Samarium

Flammability

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

8 November 2017

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

guideline study with acceptable restrictions

Qualifier:

according to guideline

Guideline:

UN Manual of Tests and Criteria: Test N.1 (Test method for readily combustible solids)

Deviations:

no

GLP compliance:

no

Specific details on test material used for the study:

- Form tested: massive metal

Key result

Test procedure:

burning rate test: preliminary screening test

Remarks on result:

substance does not ignite and propagate combustion either by burning with flame or smouldering along 200 mm of the powder train within the 2 minutes test period

The result of the preliminary screening test obviated the need to perform the definitive test.

Interpretation of results:

other: Not highly flammable in accordance with EU criteria

Conclusions:

Under the conditions of this study, the test material is not classified as a flammable solid.

Executive summary:

The flammability of the test material was investigated in accordance with the standardised guideline UN Method N.1

During the preliminary study the substance did not ignite or propagate combustion either by burning with flame or smouldering along 200 mm of the test material train within the 2 minutes test period.

The test material is therefore not classified as a flammable solid.

Reference 2

Endpoint:

substances / mixtures which in contact with water emit flammable gases

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

other:

Justification for type of information:

JUSTIFICATION FOR DATA WAIVING
The study does not need to be conducted because exerience in use shows that the substance, in massive form, reacts with water to produce hydrogen gas.

Reference 3

Endpoint:

pyrophoric solids

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

the study does not need to be conducted because the substance is known to be stable in contact with air at room temperature for prolonged periods of time (days) and hence, the classification procedure does not need to be applied

Justification for type of information:

JUSTIFICATION FOR DATA WAIVING
In accordance with section 1.5 of REACH Annex XI, the study does not need to be performed as based on the chemical structure pyrophoric properties are not to be expected. In addition, in the daily use and handling of the substance (as supplied, in buk form) during which continuous exposure to air can occur, no spontaneous ignition is observed.

Description of key information

Flammability (Solids, Massive)

Under the conditions of this study, the test material is not classified as a flammable solid.

Flammability (Contact with Water)

The study does not need to be conducted because experience in use shows that the substance, in massive form, reacts with water to produce hydrogen gas.

Flammability (Pyrophoricity)

In accordance with section 1.5 of REACH Annex XI, the study does not need to be performed as based on the chemical structure pyrophoric properties are not to be expected. In addition, in the daily use and handling of the substance (as supplied - in massive form) during which continuous exposure to air can occur, no spontaneous ignition is observed.

Key value for chemical safety assessment

Flammability:

substances and mixtures which in contact with water emit flammable gases

Additional information

Flammability (Solids, Massive)

The flammability of the test material was investigated in accordance with the standardised guideline UN Method N.1

During the preliminary study the substance did not ignite or propagate combustion either by burning with flame or smouldering along 200 mm of the test material train within the 2 minutes test period.

The test material is therefore not classified as a flammable solid.

Flammability (Contact with Water)

The study does not need to be conducted because experience in use shows that the substance, in massive form, reacts with water to produce hydrogen gas.

Flammability (Pyrophoricity)

In accordance with section 1.5 of REACH Annex XI, the study does not need to be performed as based on the chemical structure pyrophoric properties are not to be expected. In addition, in the daily use and handling of the substance (as supplied - in bulk form) during which continuous exposure to air can occur, no spontaneous ignition is observed.

Justification for classification or non-classification

In accordance with the criteria for classification as defined in Annex I, Regulation (EC) No 1272/2008, the substance (in massive form) requires classification as a substance which in contact with water emits flammable gases and is assigned the hazard code H261 (Category 3) with the hazard statement 'In contact with water releases flammable gases'.