terephtalic acid compound with diamines

Flammability

Link to relevant study record(s)

Reference

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

key study

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.10 (Flammability (Solids))

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Specific details on test material used for the study:

SOURCE OF TEST MATERIAL
- Source and lot/batch No.of test material: NC2000S GG151024-03 BIN1.3- White crystalline solid
- Expiration date of the lot/batch: 01 April 2019
- Purity test date: 100%

STABILITY AND STORAGE CONDITIONS OF TEST MATERIAL
- Storage condition of test material: Roomtemperature in the dark
- Stability under test conditions: stable

OTHER SPECIFICS: not applicable

Key result

Test procedure:

burning rate test: preliminary screening test

Burning time:

>= 2 min

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

Interpretation of results:

not classified based on GHS criteria

Conclusions:

The test "item has been determined to- be not. highly flammable-as it failed to ignite in the
preliminary screening- test.

Executive summary:

1,4—Benzenedicarboxylic- acid; camp; with I_,4_—b.utanedjamine and '1,6-hexanediamine has

beendetermined to be'not'highly flammable, using aprtmedure designed to be compatible

with Method-A. 10':'F1ammability'(Solids) of Comini'ssiOnRegulation (EC) No 44052008." of

'30 May 2008.

Key value for chemical safety assessment

Flammability:

not classified

Justification for classification or non-classification

The classification was made considering ECHA (2013) guidance and the 10th ATP of Regulation (EC) 1272/2008 of the European Parliament and of the Council) as implementation of UN-GHS in the EU.

Physical state definitions (Regulation (EC) No 1272/2008 on Classification, Labelling and Packaging of substances and mixtures of 14 May 2009, Annex I: Part 1, 1.0.):

Gas means a substance which:

(i) at 50 °C has a vapour pressure greater than 300 kPa (absolute); or

(ii) is completely gaseous at 20 °C at a standard pressure of 101.3 kPa;

Liquid means a substance or mixture which:

(i) at 50 °C has a vapour pressure of not more than 300 kPa (3 bar);

(ii) is not completely gaseous at 20 °C and at a standard pressure of 101,3 kPa; and

(iii) which has a melting point or initial melting point of 20 °C or less at a standard pressure of 101,3 kPa;

Solid means a substance or mixture which does not meet the definitions of liquid or gas.

Classification of flammable solids is based upon their burning behaviour and powdered, granular or pasty substances or mixtures may be tested using method N.1 (Test method for readily combustible solids) as described in the UN Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria, Part III, sub-section 33.2.1.4. Depending on the burning rate, one of two categories will be assigned.

Essentially, the test methods EU A.10 and UN N.1 are nearly identical, but N.1 has an additional criterion, a wetted zone. Depending on the ability of the wetting zone to stop the fire or not, CLP classifies substances and mixtures other than metals into either category 1 or 2, respectively.

Additionally solids causing fire through friction shall be classified. CLP Annex I: 2.7.1.1., p 127, defines “A flammable solid means a solid which is readily combustible, or may cause or contribute to fire through friction. Readily combustible solids are powdered, granular, or pasty substances or mixtures which are dangerous if they can be easily ignited by brief contact with an ignition source, such as a burning match, and if the flame spreads rapidly.”

It is considered needless to perform another experimental approach employing Method UN N.1. The differences in the test designs are irrelevant, since all attempts to ignite of the submission item failed. Ignition of the submission item by friction is unlikely according to the above mentioned experiments and the experience of production and use. The submission item is thus

not classified

ECHA European Chemicals Agency (2013). Guidance on the Application of the CLP Criteria. Guidance to Regulation (EC) No 1272/2008 on classification, labelling and packaging (CLP) of substances and mixtures. Version 4.0. Self-published, Helsinki, Finland in November, Reference ECHA-12 -G-06-EN. 662 p.