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Reference
Endpoint:
oxidising solids
Type of information:
experimental study
Adequacy of study:
key study
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
other: EU method. GLP study.
Qualifier:
according to guideline
Guideline:
EU Method A.17 (Oxidising Properties (Solids))
Deviations:
no
GLP compliance:
yes (incl. QA statement)
Contact with:
powdered cellulose
Key result
Sample tested:
other: sample and cellulose in ration weight 2:1.
Parameter:
mean burning time
Remarks on result:
other: Not oxidizing.

Table 1. Results of the preliminary test

 

The mixture of tested substance and cellulose in ratio weight 2:1

Burning time [s]

Remarks of reaction

Test-1

-

After applying the flame of burner the sample but only in the flame zone. The sample burning passes after 2 s. Result is negative.

Test-2

-

Test-3

-

The shortest burning time of mixture

of tested substance and cellulose – tp[s]

-

Burning time of standard mixture – tw[s]

29

Table 2. Results of determination of oxidizing properties for the reference mixture

Barium nitrate(V) [%]

10

20

30

40

50

60

70

80

90

Cellulose [%]

90

80

70

60

50

40

30

20

10

Burning time of the pile [s]

207

161

142

132

126

95

160

 (25 mm/
64 s )*

-

Burning rate of the pile [mm/s]

0.97

1.24

1.41

1.52

1.59

2.11

1.25

0.39

-

Maximal burning rate of

the reference mixture pile[mm/s]

2.11

 

Part I: measure of burning time and burning rate of piles (200 mm) of mixture test substance with cellulose in various weight ratios (from 10% to 90%) is shown in Table 3. During the determination, the substance burnt completely.

 

Table 3. Results of determination of oxidizing properties

 

Test substance (content in mixture) [%]

10

20

30

40

50

60

70

80

90

Cellulose (content in mixture) [%]

90

80

70

60

50

40

30

20

10

Burning time of the pile [s]

(40 mm/
70 s)*

NI

NI

NI

NI

NI

NI

NI

NI

Burning rate of the pile [mm/s]

0.57

-

-

-

-

-

-

-

-

Maximal burning rate of

the reference mixture pile [mm/s]

2.11

* The train does not burn completely

NI - the path does not ignit

Interpretation of results:
other: no oxidising properties
Remarks:
Migrated information
Conclusions:
The test item has no oxidizing properties in accordance with test A.17 criteria.
Executive summary:

The determination of the oxidising properties of the test substance was performed according to EU method A.17. The test item has no oxidizing properties in accordance with test A.17 criteria.

Description of key information

Key study: EU method. GLP study.

The test item has no oxidizing properties in accordance with test A.17 criteria.

Key value for chemical safety assessment

Oxidising properties:
no

Additional information

Key study: EU method. GLP study.

The test item has no oxidizing properties in accordance with test A.17 criteria.

Justification for classification or non-classification

Based on the available data, the test substance is not classified for oxidising properties.

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