Registration Dossier

Administrative data

Link to relevant study record(s)

Reference
Endpoint:
flammable solids
Type of information:
experimental study
Adequacy of study:
key study
Study period:
10-11-2011
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
guideline study
Remarks:
Modern study conducted under GLP and to appropriate EC method.
Qualifier:
according to
Guideline:
EU Method A.10 (Flammability (Solids))
GLP compliance:
yes (incl. certificate)
Key result
Test procedure:
burning rate test: preliminary screening test
Remarks on result:
substance does not ignite and propagate combustion either by burning with flame or smouldering along 200 mm of the powder train within the 2 minutes test period

In the preliminary study, 4,4 -Biphenol was flammable within 2 min by the flame of a gas burner. Within the ignition zone the test item melted to a black liquid, which also burns. After 4 minutes approximately 1 cm of the cluster was burned down. The test item burned to a black-grey, carbonized residuum.

According to the EU method A.10., as propagation of the flame did not occur over 200 mm of the train then a full test programme is not required.

Interpretation of results:
GHS criteria not met
Conclusions:
The test item, 4,4-Biphenol can be classified as not flammable according to GHS or CLP criteria.
Executive summary:

A preliminary test was conducted on the test substance, biphenyl, 4,4'-diol according to EU Method A.10. A hot flame from a gas burner was applied until the test substance ignited. Within the ignition zone the test item melted to a black liquid, which also burns. After 4 minutes approximately 1 cm of the cluster was burned down. As the flame did not propagate along the train for over 200 mm then a full test programme is not required. The substance can be classified as non-flammable.

Description of key information

The test item, Biphenyl-4,4'-diol can be classified as not flammable according to the GHS or CLP criteria.

Key value for chemical safety assessment

Flammability:
not classified

Additional information

Justification for classification or non-classification

No classification is proposed. There is no evidence that the substance is flammable.