+Article 18 4.

Article 18 4.

If the contract provides for a future change of the product or price, or a discount, this shall be indicated on the bill together with the date on which the change takes place.

1. Overzicht

,

1.1 Referenties

1.2 Geïdentificeerde eisen

1.3 Gerelateerde standaarden

2. Geïdentificeerde eisen

Eisen

3. Gerelateerde standaarden

Standaarden