Slimes and sludges, electrolytic refining of tin, lead and silver containing alloy

Endpoint summary

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

Remarks:

other: 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 for cross-reference:

reference to same study

Reason / purpose for cross-reference:

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.

Dose descriptor:

other: target organ toxicity

Effect level:

other: at least one component has reliable and good quality evidence from human cases or epidemiological studies or animal studies with significant and/or severe toxic effects at low exposure concentrations

Basis for effect level:

other: not specified

Remarks on result:

other: calculations with MeClass-tool

Critical effects observed:

not specified

According to MeClas, the substance is classified as STOT-RE Cat. 1 - H372.

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. 1.

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