EN 1017:2014/FprA1

Overview

EN 1017:2014/FprA1 is a European standard published by CEN, titled "Chemicals used for treatment of water intended for human consumption - Half-burnt dolomite." This standard specifically addresses the use of half-burnt dolomite as a chemical agent in water treatment processes designed to ensure safe drinking water. It defines the essential characteristics, quality requirements, and testing methods for half-burnt dolomite, enabling consistent and safe application across water supply systems intended for human consumption.

The standard aims to support regulatory compliance and promote best practices in water treatment by providing clear chemical parameter limits and specifications related to half-burnt dolomite products. It is applicable in EU and EFTA Member States, highlighting harmonized quality benchmarks, while reminding users that national regulations and authority approvals remain essential.

Key Topics

Characteristics of Half-Burnt Dolomite

• The standard defines the physical and chemical properties required for half-burnt dolomite used in potable water treatment.
• It distinguishes two types of half-burnt dolomite based on their chemical purity, particularly focusing on trace metals content.

Chemical Parameter Limits

• EN 1017:2014/FprA1 sets maximum limits for key chemical contaminants such as:
  • Antimony (Sb): max 3 mg/kg (Type 1), max 5 mg/kg (Type 2)
  • Arsenic (As): max 3 mg/kg (Type 1), max 5 mg/kg (Type 2)
  • Cadmium (Cd): max 2 mg/kg (both types)
  • Chromium (Cr): max 10 mg/kg (Type 1), max 20 mg/kg (Type 2)
  • Lead (Pb): max 10 mg/kg (Type 1), max 20 mg/kg (Type 2)
  • Mercury (Hg): max 0.5 mg/kg (Type 1), max 1 mg/kg (Type 2)
  • Nickel (Ni): max 10 mg/kg (Type 1), max 20 mg/kg (Type 2)
  • Selenium (Se): max 3 mg/kg (Type 1), max 5 mg/kg (Type 2)

Test Methods

• The standard specifies methods for verifying compliance with chemical and physical parameters, ensuring that half-burnt dolomite products meet the established safety and quality standards before being used in water treatment.

Regulatory Considerations

• EN 1017:2014/FprA1 highlights that compliance does not automatically grant approval for unrestricted use in all Member States; national regulations remain in force.
• It underscores the need for conformity with local water safety regulations and monitoring potential impacts on drinking water quality after treatment.

Applications

Half-burnt dolomite is primarily used in the treatment of water intended for human consumption, where it serves specialized roles such as:

• pH adjustment and buffering to stabilize treated water chemistry.
• Softening of water by precipitating hardness components to improve water quality and palatability.
• Removal of contaminants through chemical reactions that reduce harmful ions or metals in water supplies.

Water utilities, treatment plants, and chemical suppliers use EN 1017:2014/FprA1 to ensure that half-burnt dolomite products are suitable and safe for incorporation into drinking water treatment processes, meeting strict chemical purity requirements.

Related Standards

EN 1017:2014/FprA1 works in conjunction with other European and international water treatment standards, including:

• EN 1007 series - Standards on chemicals for water purification used in drinking water treatment.
• ISO 14001 - Environmental management standards related to safe chemical handling in water treatment.
• Directive 98/83/EC - European Drinking Water Directive specifying quality criteria for water intended for human consumption.

These linked resources help ensure comprehensive quality control, environmental safety, and regulatory compliance in water treatment chemical usage.

Keywords: half-burnt dolomite, water treatment chemicals, drinking water treatment, EN 1017:2014, chemical parameters, potable water, water purification, water safety standards, European water standards, water quality.