Working with Alumino-Silicate Glass Wools (ASW)
also called Refractory Ceramic Fibres (RCF)

These documents apply only to ASW/RCF definied as MMVF in EU Regulation 97/69/EC.

Background

Alumino-Silicate Wool (ASW/RCF) has been classified by the European Union as a Category 2 carcinogen meaning that it "should be regarded as if it is carcinogenic to humans". The carcinogen decision was based solely on the findings of animal experiments. Although ASW/RCF has been used for more than 50 years, no single associated case of fibrosis, lung cancer or mesothelioma has been observed in humans.

If there is any risk, it is not from the ASW/RCF products themselves but from the inhalation of the fibrous dust released. If such a release exists, it should be minimized, and as a consequence of the classification, some additional precautions are now mandatory. For these reasons, care needs to be taken when working with ASW/RCF and here we outline a series of precautions specific to the handling of ASW/RCF products. These are based on the more general requirements for the protection of workers from carcinogens at the workplace.

ASW/RCF products should be limited to professional use in well-organized workplaces. Statutory or other applicable exposure limit values for ASW/RCF dust need to be observed and exposure should be reduced to as low a level as is technically possible. Please check your local and national regulations and exposure limits before working with ASW/RCF. You should document your reasons for using this material and also comply with various other administrative measures. As these measures differ from region to region, they cannot be listed here; ECFIA or your local supplier will help you comply with these requirements.

These documents provide specific advice on the appropriate handling of ASW/RCF products.