Flue dust, precious metal refining

Endpoint summary

Key value for chemical safety assessment

Skin sensitisation

Link to relevant study records

Reference

Endpoint:

skin sensitisation

Remarks:

other: prediction from hazard class

Type of information:

calculation (if not (Q)SAR)

Remarks:

Migrated phrase: estimated by calculation

Adequacy of study:

key study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: calculation tool MeClas (www.meclas.eu) is used

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:

The C&L for skin sensitisation of "Flue dust, precious metal refining" was determined by using the “Classification criteria for mixtures” of Regulation (EC) 1272/2006 section 3.4.3.3.1 “Classification of mixtures when data are available for all components or only for some components of the mixture”. For detailed information for classification strategy of UVCBs please refer to IUCLID section 13 (attachment “PMC Classification method”).

GLP compliance:

no

Type of study:

other: calculation

Flue dust, precious metal refining is a complex metal containing UVCB substance with wide concentration ranges for each constituent. Each individual constituent of Flue dust, precious metal refining may contribute (as 'relevant' component) to the UVCB toxicity. With knowledge of the composition, mineralogical information and knowledge of corresponding toxicity of the various chemical species, the respective mixture rules in accordance with Regulation (EC) 1272/2008 are used to calculate the C&L of Flue dust, precious metal refining.

MeClas was used to automatically calculate the classification of the UVCB substance. The calculation tool is based on a database containing the human and environmental hazard information for each component relevant for classification. The information on the representative mineralogical composition (distribution pattern for each constituent of the UVCB substance) is incorporated into MeClas as well.

 

From the derived hazard category (output of MeClas) the corresponding human health (HH) toxicity value was deduced.

 

The following data were used as input of MeClas:

 

1. Classification from individual components according to Annex VI of the CLP regulation (Regulation (EC) 1272/2008) and the 2nd ATP to this regulation, unless additional information on self-classification was used.

 

2. Percentage of the components in the UVCB: individual total element concentrations (percentages based on total substance amount) were recalculated into percentage of the classified chemical species (i.e. substance), taking into account the distribution pattern of the respective element in its present various mineral forms if such information was available.

Interpretation of results:

sensitising

Remarks:

Migrated information Criteria used for interpretation of results: EU

Conclusions:

"Flue dust, precious metal refining" possesses a skin sensitisation potential in accordance with Guidance on the application of the CLP criteria, Version 4.0 - November 2013. Hence, "Flue dust, precious metal refining" (Flue 1 - Flue dust 3) does require classification as skin sensitiser in accordance with Regulation (EC) 1272/2008 Skin Sens. 1 (H317).

Executive summary:

The described MeClas-based-calculation provides a conservative estimate of toxicological effects of "Flue dust, precious metal refining", derived on basis of the mixture C&L rules set forth in Regulation (EC) 1272/2008 using mineralogical information from a representative/worst case sample.

Endpoint conclusion

Endpoint conclusion:

adverse effect observed (sensitising)

Additional information:

Substance specific information for the UVCB substance "Flue dust, precious metal refining" is not available for the endpoint "Sensitisation". In order to meet the requirements for Annex VII till Annex X of Regulation (EC) 1907/2006, read across information from any constituents being relevant needs to be included.

In total three different grades of "Flue dust, precious metal refining" (Flue dust 1 – Flue dust 3) were identified by the consortium that could be grouped according to their calculated C&L resulting from the individual composition. Thus, for Flue dust one C&L entry for Skin Sensitisation (Skin Sens. 1) was calculated.

Migrated from Short description of key information:
No information on animal testing of Flue dust is available. Since, Flue dust composition profile 1 till composition profile 2 (Flue dust 1 - Flue dust 2) contains a constituent ≥ 0.1 % (i.e., nickel) that may cause skin sensitisation (Skin Sens. 1A); the substance must be classified as being a skin sensitiser, Skin Sens. 1 (H317). It is noted that no sub-categorisation was performed.

Respiratory sensitisation

Link to relevant study records

Reference

Endpoint:

respiratory sensitisation

Remarks:

other:

Type of information:

calculation (if not (Q)SAR)

Remarks:

Migrated phrase: estimated by calculation

Adequacy of study:

key study

Reliability:

2 (reliable with restrictions)

Rationale for reliability incl. deficiencies:

other: calculation tool MeClas (www.meclas.eu) is used

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:

The C&L for respiratory sensitisation of "Flue dust, precious metal refining" (Flue dust 1- Flue dust 2) was determined by using the “Classification criteria for mixtures” of Regulation (EC) 1272/2006 section 3.4.3.3.1 “Classification of mixtures when data are available for all components or only for some components of the mixture”. For detailed information for classification strategy of UVCBs please refer to IUCLID section 13 (attachment “PMC Classification method”).

GLP compliance:

no

Flue dust, precious metal refining is a complex metal containing UVCB substance with wide concentration ranges for each constituent. Each individual constituent of Flue dust, precious metal refining may contribute (as 'relevant' component) to the UVCB toxicity. With knowledge of the composition, mineralogical information and knowledge of corresponding toxicity of the various chemical species, the respective mixture rules in accordance with Regulation (EC) 1272/2008 are used to calculate the C&L of Flue dust, precious metal refining.

MeClas was used to automatically calculate the classification of the UVCB substance. The calculation tool is based on a database containing the human and environmental hazard information for each component relevant for classification. The information on the representative mineralogical composition (distribution pattern for each constituent of the UVCB substance) is incorporated into MeClas as well.

 

From the derived hazard category (output of MeClas) the corresponding human health (HH) toxicity value was deduced.

 

The following data were used as input of MeClas:

 

1. Classification from individual components according to Annex VI of the CLP regulation (Regulation (EC) 1272/2008) and the 2nd ATP to this regulation, unless additional information on self-classification was used.

 

2. Percentage of the components in the UVCB: individual total element concentrations (percentages based on total substance amount) were recalculated into percentage of the classified chemical species (i.e. substance), taking into account the distribution pattern of the respective element in its present various mineral forms if such information was available.

Interpretation of results:

not sensitising

Conclusions:

Flue dust, precious metal refining (Flue dust 1 Flue dust 2) does not contain any constituent ≥ 0.1 % (w/w) that may cause respiratory sensitisation. Hence, the substance must not be classified as respiratory sensitiser in accordance with Regulation (EC) 1272/2008.

Executive summary:

The described MeClas-based-calculation provides a conservative estimate of toxicological effects of "Flue dust, precious metal refining", derived on basis of the mixture C&L rules set forth in Regulation (EC) 1272/2008 using mineralogical information from a representative/worst case sample.

Endpoint conclusion

Endpoint conclusion:

no adverse effect observed (not sensitising)

Additional information:

Substance specific information for the UVCB substance "Flue dust, precious metal refining" is not available for the endpoint "Sensitisation". In order to meet the requirements for Annex VII till Annex X of Regulation (EC) 1907/2006, read across information from any constituents being relevant needs to be included.

In total three different grades of "Flue dust, precious metal refining" (Flue dust 1 – Flue dust 3) were identified by the consortium that could be grouped according to their calculated C&L resulting from the individual composition. Thus, for Flue dust two C&L entries for respiratory sensitisation (no C&L and respiratory sensitiser Cat. 1) was calculated. Each group is described in a separate endpoint study record and endpoint summary.

Migrated from Short description of key information:
No information on animal testing of Flue dust is available. Since, Flue dust (Flue dust 1 and Flue dust 2) does not contain any constituent ≥ 0.1 % (w/w) that may cause respiratory sensitisation, the substance must not be classified as respiratory sensitiser.

Justification for classification or non-classification

Skin sensitisation

Flue dust 1 – Flue dust 3 possesses a skin sensitisation potential in accordance with Guidance on the application of the CLP criteria, Version 4.0 - November 2013. Hence, Flue dust 1 – Flue dust 3 does require classification as skin sensitiser in accordance with Regulation (EC) 1272/2008 Cat. 1 (H317).

Respiratory sensitisation

Furthermore, Flue dust (Flue dust 1 and Flue dust 2) does not contain any constituent ≥ 0.1 % (w/w) that may cause respiratory sensitisation. Hence, the substance must not be classified as respiratory sensitiser in accordance with Regulation (EC) 1272/2008.