Registration Dossier

Administrative data

Endpoint:
flammable solids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2009-06-16 to 2009-07-14
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: - Compliant to GLP - Compliant with Council Regulation (EC) No. 440/2008, Part A, Methods for the determination of physico-chemical properties, A.10 “Flammability (solids)”

Data source

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

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
EU Method A.10 (Flammability (Solids))
GLP compliance:
yes (incl. certificate)

Test material

Reference
Name:
Unnamed
Type:
Constituent
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

Pyrophoric solids
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.
Pyrophoric liquids
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.

Any other information on results incl. tables

In contact with the ignition source, a strong red glowing of beryllium metal powder was observed which turned into a bright glowing circle after 4 minutes. Once the bright circle extinguished, a white residue remained, the rest of beryllium metal powder remained unchanged. 

Beryllium metal powder could not be ignited with a flame during the preliminary test (contact time of about 5 minutes).

Therefore, no main test was performed.

Applicant's summary and conclusion

Conclusions:
Based on the results of this study, beryllium metal powder would not be considered as "highly flammable" according to the criteria of the guideline.
Executive summary:

The determination of the flammability of the test item was performed in accordance with the Council Regulation (EC) No. 440/2008, 30 May 2008, Part A, Methods for the determination of physico-chemical properties, A. 10 “Flammability (solids)”.

In contact with the ignition source, a strong red glowing of beryllium metal powder was observed which turned into a bright glowing circle after 4 minutes. Once the bright circle extinguished, a white residue remained, the rest of beryllium metal powder remained unchanged. Beryllium metal powder could not be ignited with a flame during the preliminary test (contact time of about 5 minutes). Therefore, no main test was performed.

Based on the results of this study, beryllium metal powder would not be considered as "highly flammable" according to the criteria of the guideline.