For some time now, the production of active chlorine,"produced from sodium chloride by electrolysis", salt must come from a supplier registered on theECHA95 list. For Switzerland this is SalinenSalz, and is available in 10kg and 25kg bags with the number 4440 / 4441. 

ECHA stands for: Europäische Chemikalien-Agentur / European Chemicals Agency)

This has been stipulated in the Biocidal Products Regulation 528/2012.

In addition to the "precursor" salt, the end product active chlorine, "produced from sodium chloride by electrolysis" is now also officially registered on the ECHA list.

This means that from 01 July 2022, these biocides will be will subject to European authorisation. It therefore requires authorisation for all EU Member States for the use of sodium hypochlorite as a disinfectant. This also applies to countries outside the EU, for example Switzerland and Great Britain.

As it is simply impossible for every user to apply for one or more approvals themselves, the manufacturers of electrolysis systems and salt suppliers are now required to do so.

Without CHZN approval for sodium chloride and/or electrolysis plant, no active chlorine may be produced in the in-situ process from July 1, 2022.

SWISS D&W TECH has already received the temporary authorisation (CHZN), the Union authorisation should follow no later than July 2025. The authorities reserve the right to issue the Union authorisation up to 36 months after 1 July 2022. SDWT electrolysis systems are already supplied with this CHZN number.

The advantage for you is that we have already had the product from our plants tested in accordance with the applicable biocide requirements using various test procedures and therefore already meet the latest requirements.

This authorisation, also known as approval, is limited to ten years and applies to the product types PT2, PT3, PT4, PT5 and PT11.

Swimming pool water is categorised as PT2, drinking water as PT5.

The aim of this approval is to improve the protection of both users and the environment