explanation
Biocides are chemicals used for pest control. The term "biocide" comprises herbicides (chemicals used against weeds), fungicides (against fungi), rodenticides (against rodents) and insecticides (against insects). The harmful organisms against which biocides are used range from animals to plants and microorganisms, as well as fungi and viruses. Biocides can have a great variety of active ingredients. The substances that are mainly used in coatings are fungicides (for mould control).
In most cases, the use of biocides involves a certain risk for both the user and persons exposed to the materials treated with biocides, as well as for the environment . Before biocides are used, it should thus always be verified whether they are actually necessary and whether the product chosen is suitable for the intended purpose. Whenever biocidal products are used, appropriate precautionary measures should be taken and observed.
The Act on Biocidal Products (BGBl. I Nr. 105/2013) expressly states that the use of biocidal products should be restricted to a sensible, necessary upper limit, also by combining physical, biological, chemical and other relevant measures.
Regulation (EU) No 528/2012 of the European Parliament and of the Council of 22 May 2012 concerning the making available on the market and use of biocidal products (Biocide Regulation)
Biocidal active substances (hereinafter referred to as biocides) may only be used for in-can preservation for storage and transport. This also applies to biocides in preliminary products.
With the exception of BNPD, any formaldehyde and formaldehyde releasers contained are not taken into account in the criterion "Limit values for biocides".
The preservation of the product must be dimensioned in such a way
that the amount of each biocide contained in the product falls below the limit value stated in each case, regardless of whether it was added to the product or introduced through the use of preliminary products (binders, pigment pastes, dispersants, etc.),
AND
that the sum of all added biocides and biocides from precursors does not exceed the limit value of 400 ppm in the product
is not exceeded.
The following active substances may only be contained up to the specified maximum authorised levels
≤ 15 ppm CIT
≤ 15 ppm MIT
≤ 15 ppm CIT / MIT
≤ 80 ppm IPBC
≤ 200 ppm BNPD
CIT = 5-chloro-2-methyl-4-isothiazolin-3-one (CAS 26172-55-4)
MIT = 2-methyl-4-isothiazolin-3-one (CAS 2682-20-4)
CIT / WITH (CAS 55965-84-9)
IPBC = 3-iodo-2-propynyl butyl carbamate (CAS 55406-53-6)
BNPD = 2-bromo-2-nitropropane-1,3-diol, bronopol (CAS 52-51-7)
Supporting documents:
Safety data sheet in accordance with Regulation (EC) No 1907/2006 as amended by Regulation (EU) No 453/2010, and manufacturer's confirmation.
In the case of powder plastering and spackle, this criterion is regarded as met.
All products bearing one of the following organic labels meet these criteria:
Alternatively, the corresponding baubook declaration may serve as evidence (www.baubook.info/oea).
Since May 1, 2020, products containing 2-methyl-4-isothiazolin-3-one (CAS 2682-20-4), abbreviated MIT, from a concentration of 15 ppm, have been classified with hazard warning H317 (May cause allergic skin reaction). The sensitizing effect of chloromethylisothiazolinone (CIT) has also been well known for a long time.
The "ÖkoBauKriterien" (eco building criterion) "2.6.1 Limits for biocides" and "2. 6. 4. Ban of biocide use in facade plasters and paints" has been adapted to this situation and the use of CIT, MIT and CIT / MIT (3: 1) has been limited to 15 ppm.
The sum of the allowed preservatives was increased to 400 ppm. To simplify the criterion and also to resolve existing contradictions, the limitation to individual combinations of active ingredients has also been removed from the criterion.
Criteria change valid from: 1.7.2021
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minimum requirement
Change of criteria