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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.

The new ECHA CHEM database has been released by ECHA, and it now contains all REACH registration data. There are more details on the transition of ECHA's published data to ECHA CHEM here.

Diss Factsheets

Physical & Chemical properties

Density

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Administrative data

Link to relevant study record(s)

Reference
Endpoint:
density, other
Remarks:
real density
Type of information:
experimental study
Adequacy of study:
key study
Study period:
2012-11-27
Reliability:
1 (reliable without restriction)
Rationale for reliability incl. deficiencies:
test procedure in accordance with national standard methods
Qualifier:
according to guideline
Guideline:
other: DIN 51901
Deviations:
no
Type of method:
pycnometer method
Key result
Type:
density
Density:
1.78 g/cm³
Temp.:
25 °C
Conclusions:
The real density of the test item (milled carbonised PAN based fibre) is 1.780 g/cm³ at 25 °C.
Executive summary:

The real density of the test item (milled carbonised PAN based fibre) is 1.780 g/cm³ at 25 °C as determined according to DIN 51901.

Description of key information

The real density of the tested substance (milled carbonised PAN based fibre) is 1.780 g/cm³ at 25 °C as determined according to DIN 51901.

Key value for chemical safety assessment

Relative density at 20C:
1.78

Additional information

The different manufacturing processes and precursor materials for the carbon fibres within the scope of this registration lead to slightly different elemental compositions. Significant differences in the density of the fibres are not expected.

Therefore, the obtained test result is regarded to also cover all other qualities of the substance non-graphitic carbon fibre within the scope of this registration.