EN 12910:2012
(Main)Products used for treatment of water intended for human consumption - Garnet
Products used for treatment of water intended for human consumption - Garnet
This European Standard is applicable to garnet used for treatment of water intended for human consumption. It describes the characteristics of garnet and specifies the requirements and the corresponding test methods for garnet. It gives information on its use in water treatment.
Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch - Granatsand
Diese Europäische Norm gilt für Granatsand zur Aufbereitung von Wasser für den menschlichen Gebrauch. Sie beschreibt die Eigenschaften von Granatsand und legt die Anforderungen sowie die entsprechenden Prüfverfahren für Granatsand fest. Sie enthält Angaben zu dessen Anwendung in der Wasseraufbereitung.
Produits utilisés pour le traitement de l'eau destinée à la consommation humaine - Grenat
La présente Norme européenne s’applique au grenat utilisé pour le traitement de l’eau destinée à la consommation humaine. Elle décrit les caractéristiques du grenat et spécifie les exigences et les méthodes d’essai correspondantes. Elle donne des informations sur son emploi dans le traitement de l’eau.
Proizvodi, ki se uporabljajo za pripravo pitne vode - Granat
Ta evropski standard obravnava granat, ki se uporablja za pripravo pitne vode. Opisuje značilnosti granata in določa zahteve ter ustrezne preskusne metode zanj. Podaja informacije o uporabi granata pri pripravi vode.
General Information
- Status
- Published
- Publication Date
- 13-Nov-2012
- Withdrawal Date
- 30-May-2013
- Technical Committee
- CEN/TC 164 - Water supply
- Drafting Committee
- CEN/TC 164/WG 9 - Drinking water treatment
- Current Stage
- 9060 - Closure of 2 Year Review Enquiry - Review Enquiry
- Start Date
- 02-Dec-2024
- Completion Date
- 02-Dec-2024
Relations
- Replaces
EN 12910:2005 - Products used for treatment of water intended for human consumption - Garnet - Effective Date
- 08-Jan-2011
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
- Referred By
EN ISO 15912:2006 - Dentistry - Casting investments and refractory die materials (ISO 15912:2006) - Effective Date
- 28-Jan-2026
- Effective Date
- 28-Jan-2026
Overview
EN 12910:2012 (CEN) is the European product standard for garnet used in the treatment of water intended for human consumption. It defines identification, required characteristics, test methods and information on use in drinking-water filtration systems. The standard covers both main commercial garnet types (almandite and andradite) and gives practical requirements for manufacturers, suppliers and water treatment professionals.
Key Topics and Requirements
- Identification and composition
- Chemical names: Almandite (Fe3Al2(SiO4)3) and Andradite (Ca3Fe2(SiO4)3).
- Typical chemical composition ranges and note that mineralogy varies by deposit.
- Particle size distribution
- Determined according to EN 12902 test methods.
- Described by effective size (d10), uniformity coefficient (U < 1.5) or particle size ranges.
- Permitted oversize/undersize mass fractions: typically 5% for multimedia filter layers, 10% for single media filters, 15% for support layers.
- Density
- Absolute densities (typical): Almandite ≈ 4.10 g/cm³, Andradite ≈ 3.8 g/cm³.
- Bulk density (loose/packed) ranges are specified by type (values given in the standard).
- Guidance: garnet with absolute density < 3.8 g/cm³ should not be used in multimedia sand–garnet filters to avoid media intermixing.
- Chemical and purity requirements
- Specifies minimum purity and limits for common impurities; manufacturers must notify users of additional impurities or additives.
- Recommends checking national drinking-water regulations before use.
- Test methods and sampling
- Sampling and analysis procedures reference EN 12902; methods cover particle size, bulk density and extractables.
- Labelling, transport and storage
- Delivery formats: bags, semi‑bulk, bulk; marking must include product name, grade, net mass, supplier and the statement “This product conforms to EN 12910”.
- Garnet is not classified as dangerous for transport and has unlimited storage life if kept dry.
Applications
- Primary use as a high-density filtration and support medium in single and multilayer filters for drinking water treatment.
- Used as a support layer beneath sand or other media and as seeding material in specific reactors.
- Selected where high density is needed to improve separation during backwashing and to prevent media mixing.
Who should use this standard
- Water utilities and municipal drinking-water engineers
- Filter media manufacturers and suppliers
- Consultancy and design engineers for filtration systems
- Regulatory bodies and testing laboratories
Related Standards and References
- EN 12901:1999 - Definitions for inorganic supporting and filtering materials
- EN 12902 - Methods of test for inorganic filtering materials
- EU Directive 98/83/EC (Drinking water quality)
- Regulation (EC) No 1272/2008 (CLP) - labelling considerations
EN 12910:2012 is a practical reference for specifying, testing and supplying garnet for drinking-water filtration while reminding users to verify national regulatory acceptance.
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Frequently Asked Questions
EN 12910:2012 is a standard published by the European Committee for Standardization (CEN). Its full title is "Products used for treatment of water intended for human consumption - Garnet". This standard covers: This European Standard is applicable to garnet used for treatment of water intended for human consumption. It describes the characteristics of garnet and specifies the requirements and the corresponding test methods for garnet. It gives information on its use in water treatment.
This European Standard is applicable to garnet used for treatment of water intended for human consumption. It describes the characteristics of garnet and specifies the requirements and the corresponding test methods for garnet. It gives information on its use in water treatment.
EN 12910:2012 is classified under the following ICS (International Classification for Standards) categories: 71.100.80 - Chemicals for purification of water. The ICS classification helps identify the subject area and facilitates finding related standards.
EN 12910:2012 has the following relationships with other standards: It is inter standard links to EN 12910:2005, EN 12901:1999, EN 12902:2004, EN ISO 28319:2010, EN ISO 9693-1:2012, EN 14898:2006+A1:2007, EN 17093:2018, EN ISO 15912:2006, EN ISO 13017:2012. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
EN 12910:2012 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Proizvodi, ki se uporabljajo za pripravo pitne vode - GranatProdukte zur Aufbereitung von Wasser für den menschlichen Gebrauch - GranatsandProduits utilisés pour le traitement de l'eau destinée à la consommation humaine - GrenatProducts used for treatment of water intended for human consumption - Garnet71.100.80Chemicals for purification of water13.060.20Pitna vodaDrinking waterICS:Ta slovenski standard je istoveten z:EN 12910:2012SIST EN 12910:2013en,fr,de01-december-2013SIST EN 12910:2013SLOVENSKI
STANDARDSIST EN 12910:20061DGRPHãþD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12910
November 2012 ICS 71.100.80 Supersedes EN 12910:2005English Version
Products used for treatment of water intended for human consumption - Garnet
Produits utilisés pour le traitement de l'eau destinée à la consommation humaine - Grenat
Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch - Granatsand This European Standard was approved by CEN on 9 September 2012.
CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the CEN-CENELEC Management Centre or to any CEN member.
This European Standard exists in three official versions (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2012 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12910:2012: ESIST EN 12910:2013
Andradite Ca3Fe2(SiO4)3.
NOTE Both forms can have other metals in partial substitution for the major constituents. 4.2 Commercial form Each of the two main types of garnet is available in different particle size grades. 5 Physical properties 5.1 Appearance The product is a pink, red or brown to black coloured granular material. Cubic crystals; the particle shape can be angular to sub-angular to rounded depending on origin. The product shall be generally homogeneous and shall be visibly free of extraneous matter. SIST EN 12910:2013
The maximum contents of oversize and undersize shall be a mass fraction of 5 % for application of the product as a filtration layer in multi media filters and a mass fraction of 10 % for use in single media filters. For use as a support layer, maximum mass fractions of oversize and undersize of 15 % are acceptable. See A.2.3 for examples of available particle sizes that are used. NOTE 2 Other values can be necessary for certain applications. 5.3 Density 5.3.1 General The density of garnet varies with the mineralogical form. Garnet with absolute density lower than 3,8 g/cm3 should not be used in multi media sand - garnet filters to prevent interm
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