a linear increase in temperature of about 0.49 °C/min, beryllium metal powder showed no relevant exothermic reaction. At the end of the measurement, beryllium metal powder remained unchanged.

Beryllium metal powder is not auto-flammable, according to the criteria as described in the guideline.