European Regulatory Update

Please read below for latest on European legislation and alumina fibres

European Directive 97/69/EC – Classification, Packaging & Labelling of Dangerous Substances

Within the EU all Member states are required to implement a common framework for hazardous substance classification and labelling, based on Directive 67/548/EC. A Working Group of the European commission DG Environment (then DGXI) reviewed the position of man-made mineral vitreous [silicate] fibres (MMVFs). The parent directive was then amended by directive 97/69/EC in November 1997.
Saffil fibre wools are polycrystalline, not vitreous, and so were not assessed under this directive.
Since polycrystalline wools are not affected by this directive there is no legal obligation to provide hazard warning labels on Saffil products (unless a risk assessment indicates there is a need to self-classify) and whether or not to apply voluntary labelling is therefore a decision for individual companies.
European Directive 2000/53/EC – End of Vehicle Life
The End of Life Vehicle Directive of 18 September 2000 requires manufacturers to seek alternatives where the use of hazardous materials affects recovery and recycling capability.
The directive clearly defines “hazardous material” as any substance which is considered dangerous under Directive 67/548/EC (97/69/EC).
Since Saffil polycrystalline wool products are outside the scope of Directive 67/548/EC they are not affected by Directive 2000/53/EC.

REACH

Future updates of this document will include information on REACH as the requirements become clearer.

IARC

In 1988 IARC considered the carcinogenicity of several groups of fibres. One grouping they defined consigned a range of disparate fibre types (polycrystalline, refractory ceramic fibre referred to as RCF and single crystal whiskers) into a single category they termed “ceramic fibres”. The text of the resulting monogram clearly indicated that available test data with Saffil polycrystalline fibres were negative, but according to the IARC rules positive results with other types of fibre meant that the whole grouping was considered as Category 2B (possible carcinogen).
IARC decisions are not binding for labelling in Europe, but must be taken into account in the USA.

Update on the German Regulatory Position

In the interests of free trade EU member states do not have the powers to implement local regulations for hazard-classification and labelling of substances and preparations. Nevertheless, each member state has the right to enforce additional worker protection regulations. In Germany this has happened to all mineral wools, classified or not, and includes the dust generated from polycrystalline wools.

1. TRGS 905

TRGS 905 provides technical guidance on worker protection and can be regarded as a national supplement to annex 1 of EU Directive 67/548 but is not limited to those substances listed in that annex. Although the TRGSs are not laws they are technical rules/recommendations which have a quasi-legal status. They are referred to in national law requiring employees to comply with their recommendations
Manufacturers and importers of polycrystalline wool products must therefore respect the provisions of TRGS 905 and implement measures to avoid excessive exposure to fibrous dust.
TRGS 905 contains a list of substances that can release dusts which are classified as carcinogenic. This list includes dusts generated from substances or preparations which may not have been classified by the EU. The dusts are classified into categories K1, K2 or K3 which are broadly equivalent to the European categories 1, 2 and 3.
Polycrystalline wools are not named specifically but are included as one of the substances that could release fibrous dust containing “other inorganic types of (airborne) WHO fibres”. Consequently, in Germany, suppliers of polycrystalline wool products must give information on their legal status if they release fibrous dust on handling and they must also provide advice on handling and dust control measures.
In all Member States each manufacturer must determine the extent and the form of any hazard information to be communicated to the users and this is usually in the form of a statement on a label and in a Safety Data Sheet.

2. Discussions with German authorities
In Germany the Working Group “Fibres and Dusts” (Arbeitskreis Fasern und Stäube - AK F&S) of the Committee on Hazardous Substances (Ausschuss für Gefahrstoffe, AGS, is responsible for assessing the classification of polycrystalline fibre dust which finally may be adopted by the AGS. The present assessment of polycrystalline fibrous dust as K3 (TRGS 905) is based on a proposal of the former Advisory Group on Toxicology, which regarded this as an interim assessment pending the separation of a suitable sample for animal testing.
Sections 2.3.2 through 2.3.4 of TRGS 905 gives the criteria for assessing the carcinogenicity of (specifically) vitreous WHO fibres, in particular the KI index and standard numbers of fibres to be injected into rats in intraperitoneal (IP) tests. These are not adapted to the assessment of polycrystalline fibres, hence the need to agree with the AK F&S on appropriate criteria for the IP testing of these materials and in particular to agree on the meaning of the requirement that the fibrous dust in the sample tested should be of similar sizes to those occurring in workplace air.
Due to the small respirable fibre fraction (see Note 1) in the samples of the commercial polycrystalline wools tested, the Fraunhofer Institute for Toxicology and Experimental Medicine (ITEM), who had previously successfully isolated samples from many vitreous fibre types, could not, in spite of adapting their method, produce a suitable sample.
Under ECFIA sponsorship, one member company has developed a new method that might allow a more representative fibrous dust sample to be isolated in sufficient quantities for intraperitoneal testing. This method is being adjusted so that the dimensions of WHO fibres contained in the isolated dust are as similar as possible to the WHO fibres found in workplace air. The completion timeframe is difficult to assess but the work is being progressed as quickly as possible.
Work to-date has shown that it might not be possible to isolate a test sample from some polycrystalline products. This has led to an agreement with the AK F&S that there is a need to establish criteria that would define materials that could avoid the need for testing and hazard classification. A separate project, sponsored by ECFIA, will involve independent experts from several countries in an attempt to recommend candidate fibre size-based exemption criteria.
Polycrystalline wool producers will co-operate in a further ECFIA project to conduct more extensive dust measurements in both manufacturing and customer premises. Both airborne fibrous dust levels and fibre size distributions will be studied and related to the processes releasing them.
ECFIA member companies with manufacturing or sales responsibility for polycrystalline wools will keep you updated when there are further developments.

Note 1.
WHO fibres are defined by their size; they are counted on filters collecting all airborne dust. All WHO fibres are not equally likely to enter and remain in the lung. The probability of alveolar deposition varies from <1% for fibres close to the 3 micron diameter up to about 40% for fibres of 0.5-1.0 microns diameter. Total respirable fibrous dust is usually measured by using a size selective sampler and weighing the amount collected.