Exo-1,7,7-trimethylbicyclo[2.2.1]heptan-2-ol

Flammability

Link to relevant study record(s)

Reference

Reference 1

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

05 May 2017 - 11 May 2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

Test method according to EEC method A.10. GLP study.

Qualifier:

according to guideline

Guideline:

EU Method A.10 (Flammability (Solids))

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Key result

Test procedure:

burning rate test: preliminary screening test

Remarks:

Test 1

Burning time:

35 s

Key result

Test procedure:

burning rate test: preliminary screening test

Remarks:

Test 2

Burning time:

39 s

Key result

Test procedure:

burning rate test: preliminary screening test

Remarks:

Test 3

Burning time:

33 s

Key result

Test procedure:

burning rate test over 100 mm length

Remarks:

Test 1

Burning time:

18 s

Key result

Test procedure:

burning rate test over 100 mm length

Remarks:

Test 2

Burning time:

19 s

Key result

Test procedure:

burning rate test over 100 mm length

Remarks:

Test 3

Burning time:

17 s

Key result

Test procedure:

burning rate test over 100 mm length

Remarks:

Test 4

Burning time:

16 s

Key result

Test procedure:

burning rate test over 100 mm length

Remarks:

Test 5

Burning time:

18 s

Key result

Test procedure:

burning rate test over 100 mm length

Remarks:

Test 6

Burning time:

18 s

Table 1. Results of the preliminary test.

Test number	Time of burning [s]	Comments
Test-1	35	The sample ignited immediately after the ignition. The train burned completely after about 200 s. A black smoke was emitted during the combustion.
Test-2	39
Test-3	33

Since the result is positive, it was necessary to go to the next stage of determination (burning rate test)

Table 2. Results of the burning rate test

Determination of the burning rate test	Time of burning [s]
Test 1	18
Test 2	19
Test 3	17
Test 4	16
Test 5	18
Test 6	18

The shortest time of burning: (16.0 ± 1.8) s.

The rate of burning: (6.25 ± 0.71) mm/s.

Interpretation of results:

study cannot be used for classification

Conclusions:

Isoborneol is highly flammable in accordance with EU method A.10. criteria.

Executive summary:

The flammability of the test item was determined according to EU Method A.10 (GLP study). For a preliminary screening test (3 replicates), the substance was formed into an unbroken strip or powder train about 250 mm long by 20 mm wide by 10 mm high on a non-combustible, non-porous and low heat-conducting base plate, and a hot flame was applied to one end of the powder train. The sample ignited immediately after the ignition and the time of burning was less than 4 min in each test therefore the main test (burning rate test) was conducted. The burning rate test was run (6 replicates) in the same conditions as the preliminary test and the test item is considered to be as highly flammable as the burning time in any test is less than 45 seconds.

Reference 2

Endpoint:

pyrophoric solids

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

the study does not need to be conducted because the substance is known to be stable in contact with air at room temperature for prolonged periods of time (days) and hence, the classification procedure does not need to be applied

Justification for type of information:

JUSTIFICATION FOR DATA WAIVING
The test was not performed experimentally because practical experience, e.g. in manufacture or handling shows that the substance does not ignite spontaneously on coming into contact with air at normal temperatures (i.e. the substance is known to be stable at
room temperature for prolonged periods of time (days). The test substance is therefore regarded as not being pyrophoric.

Reference 3

Endpoint:

substances / mixtures which in contact with water emit flammable gases

Data waiving:

study scientifically not necessary / other information available

Justification for data waiving:

the study does not need to be conducted because the experience in production or handling shows that the substance does not react with water, e.g. the substance is manufactured with water or washed with water

Justification for type of information:

JUSTIFICATION FOR DATA WAIVING
The test was not performed experimentally because practical experience exists at the sponsor and the test facility, e.g. when preparing test substance solutions for testing for biodegradation. The test substance in contact with water do not develop any gas at all, therefore is regarded as not being flammable in contact with water.

Reference 4

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

16 October 2017

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Remarks:

Test method according to UN test N.1

Qualifier:

according to guideline

Guideline:

UN Manual of Tests and Criteria: Test N.1 (Test method for readily combustible solids)

Deviations:

no

GLP compliance:

no

Other quality assurance:

ISO/IEC 17025 (General requirements for the competence of testing and calibration laboratories)

Key result

Test procedure:

burning rate test: preliminary screening test

Remarks:

Test 1

Burning time:

22 s

Key result

Test procedure:

burning rate test: preliminary screening test

Remarks:

Test 2

Burning time:

24 s

Key result

Test procedure:

burning rate test: preliminary screening test

Remarks:

Test 3

Burning time:

21 s

Key result

Test procedure:

burning rate test with wetted zone

Remarks:

Test 1

Burning time:

11 s

Remarks on result:

flame passes the wetted zone

Key result

Test procedure:

burning rate test with wetted zone

Remarks:

Test 2

Burning time:

10 s

Remarks on result:

flame passes the wetted zone

Key result

Test procedure:

burning rate test with wetted zone

Remarks:

Test 3

Burning time:

10 s

Remarks on result:

flame passes the wetted zone

Key result

Test procedure:

burning rate test with wetted zone

Remarks:

Test 4

Burning time:

9 s

Remarks on result:

flame passes the wetted zone

Key result

Test procedure:

burning rate test with wetted zone

Remarks:

Test 5

Burning time:

11 s

Remarks on result:

flame passes the wetted zone

Key result

Test procedure:

burning rate test with wetted zone

Remarks:

Test 6

Burning time:

10 s

Remarks on result:

flame passes the wetted zone

Table 1. Results of the preliminary test.

Test number	Time of burning [s]	Comments
Test-1	22	Sample melted and then ignited spontaneously in the place of applying  the flame of burner. The flame was propagated on the all sample. The sample was completely burned.
Test-2	24
Test-3	21

Since the result is positive, it was necessary to go to the next stage of determination (burning rate test)

Table 2. Results of the burning rate test

Burning rate test	Burning time [s]	Does a wetted zone stop burning for at least 4 minutes?
Test - 1	11	no
Test - 2	10	no
Test - 3	10	no
Test - 4	9	no
Test - 5	11	no
Test - 6	10	no
The shortest burning time [s]	9.0 ± 1.0
Burning rate [mm/s]	11.1 ± 1.3

Interpretation of results:

other: flammable solid category 1 (CLP Regulation EC no. 1272/2008)

Conclusions:

Isoborneol is a readily combustible solid in accordance with UN test N.1.

Executive summary:

The flammability of the test item was determined according to UN test N.1 (ISO 17025 study). In the preliminary test (3 replicates) the test substance ignited spontaneously and the flame was propagated along the 200 mm of the powder train within the 2 minute test period, therefore the main test (burning rate test) was conducted. This test was performed six times with 1 ml of a wetting solution added to the pile 30-40 mm beyond the 100 mm timing zone and in every case the burning time was less than 45 seconds (and burning rate greater than 2.2 mm/s) and also the flame passed the wetted zone. Thus, the test item was determined to be a readily combustible solid.

Description of key information

Flammability: Key study. Method according to EU Method A.10, GLP study. The test item is highly flammable.

Flammability: Key study. Method according to UN Method N.1, ISO 17025 study. The test item is a readily combustible solid and should be classified as flammable solid category 1 according to CLP

Regulation EC no. 1272/2008.

Pyrophoric properties: Data waiving (study scientifically not necessary / other information available): Practical experience in manufacture and handling shows that the substance does not ignite spontaneously on coming into contact with air at normal temperatures.
Flammability in contact with water: Data waiving (study scientifically not necessary / other information available): The substance is not classified as flammable in contact with water based on the experience in handling / use which shows that the substance does not react with water.

Key value for chemical safety assessment

Flammability:

flammable

Additional information

Flammability: Key study. The flammability of the test item was determined according to EU Method A.10 (GLP study). For a preliminary screening test (3 replicates), the substance was formed into an unbroken strip or powder train about 250 mm long by 20 mm wide by 10 mm high on a non-combustible, non-porous and low heat-conducting base plate, and a hot flame was applied to one end of the powder train. The sample ignited immediately after the ignition and the time of burning was less than 4 min in each test therefore the main test (burning rate test) was conducted. The burning rate test was run (6 replicates) in the same conditions as the preliminary test and the test item is considered to be as highly flammable as the burning time in any test is less than 45 seconds.7

Flammability: Key study. After positive result obtained for the test item with EU method A.10 a new flammability test was conducted according to UN test N.1 (ISO 17025 study) in order to determine if

a classification of the substance is necessary. In the preliminary test (3 replicates) the test substance ignited spontaneously and the flame was propagated along the 200 mm of the powder train within the 2

minute test period, therefore the main test (burning rate test) was conducted. This test was performed six times with 1 ml of a wetting solution added to the pile 30-40 mm beyond the 100 mm timing zone and

in every case the burning time was less than 45 seconds (and burning rate greater than 2.2 mm/s) and also the flame passed the wetted zone. Thus, the test item was determined to be a readily combustible

solid and thus it should be classified as flammable solid category 1 according to CLP Regulation EC no. 1272/2008.

Pyrophoric properties: Data waiving (study scientifically not necessary / other information available): Practical experience in manufacture and handling shows that the substance does not ignite spontaneously on coming into contact with air at normal temperatures.
Flammability in contact with water: Data waiving (study scientifically not necessary / other information available): The substance is not classified as flammable in contact with water based on the experience in handling / use which shows that the substance does not react with water.

Justification for classification or non-classification

Based on result obtained with UN test N.1, the substance is classified as flammable solid (category 1) in accordance with CLP Regulation (EC) no. 1272/2008.