oSIST prEN 12907:2026

• Abstract:

  This European Standard is applicable to pyrolyzed coal material used for treatment of water intended for human consumption. It describes the characteristics of pyrolyzed coal material and specifies the requirements and the corresponding test methods for pyrolyzed coal material. It gives information on its use in water treatment.

• Status: Not Published
• Public Enquiry End Date: 24-Dec-2026
• ICS: 13.060.20 - Drinking water
• ICS: 71.100.80 - Chemicals for purification of water
• Technical Committee: IOVO - Water supply and waste water engineering
• Current Stage: 4020 - Public enquire (PE) (Adopted Project)
• Start Date: 26-Oct-2026
• Due Date: 15-Mar-2027
• Ref Project: prEN 12907 - Products used for treatment of water intended for human consumption - Pyrolyzed coal material

• Revised: SIST EN 12907:2009 - Products used for treatment of water intended for human consumption - Pyrolyzed coal material
• Effective Date: 19-Jan-2023

oSIST prEN 12907:2026 is the Slovene publication of the CEN draft European Standard for pyrolyzed coal material used in the treatment of water intended for human consumption. It specifies the material’s description, physical and chemical requirements, test methods, and guidance on use, handling, marking, transport, and storage for manufacturers, suppliers, laboratories, and water-treatment users.

What does oSIST prEN 12907:2026 specify?

oSIST prEN 12907:2026 applies to pyrolyzed coal material used for water treatment. It covers the material itself, how it is identified and described, and how its key properties are checked before use.

The document is arranged in clauses on scope, normative references, terms and definitions, description, physical properties, chemical properties, specific properties, test methods, and labelling, transportation and storage. It also includes an informative annex with background information on origin, properties, use, hydraulic behaviour, safe handling, and emergency actions.

What are the key requirements of oSIST prEN 12907:2026?

oSIST prEN 12907:2026 sets out the main characteristics a user or supplier should verify before the material is put into service. In practice, this means checking the product identity, grading, density, purity, and leaching behaviour against the standard’s requirements.

• Identification and appearance (Clause 4, Clause 5): oSIST prEN 12907:2026 identifies the product as carbon-based pyrolyzed coal material and describes it as a brown to black granular material with a porous structure. It should be homogeneous and free from visible extraneous matter, so users can recognise the intended filter media and avoid contaminated lots.
• Particle size distribution (Clause 5.2): oSIST prEN 12907:2026 requires particle size to be defined by size descriptors or by particle size range with limits on oversize and undersize depending on the application. This matters because the grading affects filter performance, bed stability, and whether the material suits a filtration layer, single-media filter, or support layer.
• Bulk density (Clause 5.3): oSIST prEN 12907:2026 specifies separate requirements for bulk density in loose and packed condition. This helps with design, transport calculations, and filling of filters and containers.
• Chemical composition and purity (Clause 6): oSIST prEN 12907:2026 requires the commercial product to meet limits for carbon content, ash, and volatile matter, and it sets minimum purity expectations for use in drinking-water treatment. Users need this to confirm the material comes from the expected process and to judge whether it is suitable for the intended water quality.
• Water-extractable substances (Clause 6.2.2): oSIST prEN 12907:2026 limits leachable substances such as arsenic, cadmium, chromium, mercury, nickel, lead, antimony, selenium, cyanide, and PAH. This is the main health-protection check because it assesses what could pass from the filter media into treated water.
• Sampling and test methods (Clause 8): oSIST prEN 12907:2026 requires production-site sampling for conformity assessment and refers the analytical methods to EN 12902. This is important because transport and handling can change the sample, and the laboratory method must be consistent.
• Delivery, marking, and storage (Clause 9): oSIST prEN 12907:2026 requires delivery in bags, semi-bulk containers, or bulk, with clean or dedicated transport equipment, and specific marking on packages or delivery documents. It also gives storage guidance for dry, clean conditions, which helps preserve product quality until use.

What terms does oSIST prEN 12907:2026 define?

• Pyrolyzed coal material: thermally treated coal used as a filter material in water treatment.
• Particle size distribution: the way the material’s粒 sizes are distributed, used to describe grading and filter suitability.
• Effective size (d10): a particle-size descriptor used with the grading requirements to characterise the finer part of the material.
• Uniformity coefficient (U): a measure of how uniform the particle sizes are, which affects filtration behaviour.
• Bulk density loose: the density of the material in a loose, uncompressed state.
• Bulk density packed: the density after packing, used for storage, filling, and transport calculations.
• Water-extractable substances: substances that can leach from the material into water under the specified test conditions.
• PAH (Polycyclic Aromatic Hydrocarbons): a group of organic compounds tracked here as the sum of specified PAH components in the leaching test.

Who uses oSIST prEN 12907:2026?

oSIST prEN 12907:2026 is used by manufacturers and suppliers of filter media, by laboratories that test particle size, density, composition, and leaching, and by water-treatment operators who select or verify filter material for open or closed, single or multi-media filters. It is also relevant to buyers and quality managers who need to check conformity, marking, delivery condition, and storage practice.

What changed in oSIST prEN 12907:2026 from the previous edition?

oSIST prEN 12907:2026 supersedes EN 12907:2009. The foreword states two technical changes: the bulk density range was extended, and the storage conditions were updated.

Which standards are used with oSIST prEN 12907:2026?

• EN 12901: provides the terms and definitions used for inorganic supporting and filtering materials.
• EN 12902: provides the test methods referred to for sampling and analysis, including particle size, density, carbon, ash, volatile matter, and water-extractable substances.

What does the oSIST prEN 12907:2026 document contain?

The document contains the product description, property requirements, and test-related instructions that a technical user needs to check conformity. It includes tables for composition and water-extractable substances, and informative Annex A gives background data on raw materials, manufacturing, typical composition, particle-size examples, density, porosity, use in filters, hydraulic behaviour, safe handling, and emergency procedures.

SLOVENSKI STANDARD
01-december-2026
Izdelki, ki se uporabljajo za pripravo pitne vode - Pirolizirani premog
Products used for treatment of water intended for human consumption - Pyrolyzed coal
material
Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch - Thermisch
behandelte Kohleprodukte
Produits chimiques pour le traitement de l'eau destinée à la consommation humaine -
Charbon pyrolysé
Ta slovenski standard je istoveten z: prEN 12907
ICS:
13.060.20 Pitna voda Drinking water
71.100.80 Kemikalije za čiščenje vode Chemicals for purification of
water
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

DRAFT
EUROPEAN STANDARD
NORME EUROPÉENNE
EUROPÄISCHE NORM
October 2026
ICS Will supersede EN 12907:2009
English Version
Products used for treatment of water intended for human
consumption - Pyrolyzed coal material
Produits chimiques pour le traitement de l'eau Produkte zur Aufbereitung von Wasser für den
destinée à la consommation humaine - Charbon menschlichen Gebrauch - Thermisch behandelte
pyrolysé Kohleprodukte
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee
CEN/TC 164.
If this draft becomes a European Standard, 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.

This draft European Standard was established by CEN 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, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.

Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.

EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2026 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 12907:2026 E
worldwide for CEN national Members.

Contents Page
European foreword . 3
Introduction . 4
1 Scope . 5
2 Normative references . 5
3 Terms and definitions . 5
4 Description . 5
4.1 Identification . 5
4.1.1 Chemical name . 5
4.1.2 Synonym or common names . 5
4.2 Commercial forms . 5
5 Physical properties . 5
5.1 Appearance . 5
5.2 Particle size distribution . 6
5.3 Density . 6
5.3.1 Bulk density loose . 6
5.3.2 Bulk density packed . 6
6 Chemical properties . 6
6.1 Composition of commercial product . 6
6.2 Purity criteria . 7
6.2.1 General. 7
6.2.2 Water-extractable substances. 7
7 Specific properties . 8
8 Test methods . 8
8.1 Sampling . 8
8.2 Analysis . 8
8.2.1 Particle size distribution . 8
8.2.2 Bulk density loose . 8
8.2.3 Bulk density packed . 8
8.2.4 Content of carbon . 8
8.2.5 Ash . 8
8.2.6 Content of volatile matter . 8
8.2.7 Content of water-extractable substances . 8
9 Labelling, transportation and storage. 9
9.1 Means of delivery . 9
9.2 Risk and safety labelling in accordance with EU Directives . 9
9.3 Transportation regulations and labelling . 9
9.4 Marking . 9
9.5 Storage . 9
Annex A (informative) General information on pyrolyzed coal material . 10
Bibliography . 14
European foreword
This document (prEN 12907:2026) has been prepared by Technical Committee CEN/TC 164 “Water
supply”, the secretariat of which is held by AFNOR.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 12907:2009.
— Extension of the bulk density range (Clause 5)
— Updating the storage conditions (Clause 8)
This document has been prepared under a standardization request addressed to CEN by the European
Commission. The Standing Committee of the EFTA States subsequently approves these requests for its
Member States.
Introduction
In respect of potential adverse effects on the quality of water intended for human consumption, caused
by the product covered by this document:
a) this document provides no information as to whether the product may be used without restriction
in any of the Member States of the EU or EFTA;
b) it should be noted that, while awaiting the adoption of verifiable European criteria, existing national
regulations concerning the use and/or the characteristics of this product remain in force.
NOTE Conformity with this document does not confer or imply acceptance or approval of the product in any
of the Member States of the EU or EFTA. The use of the product covered by this document is subject to regulation
or control by National Authorities.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN [and/or CENELEC] shall not be held responsible for identifying any or all such patent
rights.
1 Scope
This document is applicable to pyrolyzed coal material used for treatment of water intended for human
consumption. It describes the characteristics of pyrolyzed coal material and specifies the requirements
and the corresponding test methods for pyrolyzed coal material. It gives information on its use in water
treatment.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 12901, Products used for treatment of water intended for human consumption - Inorganic supporting
and filtering materials - Definitions
EN 12902, Products used for treatment of water intended for human consumption - Inorganic supporting
and filtering materials - Methods of test
3 Terms and definitions
For the purposes of this document, the terms and definitions given in EN 12901 apply.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp/
— IEC Electropedia: available at https://www.electropedia.org/
4 Description
4.1 Identification
4.1.1 Chemical name
Carbon (C).
4.1.2 Synonym or common names
None.
4.2 Commercial forms
Pyrolyzed coal material, according to this document, is a thermally treated coal and is available in
different particle size ranges.
5 Physical properties
5.1 Appearance
The product is a brown to black coloured dull granular material with spherical or angular shape, porous
structure, and smooth texture.
The product shall be generally homogeneous and shall be visibly free of extraneous matter.
5.2 Particle size distribution
The particle size distribution shall be determined on samples taken at the point of manufacture.
The particle size distribution shall be described by:
) with a permitted tolerance of ± 5 %;
a) effective size: (d10
uniformity coefficient: (U) shall be less than 1,5;
minimum size: (d ) with a permitted tolerance of ± 5 %;
or
b) particle size range and by mass of oversize and undersize according to application:
the maximum permitted contents of oversize and unders
...