This European Standard is applicable to sand and gravel used for treatment of water intended for human consumption. It describes the characteristics of sand and gravel and specifies the requirements and the corresponding test methods for sand and gravel. It gives information on their use in water treatment.
Regulation (eu) No 305/2011 of the European Parliament and of the Council of 9 march 2011 laying down harmonised conditions for the marketing of construction products and repealing council directive 89/106/eec
Shqip