2020 GA Meeting May 6th in Kristiansand (KRS), Norway

2019 GA MEETING

The 2019 GA meeting which took place on Wednesday 8 May 2019 in Madrid, Spain was a resounding success. Hosted by FerroGlobe, the meeting which lasted 4 hours saw several deliberations related to the consortium governace, dossier updates and classification & labelling. Some key decisions taken by way of vote are as follows:

Some highlights:

  • Executive Committee: A new Chairmanand  a new 2nd Vice Chairman were appointed, meanwhile the 1st Vice Chiarman was maintained to enure continuity 
  • Dossier updates: Reveal changes in classification and labelling if compared to the 2010 submitted dossiers
  • Approval of the 2018 workplan and budget
  • Brexit and data: Mara will continue to support REACH registration inside and outside the EU (UK REACH inclusive) but at a charge yet to be determined 

DETERMINATION OF SKIN IRRITATION POTENTIAL/ Sinter ore (Manganese ores, reduced)/ GLP

Introduction. The purpose of this test was to evaluate the skin irritation potential of the test material using the EPISKINTM reconstituted human epidermis model after a treatment period of 15 minutes followed by a post-exposure incubation period of 42 hours. The principle of the assay was based on the measurement of cytotoxicity in reconstituted human epidermal cultures following topical exposure to the test material by means of the colourimetric MTT reduction assay. Cell viability is measured by enzymatic reduction of the yellow MTT tetrazolium salt (3-[4,5-dimethylthiazol-2-yl]-2,5-diphenyl-tetrazolium bromide) to a blue formazan salt (within the mitochondria of viable cells) in the test material treated tissues relative to the negative controls. The concentration of the inflammatory mediator IL-α in the culture medium retained following the 42-hour post-exposure incubation period is also determined for test materials which are found to be borderline non-irritant based upon the MTT reduction endpoint. This complimentary

end-point will be used to either confirm a non-irritant result or will be used to override the non-irritant result.

 

Conclusion: The test material was considered to be Non-Irritant.

 

To obtain the full study, please contact: reach@manganese.org

 

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