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Physical & Chemical properties

Oxidising properties

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Administrative data

Endpoint:
oxidising solids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
From November 1988 to March 1989
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study

Data source

Reference
Reference Type:
study report
Title:
Unnamed
Year:
1989
Report Date:
1989

Materials and methods

Test guideline
Qualifier:
according to
Guideline:
EU Method A.17 (Oxidising Properties (Solids))
Deviations:
no
GLP compliance:
yes

Test material

Reference
Name:
Unnamed
Type:
Constituent
Test material form:
solid

Study design

Contact with:
other: 60% barium nitrate/cellulose

Results and discussion

Test results (Oxidising solids)open allclose all
Key result
Sample tested:
reference mixture as specified
Remarks:
60% barium nitrate/cellulose
Parameter:
burning time of reaction over a distance of 200 mm
Result:
60 s
Key result
Sample tested:
test mixture as specified
Remarks:
10% mixture with reference substance
Parameter:
burning time of reaction over a distance of 200 mm
Result:
210 s
Remarks on result:
flaming
Key result
Sample tested:
test mixture as specified
Remarks:
30% mixture with reference substance
Parameter:
burning time of reaction over a distance of 200 mm
Result:
10 min
Remarks on result:
slow smouldering
Remarks:
propagated only 1 cm from the initial burning distance before self-extinguishing.
Key result
Sample tested:
test mixture as specified
Remarks:
60% mixture with reference substance
Parameter:
burning time of reaction over a distance of 200 mm
Result:
40 min
Remarks on result:
slow smouldering
Remarks:
propagated only 4 cm from the initial burning distance before self-extinguishing.
Key result
Sample tested:
test mixture as specified
Remarks:
80% Mixture with test substance
Parameter:
burning time of reaction over a distance of 200 mm
Result:
60 min
Remarks on result:
slow smouldering
Remarks:
propagated only 8 cm from the initial burning distance before self-extinguishing.

Any other information on results incl. tables

10% Test Substance: The sample ignited and combustion propagated fully (200 mm) with flame: Burning time 210 sec

30% Test Substance: The sample ignited and smouldered for 10 min propagating only 1 cm of the initial burning distance. It self-extinguished before the smouldering had propagated to the first timing mark.

60% Test Substance: The sample ignited and then smouldered 4 cm in 40 mins before self-extinguishing.

80% Test Substance: The sample ignited and then smouldered 8 cm in 60 min before self-extinguishing.


A reduced testing programme was employed because the slow burning rate of the test substance mixtures, relative to that of the reference mixture, adequately demonstrates that the test substance is attenuating the burning properties of cellulose and not enhancing them.

Applicant's summary and conclusion

Interpretation of results:
GHS criteria not met
Conclusions:
Under the study condition, test substance was determined to be non-oxidising.
Executive summary:

A study was conducted to determine oxidising properties of the substance, according to EU method A.17. Under the study condition, test substance was determined to be non-oxidising (Harpar, 1989).