If you want to sell portable fire extinguishers in the Netherlands, you must apply for a government type approval (Rijkstypekeur) number (in Dutch). The application form for applying for a government type approval (pdf) is available in English. Government type approval certificates are issued by Kiwa FSS. Portable fire extinguishers must fulfil the safety and quality requirements.
Please note: The technical requirements imposed by the Netherlands in respect of portable fire extinguishers differ from those of other EU Member States. If a portable fire extinguisher is already allowed in another Member State, the authorities may only ban its sale in the Netherlands in exceptional cases.