5-fluoro-2-methoxypyrimidin-4(3H)-one

Flammability

Link to relevant study record(s)

Reference

Endpoint:

flammable solids

Type of information:

experimental study

Adequacy of study:

key study

Study period:

01 August 2005

Reliability:

1 (reliable without restriction)

Rationale for reliability incl. deficiencies:

guideline study

Qualifier:

according to guideline

Guideline:

EU Method A.10 (Flammability (Solids))

Version / remarks:

1992

Deviations:

no

GLP compliance:

yes (incl. QA statement)

Key result

Test procedure:

burning rate test over 100 mm length

Burning time:

64 s

Preliminary test

- Humidity: about 35 %

- Room temperature: about 22 °C

- Atmospheric pressure: 94.7 kPa

The test material ignited and the flame propagated on 20 cm in 2 min and 26 s. The test material was consumed completely and a little brown liquid was formed.

Main test

- Humidity: about 34 %

- Room temperature: about 23 °C

- Atmospheric pressure: 94.7 kPa

Table 1: Summary of Burning Rate Test Results

Assay No.	Burning time (s)	Observations
1	77	The test material ignited and the flame propagated; the test material was consumed completely and a little brown liquid was formed.
2	78
3	64
4	66
5	68
6	72

The shortest burning time obtained was 64 s

Interpretation of results:

other: Not classified in accordance with EU criteria

Conclusions:

Under the conditions of this study, the test material was not considered as highly flammable.

Executive summary:

The flammability of the test material was investigated in a study which was performed in accordance with the standardised guideline EU Method A.10 under GLP conditions.

A preliminary study was conducted followed by a main test. The test material was placed loosely into a mould, a non-combustible and nonporous plate was placed on top of the mould, the apparatus inverted and the mould removed. One end of the pile was ignited. When the pile has burned over a distance of 80 mm, the rate of burning over the next 100 mm was measured. The test was performed six times.

During the main test, the test material ignited and the flame propagated. The test material was consumed completely and a small amount of brown liquid was formed. The shortest burning time obtained was 64 s.

Under the conditions of this study, the test material was not considered as highly flammable.

Description of key information

Under the conditions of this study, the test material was not considered as highly flammable.

Key value for chemical safety assessment

Flammability:

not classified

Additional information

The flammability of the test material was investigated in a study which was performed in accordance with the standardised guideline EU Method A.10 under GLP conditions. The study was awarded a reliability score of 1 in accordance with the criteria set forth by Klimisch et al. (1997).

A preliminary study was conducted followed by a main test. The test material was placed loosely into a mould, a non-combustible and nonporous plate was placed on top of the mould, the apparatus inverted and the mould removed. One end of the pile was ignited. When the pile has burned over a distance of 80 mm, the rate of burning over the next 100 mm was measured. The test was performed six times.

During the main test, the test material ignited and the flame propagated. The test material was consumed completely and a small amount of brown liquid was formed. The shortest burning time obtained was 64 s.

Under the conditions of this study, the test material was not considered as highly flammable.

Justification for classification or non-classification

In accordance with the criteria for classification as defined in Annex I, Regulation (EC) No 1272/2008, the substance does not require classification with respect to flammability.