2-(2,6-diethyl-4-methyl-phenyl)propanediamide

Oxidising properties

Link to relevant study record(s)

Reference

Endpoint:

oxidising solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

26 August 2003 to 27 August 2003

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.17 (Oxidising Properties (Solids))

Deviations:

no

GLP compliance:

yes

Contact with:

powdered cellulose

Duration of test (contact time):

134 - 361

Sample tested:

test mixture (not specified)

Remarks:

migrated information

Parameter:

maximum burning rate

Result:

1.5 other: mm/s (migrated information)

Remarks on result:

other: 10 % mixture

Sample tested:

test mixture (not specified)

Remarks:

migrated information

Parameter:

maximum burning rate

Result:

1.4 other: mm/s (migrated information)

Remarks on result:

other: 30 % mixture

Sample tested:

test mixture (not specified)

Remarks:

migrated information

Parameter:

maximum burning rate

Result:

0.9 other: mm/s (migrated information)

Remarks on result:

other: 60 % mixture

Sample tested:

test mixture (not specified)

Remarks:

migrated information

Parameter:

maximum burning rate

Result:

0.6 other: mm/s (migrated information)

Remarks on result:

other: 80 % mixture

Sample tested:

reference mixture (not specified)

Remarks:

migrated information

Parameter:

maximum burning rate

Result:

3 other: mm/s (migrated information)

Remarks on result:

other: 60 % barium nitrate/cellulose

Sample tested:

reference mixture (not specified)

Remarks:

migrated information

Parameter:

maximum burning rate

Result:

1.5 other: mm/s (migrated information)

Remarks on result:

other: 100 % cellulose

Table 1: Reference mixtures

Reference mixture	Fastest Burning Time	Maximum Burning Rate
60 % Barium Nitrate/Cellulose	66s	3.0 mm/s
100 % Cellulose	130s	1.5 mm/s

 

Table 2: Test material mixtures

For each of the burning times quoted below, the test substance mixture ignited and burned with a flame, with combustion propagating fully along the train.

% Test substance	Burning Time (s)						Maximum Burning Rate (mm/s)
	1	2	3	4	5	6
10%	134	141	134	137	139	140	1.5
30%	140	152	Only two tests were conducted for each of these mixtures)				1.4
60%	213	215					0.9
80%	361	353					0.6

Interpretation of results:

other: no oxidising properties

Remarks:

Migrated information

Conclusions:

The burning rate of the test material/cellulose mixtures fall well below the maximum burning rate of 3.0 mm/s for the 60 % w/w barium nitrate/cellulose reference mixture. Under the conditions of the test, the test material is therefore not classified as an oxidising substance. Although the reference substance used in the study was different to that recommended in CLP (EU regulation EC No. 1272/2008), the maximum burning rate of the test substance was considerably below the reference substance. The study is considered to be reliable, relevant and adequate for risk assessment and classification and labelling purposes.

Executive summary:

The oxidising properties of the test material was determined in accordance with the standardised guideline EU Method A.17 using a reduced testing programme. Under the conditions of the test, the burning rate of the test material/cellulose mixtures fell well below the maximum burning rate of 3.0 mm/s for the 60 % w/w barium nitrate/cellulose reference mixture. A reduced testing plan is therefore considered justified and further testing was not considered necessary. Under the conditions of the test, the test material is therefore not classified as an oxidising substance. Although the reference substance used in the study is different to that recommended in the classification criteria of the CLP (EU regulation EC No. 1272/2008), the maximum burning rate of the test substance was considerably below the reference substance. The test was therefore considered adequate for assessment of the risk of physical hazards arising from the test material.

Description of key information

Not oxidising, EU Method A.17, Jackson 2003

Key value for chemical safety assessment

Oxidising properties:

no

Additional information

The oxidising properties of the test material was determined in accordance with the standardised guideline EU Method A.17 using a reduced testing programme. Under the conditions of the test, the burning rate of the test material/cellulose mixtures fell well below the maximum burning rate of 3.0 mm/s for the 60 % w/w barium nitrate/cellulose reference mixture. A reduced testing plan is therefore considered justified and further testing was not considered necessary. Under the conditions of the test, the test material is therefore not classified as an oxidising substance. Although the reference substance used in the study is different to that recommended in the study guideline (Test O.1, UN RTDG, Manual of Tests and Criteria) for CLP (Regulation (EC) No. 1272/2008), the maximum burning rate of the test material was considerably below the reference substance. The test was therefore considered adequate for assessment of the risk of physical hazards arising from the test material.

The study was performed in line with GLP and an accepted standardised guideline with a high standard of reporting. The study was assigned a reliability score of Klimisch 1 and considered suitable for assessment as an accurate reflection of the test substance.

The available data is considered complete and the conclusion, not oxidising was taken forward for risk assessment.

Justification for classification or non-classification

In accordance with Regulation EC No. 1272/2008, the test material does not require classification as oxidising as the burning rate of the test material/cellulose mixtures fell well below the maximum burning rate of the reference mixture used (barium nitrate). Although the reference substance used in the study was different to that used in the guideline method for classification under CLP, the maximum burning rate of the test material was considerably below the reference substance. The test was therefore considered adequate for assessment of the risk of physical hazards arising from the test material.

In accordance with Directive 2001/59/EC, 2.2.2, the test material does not require classification as oxidising as the burning rate of the test material/cellulose mixtures fell well below the maximum burning rate of the reference mixture used (barium nitrate).