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Reference
Endpoint:
oxidising solids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
01.02.- 08.02.2017
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Qualifier:
according to
Guideline:
EU Method A.17 (Oxidising Properties (Solids))
Deviations:
yes
Remarks:
Based on earlier studies the test substance was not dried. The reason is that the test substance contents high hydrophilic sulfonate salts that rapidly bind air humidity.
GLP compliance:
yes (incl. certificate)
Contact with:
powdered cellulose
Duration of test (contact time):
300 s
Sample tested:
reference mixture as specified
Parameter:
maximum burning rate
Result:
1.1 mm/s
Key result
Sample tested:
test mixture (not specified)
Parameter:
burning rate
Remarks on result:
not determinable

The reaction zones of all mixtures propagated over an initial distance of 30 mm, but none consumed all distance of the pile (200 mm) during 5 minutes of burning.

Table No.1: Process of burning of mixtures of the test substance with cellulose

Test substance

 (w/w %)

Burning Time (s)

Distance from 200 mm (mm)

Burning Rate (mm/s)

Note

10

300

24

-

Without flame

20

300

47

-

Without flame

30

300

53

-

Without flame

40

300

53

-

Without flame

50

300

49

-

Without flame

60

300

45

-

Without flame

70

300

28

-

Without flame

80

300

46

-

Without flame

90

300

47

-

Without flame

Interpretation of results:
GHS criteria not met
Conclusions:
Based on results obtained from train test, it is obvious that none of the test substance mixtures with cellulose burned all distance of 200 mm of the pile. Thus test substance, Acid Black 227, shouldn´t be considered as a substance with oxidizing properties.
Executive summary:

The oxidizing properties of test substance, Acid Black 227, were determined.

The procedure was performed according to the Method A.17 Oxidizing properties (Solids), Council Regulation (EC) No.440/2008, published in O.J. L 142, 2008.

Based on results obtained from train test, it is obvious that none of the test substance mixtures with cellulose burned all distance of 200 mm of the pile.

Thus test substance, Acid Black 227, shouldn´t be considered as a substance with oxidizing properties.

Description of key information

The procedure was performed according to the Method A.17 Oxidizing properties (Solids), Council Regulation (EC) No.440/2008, published in O.J. L 142, 2008. Only one study is available (GLP, Klimish score 1)

Key value for chemical safety assessment

Oxidising properties:
non oxidising

Additional information

Justification for classification or non-classification