Methods of test for masonry units - Part 5: Determination of the active soluble salts content of clay masonry units

This European Standard specifies a method for determining the active soluble salts content of clay masonry units.

Prüfverfahren für Mauersteine - Teil 5: Bestimmung des Gehalts an aktiven löslichen Salzen von Mauerziegeln

Diese Europäische Norm legt ein Verfahren zur Bestimmung des Gehalts an aktiven löslichen Salzen von Mauerziegeln fest.

Méthodes d'essai des éléments de maçonnerie - Partie 5: Détermination de la teneur en sels solubles actifs des éléments de maçonnerie en terre cuite

La présente Norme européenne spécifie une méthode de détermination de la teneur en sels solubles actifs des éléments de maçonnerie en terre cuite.

Metode preskušanja zidakov - 5. del: Določevanje vodotopnih soli v opečnih zidakih

Ta evropski standard določa metodo za določevanje vodotopnih soli v opečnih zidakih.

General Information

Status
Published
Publication Date
01-Mar-2016
Technical Committee
Current Stage
9020 - Submission to 2 Year Review Enquiry - Review Enquiry
Due Date
15-Apr-2021
Completion Date
15-Apr-2021

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SLOVENSKI STANDARD
SIST EN 772-5:2016
01-junij-2016
1DGRPHãþD
SIST EN 772-5:2002
0HWRGHSUHVNXãDQMD]LGDNRYGHO'RORþHYDQMHYRGRWRSQLKVROLYRSHþQLK
]LGDNLK

Methods of test for masonry units - Part 5: Determination of the active soluble salts

content of clay masonry units

Prüfverfahren für Mauersteine - Teil 5: Bestimmung des Gehalts an aktiven löslichen

Salzen von Mauerziegeln

Méthodes d'essai des éléments de maçonnerie - Partie 5: Détermination de la teneur en

sels solubles actifs des éléments de maçonnerie en terre cuite
Ta slovenski standard je istoveten z: EN 772-5:2016
ICS:
91.100.25 Gradbeni izdelki iz terakote Terracotta building products
SIST EN 772-5:2016 en,fr,de

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

---------------------- Page: 1 ----------------------
SIST EN 772-5:2016
---------------------- Page: 2 ----------------------
SIST EN 772-5:2016
EN 772-5
EUROPEAN STANDARD
NORME EUROPÉENNE
March 2016
EUROPÄISCHE NORM
ICS 91.100.25 Supersedes EN 772-5:2001
English Version
Methods of test for masonry units - Part 5: Determination
of the active soluble salts content of clay masonry units

Méthodes d'essai des éléments de maçonnerie - Partie Prüfverfahren für Mauersteine - Teil 5: Bestimmung

5: Détermination de la teneur en sels solubles actifs des des Gehalts an aktiven löslichen Salzen von

éléments de maçonnerie en terre cuite Mauerziegeln
This European Standard was approved by CEN on 3 January 2016.

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
CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels

© 2016 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN 772-5:2016 E

worldwide for CEN national Members.
---------------------- Page: 3 ----------------------
SIST EN 772-5:2016
EN 772-5:2016 (E)
Contents Page

European foreword ....................................................................................................................................................... 3

1 Scope .................................................................................................................................................................... 4

2 Normative references .................................................................................................................................... 4

3 Principle ............................................................................................................................................................. 4

4 Symbols ............................................................................................................................................................... 4

5 Materials ............................................................................................................................................................. 4

5.1 For all methods ................................................................................................................................................ 4

5.2 Instrumental method Atomic Absorption Spectroscopy (AAS) and flame photometry ........ 5

5.3 Instrumental method Atomic Absorption Spectroscopy (AAS) and flame photometry

or inductively coupled plasma spectrometry (ICP) ............................................................................ 5

5.4 EDTA method (alternative) ......................................................................................................................... 5

6 Apparatus ........................................................................................................................................................... 5

7 Preparation of sample ................................................................................................................................... 6

7.1 Sampling ............................................................................................................................................................. 6

7.2 Crushing .............................................................................................................................................................. 6

8 Extraction procedure ..................................................................................................................................... 6

9 Determinations of cations by instrumental techniques ................................................................... 6

9.1 General ................................................................................................................................................................ 6

9.2 Atomic absorption spectroscopy method (AAS) and flame photometry .................................... 6

9.2.1 Sample preparation ........................................................................................................................................ 6

9.2.2 Calibration: preparation of the reference series ................................................................................. 7

9.2.3 Spectroscopic lines and parameters for AAS and flame photometry analysis ......................... 7

9.3 Inductively coupled plasma spectrometry method (ICP) ................................................................. 8

9.3.1 General ................................................................................................................................................................ 8

9.3.2 Spectroscopic lines for ICP analysis ......................................................................................................... 8

9.4 Calculation of the results .............................................................................................................................. 8

10 Alternative method of determination of the content of active soluble salts ............................. 9

10.1 Preparations of reagents for magnesium determination ................................................................. 9

10.1.1 Magnesium test solution (1,0 mg Mg/ml) .............................................................................................. 9

10.1.2 Preparation of EDTA test solution (0,5 %) ............................................................................................ 9

10.2 First titration (calcium plus magnesium) .............................................................................................. 9

10.3 Second titration (calcium) ........................................................................................................................... 9

10.4 Magnesium content ........................................................................................................................................ 9

10.5 Determination of sodium and potassium ............................................................................................... 9

11 Expression of results ................................................................................................................................... 10

12 Test report ...................................................................................................................................................... 10

---------------------- Page: 4 ----------------------
SIST EN 772-5:2016
EN 772-5:2016 (E)
European foreword

This document (EN 772-5:2016) has been prepared by Technical Committee CEN/TC 125 “Masonry”,

the secretariat of which is held by BSI.

This European Standard shall be given the status of a national standard, either by publication of an

identical text or by endorsement, at the latest by September 2016, and conflicting national standards

shall be withdrawn at the latest by December 2017.

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.
This document supersedes EN 772-5:2001.

The crushing procedure in 7.2 has been amended so that the sample, after reducing to particles of not

greater than approximately 1 mm in size, is dried in a ventilated oven to constant mass prior to further

grinding and sieving.

This document has been prepared under a mandate given to CEN by the European Commission and the

European Free Trade Association.

According to the CEN/CENELEC Internal Regulations, the national standards organizations of the

following countries are bound to implement this European Standard: 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 the United Kingdom.
---------------------- Page: 5 ----------------------
SIST EN 772-5:2016
EN 772-5:2016 (E)
1 Scope

This European Standard specifies a method for determining the active soluble salts content of clay

masonry units.
2 Normative references

The following referenced documents are indispensable for the application 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 771-1, Specification for masonry units — Part 1: Clay masonry units

ISO 3310-1, Test sieves — Technical requirements and testing — Part 1: Test sieves of metal wire cloth

ISO 3310-2, Test sieves — Technical requirements and testing — Part 2: Test sieves of perforated metal

plate
3 Principle

The method adopted is based on water extraction from a crushed representative sample of the clay

masonry units, and determines the amounts of soluble magnesium, sodium and potassium ions,

released under the test conditions, which may be correlated with the potentially damaging effect of

salts of those ions on cementitious mortars in certain circumstances, or even on the units themselves.

These salts are known as «active» soluble salts in EN 771-1.
4 Symbols
M is the number of milligrams of Mg equivalent to 1 ml of EDTA
x,y is the volume of EDTA titrated, en millilitres (ml)
C is the lower reference sample concentration, in percentage (%)
C is the higher reference sample, concentration, in percentage (%)
C is the sample concentration, in percentage (%)
E is the measured signal for the lower reference sample concentration C
1 1
E is the measured signal for the higher reference sample, concentration C
2 2
E is the measured signal for sample
d is the dilution factor
5 Materials
5.1 For all methods

Distilled or deionized water for extraction of active soluble salts from the sample, and for preparation of

analytical test solutions.
Hydrochloric acid (relative density 1,18).
All chemicals shall be of analytical reagent grade.
---------------------- Page: 6 ----------------------
SIST EN 772-5:2016
EN 772-5:2016 (E)

5.2 Instrumental method Atomic Absorption Spectroscopy (AAS) and flame photometry

Hydrated Lanthanum chloride LaCL ∙ 7H O, 210 g/l Solution
3 2
Caesium Chloride C
...

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.]LGDNLKPrüfverfahren für Mauersteine - Teil 5: Bestimmung des Gehalts an aktiven löslichen Salzen von MauerziegelnMéthodes d'essai des éléments de maçonnerie - Partie 5: Détermination de la teneur en sels solubles actifs des éléments de maçonnerie en terre cuiteMethods of test for masonry units - Part 5: Determination of the active soluble salts content of clay masonry units91.100.25Ceramic building productsICS:Ta slovenski standard je istoveten z:FprEN 772-5 revkSIST FprEN 772-5:2015en,fr,de01-september-2015kSIST FprEN 772-5:2015SLOVENSKI

STANDARD
kSIST FprEN 772-5:2015
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
FINAL DRAFT
FprEN 772-5
July 2015 ICS 91.100.25 Will supersede EN 772-5:2001English Version

Methods of test for masonry units - Part 5: Determination of the active soluble salts content of clay masonry units

Méthodes d'essai des éléments de maçonnerie - Partie 5: Détermination de la teneur en sels solubles actifs des éléments de maçonnerie en terre cuite

Prüfverfahren für Mauersteine - Teil 5: Bestimmung des Gehalts an aktiven löslichen Salzen von Mauerziegeln This draft European Standard is submitted to CEN members for unique acceptance procedure. It has been drawn up by the Technical Committee CEN/TC 125.

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, 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.

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:
Avenue Marnix 17,

B-1000 Brussels © 2015 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. FprEN 772-5:2015 EkSIST FprEN 772-5:2015

FprEN 772-5:2015 (E) 2 Contents Page Foreword ..............................................................................................................................................................3 1 Scope ......................................................................................................................................................4 2 Normative references ............................................................................................................................4 3 Principle ..................................................................................................................................................4 4 Symbols ..................................................................................................................................................4 5 Materials .................................................................................................................................................4 5.1 For all methods ......................................................................................................................................4 5.2 Instrumental method Atomic Absorption Spectroscopy (AAS) and flame photometry .................5 5.3 Instrumental method Atomic Absorption Spectroscopy (AAS) and flame photometry or inductively coupled plasma spectrometry (ICP) ................................................................................5 5.4 EDTA method (alternative) ....................................................................................................................5 6 Apparatus ...............................................................................................................................................5 7 Preparation of sample ...........................................................................................................................6 7.1 Sampling .................................................................................................................................................6 7.2 Crushing .................................................................................................................................................6 8 Extraction procedure .............................................................................................................................6 9 Determinations of cations by instrumental techniques.....................................................................6 9.1 General ....................................................................................................................................................6 9.2 Atomic absorption spectroscopy method (AAS) and flame photometry .........................................7 9.2.1 Sample preparation ...............................................................................................................................7 9.2.2 Calibration: preparation of the reference series ................................................................................7 9.2.3 Spectroscopic lines and parameters for AAS and flame photometry analysis ..............................7 9.3 Inductively coupled plasma spectrometry method (ICP) ..................................................................8 9.3.1 General ....................................................................................................................................................8 9.3.2 Spectroscopic lines for ICP analysis ...................................................................................................8 9.4 Calculation of the results ......................................................................................................................8 10 Alternative method of determination of the content of active soluble salts ...................................9 10.1 Preparations of reagents for magnesium determination ..................................................................9 10.1.1 Magnesium test solution (1,0 mg Mg/ml) ............................................................................................9 10.1.2 Preparation of EDTA test solution (0,5 %) ..........................................................................................9 10.2 First titration (calcium plus magnesium) ............................................................................................9 10.3 Second titration (calcium) .....................................................................................................................9 10.4 Magnesium content ...............................................................................................................................9 10.5 Determination of sodium and potassium ............................................................................................9 11 Expression of results ......................................................................................................................... 10 12 Test report ........................................................................................................................................... 10

kSIST FprEN 772-5:2015

FprEN 772-5:2015 (E) 3 Foreword This document (FprEN 772-5:2015) has been prepared by Technical Committee CEN/TC 125 “Masonry”, the secretariat of which is held by BSI. This document is currently submitted to the Unique Acceptance Procedure. This document will supersede EN 772-5:2001. The crushing procedure in 7.2 has been amended so that the sample, after reducing to particles of not greater than approximately 1 mm in size, is dried in a ventilated oven to constant mass prior to further grinding and sieving. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. kSIST FprEN 772-5:2015

FprEN 772-5:2015 (E) 4 1 Scope This European Standard specifies a method for determining the active soluble salts content of clay masonry units. 2 Normative references The following referenced documents are indispensable for the application 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 771-1, Specification for masonry units — Part 1: Clay masonry units ISO 3310-1, Test sieves — Technical requirements and testing — Part 1: Test sieves of metal wire cloth ISO 3310-2, Test sieves — Technical requirements and testing — Part 2: Test sieves of perforated metal plate 3 Principle The method adopted is based on water extraction from a crushed representative sample of the clay masonry units, and determines the amounts of soluble magnesium, sodium and potassium ions, released under the test conditions, which may be correlated with the potentially damaging effect of salts of those ions on cementitious mortars in certain circumstances, or even on the units themselves. These salts are known as «active» soluble salts in EN 771-1. 4 Symbols MMg is the number of milligrams of Mg equivalent to 1 ml of EDTA x,y is the volume of EDTA titrated, en millilitres (ml) C1 is the lower reference sample concentration, in percentage (%) C2 is the higher reference sample, concentration, in percentage (%) Cx is the sample concentration, in percentage (%) E1 is the measured signal for the lower reference sample concentration C1 E2 is the measured signal for the higher reference sample, concentration C2 Ex is the measured signal for sample d is the dilution factor 5 Materials 5.1 For all methods Distilled or deionized water for extraction of active soluble salts from the sample, and for preparation of analytical test solutions. Hydrochloric acid (relative density 1,18). All chemicals shall be of analytical reagent grade. kSIST FprEN 772-5:2015

FprEN 772-5:2015 (E) 5 5.2 Instrumental method Atomic Absorption Spectroscopy (AAS) and flame photometry Hydrated Lanthanum chloride La Cl 3 7 H2O 210 g / 1 Solution Caesium Chloride CsCl 63 g / l Solution 5.3 Instrumental method Atomic Absorption Spectroscopy (AAS) and flame photometry or inductively coupled plasma spectrometry (ICP) High purity standard solutions 5.4 EDTA method (alternative) Magnes

...

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