Registration Dossier

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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Administrative data

Workers - Hazard via inhalation route

Systemic effects

Long term exposure
Hazard assessment conclusion:
no hazard identified
Acute/short term exposure
Hazard assessment conclusion:
no hazard identified
DNEL related information

Local effects

Long term exposure
Hazard assessment conclusion:
DNEL (Derived No Effect Level)
Value:
0.2 mg/m³
Most sensitive endpoint:
repeated dose toxicity
DNEL related information
DNEL derivation method:
ECHA REACH Guidance
Overall assessment factor (AF):
25
Dose descriptor:
NOAEC
AF for dose response relationship:
1
AF for differences in duration of exposure:
2
Justification:
subchronic to chronic
AF for interspecies differences (allometric scaling):
1
Justification:
from inhalation study
AF for other interspecies differences:
2.5
AF for intraspecies differences:
5
AF for the quality of the whole database:
1
AF for remaining uncertainties:
1
Acute/short term exposure
Hazard assessment conclusion:
no hazard identified
DNEL related information

Workers - Hazard via dermal route

Systemic effects

Long term exposure
Hazard assessment conclusion:
no hazard identified
Acute/short term exposure
Hazard assessment conclusion:
no hazard identified
DNEL related information

Local effects

Long term exposure
Hazard assessment conclusion:
no hazard identified
Acute/short term exposure
Hazard assessment conclusion:
no hazard identified

Workers - Hazard for the eyes

Local effects

Hazard assessment conclusion:
no hazard identified

Additional information - workers

General Population - Hazard via inhalation route

Systemic effects

Long term exposure
Hazard assessment conclusion:
no hazard identified
Acute/short term exposure
Hazard assessment conclusion:
no hazard identified
DNEL related information

Local effects

Long term exposure
Hazard assessment conclusion:
DNEL (Derived No Effect Level)
Value:
0.05 mg/m³
Most sensitive endpoint:
repeated dose toxicity
DNEL related information
DNEL derivation method:
ECHA REACH Guidance
Overall assessment factor (AF):
50
Dose descriptor:
NOAEC
AF for dose response relationship:
1
AF for differences in duration of exposure:
2
Justification:
subchronic to chronic
AF for interspecies differences (allometric scaling):
1
Justification:
from an inhalation study
AF for other interspecies differences:
2.5
AF for intraspecies differences:
10
AF for the quality of the whole database:
1
AF for remaining uncertainties:
1
Acute/short term exposure
Hazard assessment conclusion:
no hazard identified
DNEL related information

General Population - Hazard via dermal route

Systemic effects

Long term exposure
Hazard assessment conclusion:
no hazard identified
Acute/short term exposure
Hazard assessment conclusion:
no hazard identified
DNEL related information

Local effects

Long term exposure
Hazard assessment conclusion:
no hazard identified
Acute/short term exposure
Hazard assessment conclusion:
no hazard identified

General Population - Hazard via oral route

Systemic effects

Long term exposure
Hazard assessment conclusion:
no hazard identified
Acute/short term exposure
Hazard assessment conclusion:
no hazard identified
DNEL related information

General Population - Hazard for the eyes

Local effects

Hazard assessment conclusion:
no hazard identified

Additional information - General Population

No risk is expected as the substance is used or marketed in such a way that direct or indirect exposure of the general public is negligible.

Unbound Terracess TF, either as the pure substance or in mixtures, is not used outside of industrial sites. The substance is an asbestos replacement. Terracess TF is used in the motor industry in the manufacture of friction brake pads. The substance is mixed with other materials such as carbon and steel wool, sometimes under increased temperature, then pressed to form pod car parts. Once the Terracess TF powder has been incorporated into the metal matrix, no significant release of the material from the matrix is anticipated, so while Terracess TF may be used in the preparation of articles which may be sold to the general public, it is considered that there will be negligible exposure of the general public through such articles.

During industrial processing, Terracess TF is not released to liquid waste streams; the only opportunity for release to the environment is occasional disposal of the grinding machine filter. The filter is disposed of as solid waste in compliance with applicable state laws therefore exposure of the environment is anticipated to be minimal. The use of the brake pads in motor vehicle will result in diffuse emissions of the substance in the environment (road borders and surrounding environment) due to abrasion. Based on this environmental release assessment, exposure of Terracess TF to the general public via the environment is negligible.