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Please be aware that this old REACH registration data factsheet is no longer maintained; it remains frozen as of 19th May 2023.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

Toxicological information

Repeated dose toxicity: inhalation

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Administrative data

Endpoint:
sub-chronic toxicity: inhalation
Remarks:
predicted from hazard class
Type of information:
calculation (if not (Q)SAR)
Remarks:
estimated by calculation
Adequacy of study:
key study
Reliability:
2 (reliable with restrictions)
Rationale for reliability incl. deficiencies:
other: Automatic calculation with MeClas tool
Cross-reference
Reason / purpose for cross-reference:
reference to same study

Data source

Reference
Reference Type:
other: software
Title:
Unnamed
Year:
2019

Materials and methods

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.

Test material

Constituent 1
Reference substance name:
Lead, bullion
EC Number:
308-011-5
EC Name:
Lead, bullion
Cas Number:
97808-88-3
Molecular formula:
Molecular weight/formula concept not applicable to Inorganic UVCB (comlex metal containing substance)
IUPAC Name:
Lead, bullion
Details on test material:
Reasonable worst-case across industry, as reported in Section 1.2.
Representative sample for mineralogical information is provided in IUCLID section 4.27

Results and discussion

Effect levels

Remarks on result:
other: classification based on MeClas calculation
Remarks:
at least one component with reliable and good quality evidence from human cases or epidemiological studies

Target system / organ toxicity

Critical effects observed:
not specified

Any other information on results incl. tables

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

Applicant's summary and conclusion

Conclusions:
Good quality study with result derived on basis of the Classification outcome (Mixture toxicity rules) from the reasonable worst case sample of the substance (maximum of typicals across industry as defined in IUCLID section 1.2/4.27). The compositions considered 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.

Cross-reference to other study
IUCLID Section 1.4 Analytical information:
• for company specific elemental composition of the UVCB substance
• for details on the approach followed for Tiered classification (strategies for sample selection and testing).
IUCLID Section 4.8 Water solubility
IUCLID Section 4.5 Particle size distribution
IUCLID Section 4.23 Additional Phys-chem info: chemical & mineralogical info of representative sample