The term “refractory ceramic fibre” (RCF) describes a family of synthetic vitreous fibres that have a range of compositions and uses. The only 'official' definition of these materials is that given under the Chemical Abstract Service (CAS) number 142844-00-6.
RCF has been classified by the European Union as a category 2 carcinogen that is it “should be regarded as if it is carcinogenic to man”. It has also been classified as an “irritant”. The categorisation of RCF as a carcinogen was solely based on results undertaken in animal experiments. Although RCF has been used for nearly 40 years and no significant health effects have been identified in humans.
Commonly in the UK MMMF (Man Made Mineral Fibre) are termed RCF without any definition of chemical composition being carried out, both are sub divisions of machine-made vitreous (silicate) fibres (MMVF). The difference in chemical composition being:
- Mineral wools: MMVF with random orientation with alkaline oxide and alkaline earth oxide (Na2O+K2O+CaO+MgO+BaO) content greater than 18% and
- Refractory ceramic fibres and special purpose fibres: MMVF with random orientation with alkaline oxide and alkaline earth oxide (Na2O+K2O+CaO+MgO+BaO) content less than 18%
Mineral wools (glass wool and rock wool) are used in a range of insulation applications in both buildings and appliances. RCF are used in specialised applications in industry where very high temperatures are encountered e.g. some furnace and kiln insulation.
Redhills are able to provide:
- Workplace risk assessments
- Desktop reviews
- Task based assessment and monitoring service
