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Administrative data

Description of key information

Repeated dose toxicity is driven by the characteristics of the individual UVCB constituents.
Relevant information on the individual UVCB constituents is reported in Section 7 Summary.

Key value for chemical safety assessment

Repeated dose toxicity: via oral route - systemic effects

Link to relevant study records
Reference
Endpoint:
repeated dose toxicity: oral, other
Remarks:
prediction from hazard class
Type of information:
calculation (if not (Q)SAR)
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Automatic calculation with MeCLas tool
Reason / purpose:
reference to same study
Reason / purpose:
reference to other study
Principles of method if other than guideline:
Repeated dose toxicity potential of the UVCB was determined by classifying based on Mixture rules from EU CLP (additivity formula of classified components to derive hazard class). The classification criteria were used to estimate effects.
Basis for effect level:
other: target organ toxicity
Remarks on result:
other: at least one component with animal studies with significant and/or severe toxic effects at moderate exposure concentration
Critical effects observed:
not specified

According to MeClas, the substance is classified as STOT-RE Cat. 2 - H373.

Conclusions:
Good quality study with result derived on basis of the Classification outcome (Mixture toxicity rules) from the reasinable worst case sample of the substance (maximum of typicals across industry as defined in IUCLID section 1.2/1.4). The analysed UVCB sample is classified for STOT-RE Cat. 2.
Executive summary:

The study provided a conservative estimate, derived on basis of the classification outcome (mixture toxicity rules) from a reasonable worst-case sample of the substance using mineralogical information from the representative sample. 

 

Validity of the model used:

1. Defined endpoint: the endpoint is a REACH compliant defined endpoint

2. Unambiguous algorithm: EU CLP guidance based summation formula to determine classification, followed by back-calculation to related hazard criteria

3. Applicability domain: applicable to classify complex metal containing materials. 

4. Mechanistic interpretation - metal species: the tool translates the elemental composition into a mineralogical composition relevant for classification.

Endpoint conclusion
Endpoint conclusion:
adverse effect observed
Organ:
kidney

Additional information

Justification for classification or non-classification