EN 12678:2016

Chemical used for treatment of water intended for human consumption - Potassium peroxomonosulfate

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

Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch - Kaliumperoxomonosulfat

Diese Europäische Norm gilt für Kaliumperoxomonosulfat zur Aufbereitung von Wasser für den menschlichen Gebrauch. Sie beschreibt die Eigenschaften von Kaliumperoxomonosulfat und legt die Anforderungen sowie die entsprechenden Prüfverfahren für Kaliumperoxomonosulfat fest. Sie gibt Informationen für seine Anwendung in der Wasseraufbereitung.

Produits chimiques utilisés pour le traitement de l'eau destinée à la consommation humaine - Peroxomonosulfate de potassium

La présente Norme européenne s’applique au peroxomonosulfate de potassium utilisé pour le traitement de l’eau destinée à la consommation humaine. Elle décrit les caractéristiques du peroxomonosulfate de potassium et spécifie les exigences et les méthodes d’essai correspondantes. Elle donne des informations sur son emploi pour le traitement de l’eau.

Kemikalije, ki se uporabljajo za pripravo pitne vode - Kalijev peroksomonosulfat

Ta evropski standard se uporablja za kalijev peroksomonosulfat, ki se uporablja za pripravo pitne vode. Opisuje lastnosti kalijevega peroksomonosulfata ter določa zahteve in ustrezne preskusne metode zanj. Podaja informacije za njegovo uporabo pri pripravi vode.

General Information

• Status: Published
• Publication Date: 17-May-2016
• Withdrawal Date: 29-Nov-2016
• ICS: 71.100.80 - Chemicals for purification of water
• Technical Committee: CEN/TC 164 - Water supply
• Drafting Committee: CEN/TC 164/WG 9 - Drinking water treatment
• Current Stage: 9093 - Decision to confirm - Review Enquiry
• Start Date: 21-Mar-2022
• Completion Date: 14-Apr-2025
• Ref Project: SIST EN 12678:2016 - Chemical used for treatment of water intended for human consumption - Potassium peroxomonosulfate

Relations

• Replaces: EN 12678:2008 - Chemicals used for treatment of water intended for human consumption - Potassium peroxomonosulfate
• Effective Date: 25-May-2016

Overview - EN 12678:2016 (Potassium peroxomonosulfate)

EN 12678:2016 is the CEN European Standard that specifies the characteristics, requirements and test methods for potassium peroxomonosulfate used for the treatment of water intended for human consumption. Prepared by CEN/TC 164 (Water supply) and approved in 2016, the standard covers identification, composition, purity criteria, sampling, analysis, labelling, transport and storage information relevant to suppliers, laboratories and water operators. The document also notes regulatory context: the product is considered a biocide and must comply with applicable legislation (e.g., Regulation (EU) No 528/2012).

Key topics and technical requirements

• Identification and composition
  • Chemical name: potassium peroxomonosulfate triple salt (empirical formula K5H3S4O18; active ingredient KHSO5).
  • Synonyms: potassium monopersulfate, potassium hydrogenperoxomonosulfate.
  • CAS No.: 70693-62-8; EINECS: 274-778-7.
• Physical description
  • Commercial form: white, odourless, granular, free‑flowing triple salt.
  • Bulk density: approximately 1.0–1.2 g/cm3 (documented range).
• Purity and chemical parameters
  • Defines purity criteria, expected composition of the commercial product and lists impurities/by‑products to be controlled.
• Test methods and sampling
  • Includes sampling rules and analytical methods, notably determination of the active ingredient KHSO5 and other chemical parameters.
  • Normative references to analytical standards (e.g., EN 1233, EN ISO 12846, ISO sampling standards).
  • Annex C provides a normative hydride-AAS procedure for trace elements (arsenic, antimony, selenium).
• Safety, labelling and storage
  • Requirements for labelling under EU rules, transport regulations, storage conditions, incompatibilities and emergency procedures (first aid, spillage, fire) are included.

Applications and users

Who uses EN 12678:2016

• Chemical manufacturers and formulators of potassium peroxomonosulfate products.
• Suppliers and distributors who must ensure product identification, labelling and transport compliance.
• Water utilities and treatment operators specifying or dosing chemicals for drinking water treatment.
• Analytical laboratories performing compliance testing and purity verification.
• Regulatory bodies and procurement teams assessing conformity and safety information.

Practical value

• Helps ensure safe, consistent quality of potassium peroxomonosulfate used in drinking water treatment.
• Provides validated test methods for confirming active ingredient content and controlling impurities.
• Guides safe handling, storage and legal labelling for supply chain compliance.

Related standards and references

• EN 1233 (Cr determination), EN ISO 12846 (Hg), ISO sampling standards (ISO 3165, ISO 6206, ISO 8213), ISO 8288 (metal AAS) - cited for analytical and sampling practices.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kemikalije, ki se uporabljajo za pripravo pitne vode - Kalijev peroksomonosulfatProdukte zur Aufbereitung von Wasser für den menschlichen Gebrauch - KaliumperoxomonosulfatProduits chimiques utilisés pour le traitement de l'eau destinée à la consommation humaine - Peroxomonosulfate de potassiumChemical used for treatment of water intended for human consumption - Potassium peroxomonosulfate71.100.80Chemicals for purification of water13.060.20Pitna vodaDrinking waterICS:Ta slovenski standard je istoveten z:EN 12678:2016SIST EN 12678:2016en,fr,de01-julij-2016SIST EN 12678:2016SLOVENSKI
STANDARDSIST EN 12678:20081DGRPHãþD

EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12678
May
t r s x ICS
y sä s r rä z r Supersedes EN
s t x y zã t r r zEnglish Version
Chemical used for treatment of water intended for human consumption æ Potassium peroxomonosulfate Produits chimiques utilisés pour le traitement de l 5eau destinée à la consommation humaine æ Peroxomonosulfate de potassium
Produkte zur Aufbereitung von Wasser für den menschlichen Gebrauch æ Kaliumperoxomonosulfat This European Standard was approved by CEN on
s z March
t r s xä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey andUnited Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
t r s x CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
s t x y zã t r s x ESIST EN 12678:2016

.......................................................................................... 15 6.3 Transportation regulations and labelling ........................................................................................... 15 6.4 Marking ............................................................................................................................................................ 15 6.5 Storage ............................................................................................................................................................. 15 6.5.1 Generals ........................................................................................................................................................... 15 6.5.2 Long term stability ....................................................................................................................................... 15 SIST EN 12678:2016

General information on potassium peroxomonosulfate . 17 A.1 Origin . 17 A.1.1 Raw materials . 17 A.1.2 Manufacturing process . 17 A.2 Use . 17 A.2.1 Function . 17 A.2.2 Form in which it is used. 17 A.2.3 Treatment dose . 17 A.2.4 Means of application . 17 A.2.5 Secondary effects . 17 A.2.6 Removal of excess product . 18 Annex B (normative)
General rules relating to safety . 19 B.1 Rules for safe handling and use . 19 B.2 Emergency procedures . 19 B.2.1 First aid . 19 B.2.2 Spillage . 19 B.2.3 Fire . 19 Annex C (normative)
Determination of arsenic, antimony and selenium (atomic absorption spectrometry hydride technique) . 20 C.1 Safety precautions . 20 C.2 General principle . 20 C.3 Interferences . 20 C.4 Reagents . 20 C.5 Apparatus . 22 C.6 Procedure . 24 C.6.1 Preparation of the apparatus . 24 C.6.2 Preparation of calibration solutions . 24 C.6.3 Preparation of test solutions and standard solutions . 24 C.6.4 Determination of arsenic with sodium borohydride . 24 C.6.5 Determination of selenium with sodium borohydride . 25 C.6.6 Determination of antimony with sodium borohydride . 25 C.7 Calculation. 25 Bibliography . 26
1) Chemical Abtracts Service Registry Number. 2) European Inventory of Existing Commercial Chemical Substances. 3) 100 kPa = 1 bar SIST EN 12678:2016

(1) is: + 1,82 V at 25°C 4 Purity criteria 4.1 General This European Standard specifies the minimum purity requirements for potassium peroxomonosulfate used for the treatment of water intended for human consumption. Limits are given for impurities commonly present in the product. Depending on the raw material and the manufacturing process other impurities may be present and, if so, this shall be notified to the user and when necessary to the relevant authorities. Users of this product should check the national regulations in order to clarify whether it is of appropriate purity for treatment of water intended for human consumption, taking into account raw water quality, required dosage, contents of other impurities and additives used in the product not stated in the product standard. Limits have been given for impurities and chemicals parameters where these are likely to be present in significant quantities from the current production process and raw materials. If the production process or raw materials leads to significant quantities of impurities, by-products or additives being present, this shall be notified to the user. 4.2 Composition of commercial product The commercial product shall contain KHSO5 (potassium peroxomonosulfate) at a mass fraction greater than 45 percent or the manufacturer’s declared values. Typical composition in mass fraction should be approximately: 45 % potassium peroxsomonosulfate (KHSO5), 25 % potassium hydrogen sulfate (KHSO4), and 30 % potassium sulfate (K2SO4). 4.3 Impurities and main by-products See 4.1. 4.4 Chemical parameters NOTE For the purpose of this European Standard, “chemical parameters” are those defined in the EU Directive 98/83/EC of 3 November 1998 (see [2]). The content of chemical parameters shall conform to the requirements specified in Table 1. SIST EN 12678:2016

ª
t Nal
ª Na2S4O6 (3) 5.2.1.2 Reagents All reagents shall be of a recognized analytical grade and the water used shall conform to grade 3 in accordance with EN ISO 3696. SIST EN 12678:2016
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