RSS-4, DRY SUBSTANCE

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:

29/07/2008-03/09/2008

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Reason / purpose for cross-reference:

reference to same study

Reason / purpose for cross-reference:

reference to other study

Qualifier:

according to guideline

Guideline:

EU Method A.10 (Flammability (Solids))

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Remarks:

UK GLP standards (Schedule 1, Good Laboratory Practice Regulations 1999 (SI 1999/3106 as amended by SI 2004/0994)).

Test procedure:

burning time (test type not further specified)

Remarks:

or specified in description of method (migrated information)

Burning time:

91 s

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.

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.

The pile ignited and burnt with a small yellow flame which self-extinguished 91 seconds after the Bunsen flame was removed, without propagating combustion.

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

Moisture content

	Determination A	Determination B
a)   Mass of loss bottle (g)	20.4074	18.2864
b)   Mass of loss bottle and test material (g)	21.4284	19.2934
c)   Mass of loss bottle and test material       after drying (g)	21.4257	19.2869
Moisture content % (w/w)	0.264	0.645
Mean moisture content % (w/w)	0.455

Interpretation of results:

other: not highly flammable

Conclusions:

The test material has been determined to be not highly flammable as it did not propagate combustion over the 200 mm of the preliminary screening test.

Executive summary:

The flammability (solids) was determined by measuring the burning rate of test material prepared as a pile of set dimensions.  Testing was conducted using Method A.10 of Commission Directive 92/69/EEC (which constitutes Annex V of Council Directive 67/548/EEC).

The test material has been determined to be not highly flammable as it did not propagate combustion over the 200 mm of the preliminary screening test.

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:

the study does not need to be conducted because the substance is known to be soluble in water to form a stable mixture

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

Description of key information

Based on the results obtained in a study performed in accordance with EU Method A.10 it was determined that the substance is not highly flammable. Based on experience, the substance is not considered to be pyrophoric and not considered to be highly flammable in contact with water.

Key value for chemical safety assessment

Flammability:

not classified

Additional information

In accordance with EU Method A.10 the flammability of the substance was determined using the preliminary test. Based on the results obtained, it was determined that the substance is not highly flammable as it did not propagate combustion. As it was demonstrated during the determination of the physical-chemical properties of the substance that the substance does not ignite in contact with air and does not react with water, the classification procedure for substances which may react with water to emit flammable gases and the classification procedure for pyrophoric solids need not be applied and it can therefore be concluded that the substance has no pyrophoric properties and that the substance is not highly flammable in contact with water.

Justification for classification or non-classification

Based on a study performed in accordance with EU Method A.10 and based on experience obtained during the determination of the physical-chemical properties of the substance, the substance does not need to be classified for flammability in accordance with the CLP Regulation.