oSIST prEN 17443:2020

Winter service equipment - Brine production systems - Requirements and test methods

This European standard specifies the essential requirements of stationary systems for production of brines for winter road maintenance and includes tests of these requirements. Battery limits: chloride and water inlet to the saturator, brine outlet to the spreading machine. Within the scope are storage and loading/unloading equipment also.
The following points are not covered by this standard:
   - System and construction requirements;
   - Requirements according national legislations.

Winterdienstausrüstung - Soleerzeugungsanlagen - Anforderungen und Prüfmethoden

Matériels de viabilité hivernal - Unités de production de saumure - Exigences et méthodes d'essais

Oprema za zimska vzdrževalna dela - Sistemi za proizvodnjo slanice - Zahteve in preskusne metode

Standards Content (sample)

SLOVENSKI STANDARD
oSIST prEN 17443:2020
01-februar-2020
Oprema za zimska vzdrževalna dela - Sistemi za proizvodnjo slanice - Zahteve in
preskusne metode

Winter service equipment - Brine production systems - Requirements and test methods

Winterdienstausrüstung - Soleerzeugungsanlagen - Anforderungen und Prüfmethoden
Matériels de viabilité hivernal - Unités de production de saumure - Exigences et
méthodes d'essais
Ta slovenski standard je istoveten z: prEN 17443
ICS:
13.030.40 Naprave in oprema za Installations and equipment
odstranjevanje in obdelavo for waste disposal and
odpadkov treatment
oSIST prEN 17443:2020 en,fr,de

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

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oSIST prEN 17443:2020
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oSIST prEN 17443:2020
DRAFT
EUROPEAN STANDARD
prEN 17443
NORME EUROPÉENNE
EUROPÄISCHE NORM
December 2019
ICS 13.030.40
English Version
Winter service equipment - Brine production systems -
Requirements and test methods

Matériels de viabilité hivernal - Unités de production Winterdienstausrüstung - Soleerzeugungsanlagen -

de saumure - Exigences et méthodes d'essais Anforderungen und Prüfmethoden

This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee

CEN/TC 337.

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, Turkey 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

© 2019 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 17443:2019 E

worldwide for CEN national Members.
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oSIST prEN 17443:2020
prEN 17443:2019 (E)
Contents

European foreword ....................................................................................................................................................... 4

Introduction .................................................................................................................................................................... 5

1 Scope .................................................................................................................................................................... 6

2 Normative references .................................................................................................................................... 6

3 Terms and definitions ................................................................................................................................... 6

4 Materials ............................................................................................................................................................. 7

4.1 Chlorides ............................................................................................................................................................ 7

4.2 Water ................................................................................................................................................................... 7

5 Requirements ................................................................................................................................................... 8

5.1 Brine production capacity ........................................................................................................................... 8

5.2 Brine concentration ....................................................................................................................................... 8

5.3 Brine purity ....................................................................................................................................................... 8

5.3.1 General ................................................................................................................................................................ 8

5.3.2 Content of water insoluble matter ............................................................................................................ 8

5.3.3 Size of suspended particles ......................................................................................................................... 9

5.4 Other requirements ....................................................................................................................................... 9

5.4.1 Additional components ................................................................................................................................. 9

5.4.2 Pumping system ........................................................................................................................................... 10

5.4.3 Blending systems.......................................................................................................................................... 10

5.4.4 Protection of the environment ................................................................................................................ 10

6 Sampling .......................................................................................................................................................... 10

7 Test methods ................................................................................................................................................. 10

7.1 General ............................................................................................................................................................. 10

7.2 Brine production capacity ........................................................................................................................ 11

7.2.1 Direct method ................................................................................................................................................ 11

7.2.2 Indirect method ............................................................................................................................................ 11

7.3 Brine concentration .................................................................................................................................... 12

7.4 Brine purity .................................................................................................................................................... 12

7.4.1 Content of water insoluble matter ......................................................................................................... 12

7.4.2 Content of water insoluble matter ......................................................................................................... 12

7.4.3 Size of suspended particles ...................................................................................................................... 12

8 Safety ................................................................................................................................................................ 12

Annex A (informative) Systems for continuous and batch production of brine (examples,

schematic drawings) ................................................................................................................................... 13

A.1 Water flow through stationary bulk salts (NaCl, CaCl , MgCl ) .................................................... 13

2 2

A.1.1 Upward water flow design ........................................................................................................................ 13

A.1.2 Downward water flow design .................................................................................................................. 14

A.2 Forced circulation design (batch operation) ..................................................................................... 14

A.3 Blending systems.......................................................................................................................................... 15

A.3.1 Dilution of concentrated brines .............................................................................................................. 15

A.3.2 Mixing of NaCl brine with other brines (CaCl , MgCl ) and additives ........................................ 15

2 2
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Annex B (normative) Sampling ............................................................................................................................. 16

B.1 Sampling of brine .......................................................................................................................................... 16

B.2 Labelling and distribution of samples .................................................................................................. 16

B.3 Sampling report ............................................................................................................................................ 16

Annex C (normative) Conversion factors: Used amount of water/produced quantity of

brine .................................................................................................................................................................. 18

C.1 Dissolution of dry sodium chloride ........................................................................................................ 18

C.2 Dissolution of calcium chloride, 77 % (flakes) .................................................................................. 18

C.3 Dissolution of calcium chloride, anhydrous, 96 % (prills) ............................................................ 18

C.4 Dissolution of magnesium chloride, hexahydrate, 47 % (flakes, pellets) ................................ 19

Bibliography ................................................................................................................................................................. 20

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oSIST prEN 17443:2020
prEN 17443:2019 (E)
European foreword

This document (prEN 17443:2019) has been prepared by Technical Committee CEN/TC 337 “Road

operation equipment and products”, the secretariat of which is held by AFNOR.
This document is currently submitted to the CEN Enquiry.
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oSIST prEN 17443:2020
prEN 17443:2019 (E)
Introduction

De-icing agents in solid and liquid form are important for the winter maintenance of roads. They can

prevent respectively eliminate slippery road conditions. Brines are used for anti-icing (preventive winter

maintenance) and de-icing (curative winter maintenance) in pure form or in mixture with solid sodium

chloride as pre-wetted salt.

The document describes the requirements for brine production systems and their testing methods.

The aim of this document is an easy description of the product specifications for tenders and other

purchasing procedures.
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oSIST prEN 17443:2020
prEN 17443:2019 (E)
1 Scope

This document specifies the essential requirements of stationary systems for production of brines for

winter road maintenance and includes tests of these requirements. Installation boundary: chloride and

water inlet to the saturator, brine outlet to the spreading machine. Within the scope are brine storage

and brine loading/unloading equipment also.
The following points are not covered by this document:
- System and construction requirements;
- Requirements according national and European legislations.
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 15144, Winter maintenance equipment - Terminology - Terms for winter maintenance

EN 16811-1, Winter service equipment and products - De-icing agents - Part 1: Sodium chloride -

Requirements and test methods

EN 16811-2, Winter service equipment and products - De-icing agents - Part 2: Calcium chloride and

Magnesium chloride - Requirements and test methods

ISO 2479, Sodium chloride for industrial use — Determination of matter insoluble in water or in acid and

preparation of principal solutions for other determinations
3 Terms and definitions

For the purposes of this document, the terms and definitions given in EN 15144, EN 16811-1, EN 16811-2

and the following apply.

ISO and IEC maintain terminological databases for use in standardization at the following addresses:

— ISO Online browsing platform: available at https://www.iso.org/obp
— IEC Electropedia: available at http://www.electropedia.org/
3.1
brine

solution of chlorides (sodium chloride, NaCl; calcium chloride, CaCl ; magnesium chloride, MgCl ) or of

2 2
combinations of these chlorides in water

Note 1 to entry: Sodium chloride can be rock salt, solar salt/sea salt or vacuum salt. Further feedstock can be by-

product sodium chloride.
3.2
brine production system

equipment for dissolving chlorides in water (saturator), including brine dilution to the concentration for

application in winter road maintenance, and brine storage, as well as pumping system

(loading/unloading), measurement, control technology and blending system (see Annex A)

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oSIST prEN 17443:2020
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3.3
brine production capacity
hourly produced litres brine with the desired concentration
4 Materials
4.1 Chlorides

The quality of the chlorides (NaCl, CaCl , MgCl ) shall be in accordance with EN 16811-1 and EN 16811-2

2 2
respectively.

The sodium chloride (NaCl) has different granulometry and purity, dependent from the production type

(rock salt, sea/solar salt, vacuum salt) or from the production site (mine, etc.). Varying granulometry

influences the dissolving properties. Impurities such as water insoluble matter (silicates) and poorly

water and brine soluble calcium sulfate in salts cause an additional expenditure for their removal from

the brine production system. The NaCl and sulfate content of sodium chloride can be specified within the

limits of EN 16811-1 by the buyer depending on his individual needs. It can also be specified within these

limits at the national level (national annexes to this European Standard).

The characteristics of the delivered chloride shall be guaranteed and verified by the buyer. A product

information according to EN 16811-1:2016, A.1 resp. EN 16811-2:2016, A.1/A.2, delivered by the salt

supplier, shall be available. The buyer informs the manufacturer with the product information sheet

which chloride qualities are available.
4.2 Water

For brine production systems in principle suitable are drinking water (tap water), water from rivers,

lakes, ponds, well water, collected water from road maintenance depots, etc.

Water to be used in case of production of brines out of NaCl, CaCl and MgCl or dilute brines should be

2 2

of a quality which allows the production of brines within the allowed values for heavy metals, arsenic and

hydrocarbons (NaCl brine according to EN 16811-1:2016, Table 6; CaCl and MgCl brines according to

2 2

EN 16811-2:2016, Table 8). Water for dissolving can be with a content of chloride. Water for dilution

should be better without chloride.

Sulphate, expressed as SO , in the standards EN 16811-1 and EN 16811-2 is specified differently (those

values are for NaCl brine less than 0,6 % in a 10 % brine, for CaCl brine less than 0,5 % calculated for the

anhydrous product and for MgCl brine less than 1,0 % in a 10 % brine). In the water to be used, sulphate

should be less than 1 g SO per litre, and the resulting brine should be according to the brine specifications

in the standards EN 16811-1 and EN 16811-2.

The content of water insoluble matter and size of suspended particles in the water shall conform in total

to the requirements for water insoluble matter in brine (5.3.1, Table 1 and 5.3.2).

The equipment supplier should receive the specification of the intended water and check the conformity

of the values with the requirements. If necessary, a prior water treatment or an adaptation of the brine

production system shall be carried out.

NOTE 1 Water with a high hardness can lead during the brine production with calcium chloride and rock salts to

precipitation of calcium carbonate.

NOTE 2 Iron chloride in water acts as flocculant and causes problems in brine filters on spreading machines.

Content of chloride from water which is used for dilution of brine shall guarantee des

...