Road marking materials - Drop on materials - Glass beads, antiskid aggregates and mixtures of the two

This European Standard specifies the requirements applicable to glass beads, anti-skid aggregates, and the mixture of the two, which are applied as drop-on materials on road markings products (i.e. paints, cold plastics and thermoplastics).
Glass beads and/or anti-skid aggregates, or their mixture, applied during the process of manufacturing other road marking products are not covered by this European Standard.

Straßenmarkierungsmaterialien - Nachstreumittel - Markierungs-Glasperlen, Griffigkeitsmittel und Nachstreugemische

Diese Europäische Norm legt die geltenden Anforderungen an Markierungs-Glasperlen, Griffigkeitsmittel und Nachstreugemische fest, die als Nachstreumittel auf Straßenmarkierungsprodukte (d. h. Markierungsfarben, Kaltplastikmassen und Heißplastikmassen) aufgebracht werden.
Markierungs-Glasperlen und/oder Griffigkeitsmittel bzw. Nachstreugemische, die während des Herstellungs-prozesses weiterer Markierungsprodukte aufgebracht werden, werden nicht durch diese Europäische Norm abgedeckt.

Produits de marquage routier - Produits de saupoudrage - Microbilles de verre, granulats antidérapants et mélange de ces deux composants

La présente Norme européenne spécifie les exigences applicables aux microbilles de verre, aux granulats
antidérapants et aux mélanges de ces deux composants, qui sont appliqués sous forme de produits de
saupoudrage sur les produits de marquage routier (c'est-à-dire les peintures, les enduits à froid et les enduits à
chaud).
Les microbilles de verre et/ou les granulats antidérapants, ou leurs mélanges, appliqués lors du processus de
fabrication d'autres produits de marquage routier ne sont pas couverts par la présente Norme européenne.

Materiali za označevanje vozišča - Materiali za posipanje - Steklene kroglice, posipi za zmanjšanje drsnosti in mešanice obeh

Ta evropski standard določa zahteve za steklene kroglice, posipe za zmanjševanje drsnosti in mešanice obeh, ki se uporabljajo kot materiali za posipanje na izdelkih za označevanje vozišča (tj. barvah, hladni plastiki in termoplastiki). Ta evropski standard ne zajema steklenih kroglic in/ali posipov za zmanjševanje drsnosti ali mešanic obeh, ki se uporabljajo med postopkom proizvodnje drugih izdelkov za označevanje vozišča.

General Information

Status
Published
Publication Date
07-Feb-2012
Current Stage
9092 - Decision on results of review/2YR ENQ - revise - Review Enquiry
Completion Date
21-Jan-2020

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Straßenmarkierungsmaterialien - Nachstreumittel - Markierungs-Glasperlen, Griffigkeitsmittel und NachstreugemischeProduits de marquage routier - Produits de saupoudrage - Microbilles de verre, granulats antidérapants et mélange de ces deux composantsRoad marking materials - Drop on materials - Glass beads, antiskid aggregates and mixtures of the two93.080.20Materiali za gradnjo cestRoad construction materialsICS:Ta slovenski standard je istoveten z:EN 1423:2012SIST EN 1423:2012en,fr,de01-april-2012SIST EN 1423:2012SLOVENSKI

STANDARDSIST EN 1423:1999/A1:2004SIST EN 1423:19991DGRPHãþD
SIST EN 1423:2012
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 1423
February 2012 ICS 93.080.20 Supersedes EN 1423:1997English Version

Road marking materials - Drop on materials - Glass beads, antiskid aggregates and mixtures of the two

Produits de marquage routier - Produits de saupoudrage - Microbilles de verre, granulats antidérapants et mélange de ces deux composants

Straßenmarkierungsmaterialien - Nachstreumittel - Markierungs-Glasperlen, Griffigkeitsmittel und Nachstreugemische This European Standard was approved by CEN on 17 December 2011.

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, 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 1423:2012: ESIST EN 1423:2012

EN 1423:2012 (E) 2 Contents Foreword ............................................................................................................................................................. 5 1 Scope ...................................................................................................................................................... 6 2 Normative references ............................................................................................................................ 6 3 Terms and definitions ........................................................................................................................... 6 4 Requirements ......................................................................................................................................... 7 4.1 Glass beads ............................................................................................................................................ 7 4.1.1 Surface treatments of glass beads ...................................................................................................... 7 4.1.2 Visibility characteristics ........................................................................................................................ 7 4.1.3 Granulometry ......................................................................................................................................... 8 4.1.4 Dangerous substances ....................................................................................................................... 10 4.1.5 Durability aspects  Resistance to chemicals: water, hydrochloric acid, calcium chloride and sodium sulphide ........................................................................................................................... 10 4.2 Transparent antiskid aggregates ....................................................................................................... 10 4.2.1 pH value ................................................................................................................................................ 10 4.2.2 Granulometry ....................................................................................................................................... 10 4.2.3 Dangerous substances ....................................................................................................................... 12 4.2.4 Durability aspects  Resistance to fragmentation (friability) ........................................................ 12 4.3 Non transparent antiskid aggregates ................................................................................................ 12 4.3.1 pH value ................................................................................................................................................ 12 4.3.2 Visibility characteristics ...................................................................................................................... 12 4.3.3 Granulometry ....................................................................................................................................... 13 4.3.4 Durability aspects  Resistance to fragmentation (friability) ........................................................ 14 4.4 Mixtures of glass beads and antiskid aggregates ............................................................................ 14 4.4.1 General .................................................................................................................................................. 14 4.4.2 Durability aspects ................................................................................................................................ 15 5 Testing, assessment and sampling methods ................................................................................... 15 5.1 General .................................................................................................................................................. 15 5.2 Sampling ............................................................................................................................................... 15 5.3 Glass beads .......................................................................................................................................... 16 5.3.1 Surface treatments of glass beads .................................................................................................... 16 5.3.2 Visibility characteristics ...................................................................................................................... 16 5.3.3 Granulometry ....................................................................................................................................... 16 5.3.4 Dangerous substances ....................................................................................................................... 16 5.3.5 Durability  Resistance to chemicals: water, hydrochloric acid, calcium chloride and sodium sulphide .................................................................................................................................. 16 5.4 Transparent antiskid aggregates ....................................................................................................... 16 5.4.1 pH value ................................................................................................................................................ 16 5.4.2 Granulometry ....................................................................................................................................... 17 5.4.3 Dangerous substances ....................................................................................................................... 17 5.4.4 Durability  Resistance to fragmentation (friability)....................................................................... 17 5.5 Non transparent antiskid aggregates ................................................................................................ 17 5.5.1 pH value ................................................................................................................................................ 17 5.5.2 Visibility Characteristics ..................................................................................................................... 17 5.5.3 Granulometry ....................................................................................................................................... 17 5.5.4 Durability  Resistance to fragmentation (friability)....................................................................... 17 5.6 Mixture of glass beads and antiskid aggregates .............................................................................. 17 6 Evaluation of conformity ..................................................................................................................... 18 6.1 General .................................................................................................................................................. 18 6.2 Initial type testing and type testing.................................................................................................... 18 6.2.1 General .................................................................................................................................................. 18 6.2.2 Test samples, testing and compliance criteria ................................................................................. 19 SIST EN 1423:2012

EN 1423:2012 (E) 3 6.2.3 Test reports .......................................................................................................................................... 21 6.3 Factory Production control (FPC) ...................................................................................................... 21 6.3.1 General ................................................................................................................................................. 21 6.3.2 Requirements ....................................................................................................................................... 21 6.3.3 Product specific requirements ........................................................................................................... 25 6.3.4 Initial inspection of factory and FPC ................................................................................................. 26 6.3.5 Continuous surveillance of FPC ........................................................................................................ 26 6.3.6 Procedure for modifications .............................................................................................................. 26 7 Marking ................................................................................................................................................. 27 Annex A (normative)

Test method to determine the refractive index of the glass beads ......................... 28 A.1 General ................................................................................................................................................. 28 A.2 Principle ............................................................................................................................................... 28 A.3 Equipment and materials .................................................................................................................... 29 A.4 Procedure ............................................................................................................................................. 30 A.5 Expression of the results ................................................................................................................... 30 Annex B (normative)

Test methods to determine the resistance of the glass beads to the effects of water, hydrochloric acid, calcium chloride and sodium sulphide ............................................. 31 B.1 Resistance to the effects of water ..................................................................................................... 31 B.2 Resistance to the effects of hydrochloric acid ................................................................................ 31 B.3 Resistance to the effects of calcium chloride .................................................................................. 31 B.4 Resistance to the effects of sodium Sulphide ................................................................................. 31 Annex C (normative)

Glass bead defects ....................................................................................................... 33 C.1 Oval glass beads (see Figure C.1) ..................................................................................................... 33 C.2 Satellites (see Figure C.2) ................................................................................................................... 33 C.3 Tear shaped glass beads (see Figure C.3)........................................................................................ 33 C.4 Glass beads fused together (see Figure C.4) ................................................................................... 34 C.5 Roundish glass beads (see Figure C.5) ............................................................................................ 34 C.6 Opaque glass beads (see Figure C.6) ............................................................................................... 34 C.7 Milky glass beads (see Figure C.7) .................................................................................................... 35 C.8 Gas inclusions (see Figure C.8) ......................................................................................................... 35 C.9 Grains (see Figure C.9) ....................................................................................................................... 35 C.10 Foreign particles .................................................................................................................................. 36 Annex D (normative)

Test method to determine maximum weighted percentage of defective glass beads  Procedure ............................................................................................................................. 37 D.1 General ................................................................................................................................................. 37 D.2 Results of counting ............................................................................................................................. 38 Annex E (normative)

Test method to determine the presence of the moisture proof coating ................. 40 E.1 Procedure A ......................................................................................................................................... 40 E.2 Procedure B ......................................................................................................................................... 41 Annex F (normative)

Test method to determine the presence of floatation coating ................................. 42 F.1 General ................................................................................................................................................. 42 F.2 Principle ............................................................................................................................................... 42 F.3 Apparatus and reagents ..................................................................................................................... 42 F.4 Procedure ............................................................................................................................................. 42 F.5 Results .................................................................................................................................................. 42 Annex G (normative)

Test method to determine the friability index of the antiskid aggregates ............. 43 G.1 General ................................................................................................................................................. 43 G.2 Apparatus ............................................................................................................................................. 43 G.3 Material to be tested ............................................................................................................................ 43 G.4 Procedure ............................................................................................................................................. 44 G.5 Expression of results .......................................................................................................................... 44 G.6 Precision .............................................................................................................................................. 45 Annex H (informative)

Alternative test methods to determine maximum weighted percentage of defective glass beads ......................................................................................................................... 46 H.1 General ................................................................................................................................................. 46 H.2 Visual test method ............................................................................................................................... 46 SIST EN 1423:2012

EN 1423:2012 (E) 4 H.3 Automatic test method ........................................................................................................................ 47 Annex I (normative)

Test method to determine the presence of dangerous substances ......................... 53 I.1 Reference method................................................................................................................................ 53 I.2 Quick alternative method .................................................................................................................... 54 Annex J (normative)

Test method to determine glass beads and antiskid aggregates ratio in mixtures of the two .............................................................................................................................. 55 J.1 General .................................................................................................................................................. 55 J.2 Equipment and material ...................................................................................................................... 55 J.3 Procedure ............................................................................................................................................. 55 J.4 Alternative methods ............................................................................................................................ 55 Annex ZA (informative)

Clauses of this European Standard addressing the provisions of the EU Construction Products Directive ........................................................................................................ 57 Bibliography ..................................................................................................................................................... 70

SIST EN 1423:2012

EN 1423:2012 (E) 5 Foreword This document (EN 1423:2012) has been prepared by Technical Committee CEN/TC 226 “Road equipment”, the secretariat of which is held by AFNOR. 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 August 2012, and conflicting national standards shall be withdrawn at the latest by August 2012. 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 1423:1997. This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association, and supports essential requirements of EU Directive(s). For relationship with EU Directive(s), see informative Annex ZA, which is an integral part of this document. The main changes incorporated in this revision are: a) Modification of the definitions to clarify better the different products glass beads antiskid aggregates and mixtures of the two; b) Update of the standard to the new technologies that allow lower defects on glass beads with diameter equal or bigger than 1 mm; c) Addition of the essential characteristic of dangerous substances for glass beads and transparent antiskid aggregates in glass; d) Addition of test method to determine presence of dangerous substances; e) Addition of test method to determine glass beads and antiskid aggregates ratio in mixtures of the two; f) Modification of the order of paragraphs to comply to the template for European Standards; g) Addition of Clause 6 “Evaluation of conformity”; h) Modification of parts of Annex ZA to comply to the template for product standard. 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, 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. SIST EN 1423:2012

EN 1423:2012 (E) 6 1 Scope This European Standard specifies the requirements applicable to glass beads, anti-skid aggregates, and the mixture of the two, which are applied as drop-on materials on road markings products (i.e. paints, cold plastics and thermoplastics). Glass beads and/or anti-skid aggregates, or their mixture, applied during the process of manufacturing other road marking products are not covered by this European Standard. 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 ISO 787-9, General methods of test for pigments and extenders — Part 9: Determination of pH value of aqueous suspension (ISO 787-9) ISO 565:1990, Test sieves — Metal wire cloth, perforated metal plate and electroformed sheet — Nominal sizes of openings ISO 2591-1, Test sieving — Part 1: Methods using test sieves of woven wire cloth and perforated metal plate ISO 7724-2, Paints and varnishes — Colorimetry — Part 2: Colour measurement 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 types of drop-on materials

3.1.1 glass bead transparent spherical glass particle, used to provide night visibility for the road markings by retroreflecting the incident headlight beams of a vehicle towards the driver NOTE This product is defined by five characteristics: refractive index, maximum weighted percentage of defective glass beads, granulometry, content of dangerous substances and resistance to chemicals. In addition, surface treatment with its intended use need to be declared by manufacturer (if any). 3.1.2 antiskid aggregate hard grain of natural or artificial origin, used to provide antiskid qualities for the road markings NOTE This product is defined by the following characteristics: − transparent antiskid aggregates: granulometry, resistance to fragmentation (friability); in addition, for transparent antiskid aggregates in glass, content of dangerous substances; − non-transparent antiskid aggregate granulometry, resistance to fragmentation (friability) chromaticity co-ordinates and luminance factor. 3.1.3 mixture of glass beads and antiskid aggregates product which is a combination of here above product criteria and their relative ratio SIST EN 1423:2012

EN 1423:2012 (E) 7 3.2 intermediate bulk container IBC container with a capacity of up to 1 300 kg, used as an intermediate solution in between bags and tins (25 kg to 50 kg) and bulk transport 4 Requirements 4.1 Glass beads 4.1.1 Surface treatments of glass beads 4.1.1.1 General Special coatings may be applied to the surface of the glass beads to enhance their properties. 4.1.1.2 Moisture proof coating Moisture proof coating is added to avoid that the glass bead absorb air humidity. When tested in accordance with 5.3.1.1, the presence of moisture proof coating shall be declared as Pass” or “Fail”. 4.1.1.3 Floatation coating Floatation coating is added to glass beads mainly to allow to the beads to float (and so do not penetrate too much inside) when dropped on road marking materials in liquid phase. When tested in accordance with 5.3.1.2 the presence of floatation coating shall be declared as Pass” or “Fail”. 4.1.1.4 Adhesion coating Adhesion coating is added to allow higher adhesion between the binder and the glass beads when those are dropped on road marking materials. When the manufacturer declares the presence of an adhesion coating on the glass beads it shall be tested in accordance with a test method proposed by the manufacturer. The presence of the coating shall be declared as “Pass” or “Fail”. 4.1.1.5 Other coatings When the manufacturer declares the presence of a coating, other than those in 4.1.1.2, 4.1.1.3 and 4.1.1.4, it shall be proved by testing the glass beads in accordance with a test method proposed by the manufacturer. The presence of the coating shall be declared as “Pass” or “Fail”. 4.1.2 Visibility characteristics 4.1.2.1 Refractive index The refractive index or index of refraction of a substance is a measure of the speed of light in that substance. It is expressed as a ratio of the speed of light in vacuum relative to that in the considered medium. The refractive index n of glass beads, shall be determined in accordance with 5.3.2.1. It shall comply with the following classes: • Class A n ≥ 1,5; • Class B n ≥ 1,7; • Class C n ≥ 1,9. SIST EN 1423:2012

EN 1423:2012 (E) 8 4.1.2.2 Maximum weighted percentage of defective glass beads In a collection of glass beads, maximum weighted percentage of defective glass beads is used to identify the percentage of glass beads that are not perfectly spherical. The reference method for the determination of the maximum weighted percentage of defective glass beads is described in 5.3.2.2. Glass beads defects are listed in Annex C. Once the reference method has been applied and only one defect per bead has been taken into consideration, the maximum weighted percentage of defective beads shall be 20 % including a maximum of 3 % of grains and foreign particles (see Table 1). If a granulometry includes beads with diameters lower than 1 mm and diameters equal to or greater than 1 mm they shall be separated by means of a sieve with nominal sizes of openings of 1 mm and checked separately. Table 1  Maximum weighted percentage of defective glass beads Diameter of glass beads

mm Maximum weightedpercentage of defective glass beads

% Maximum weighted percentage of grains and foreign particles % < 1 20 3 ≥ 1 20 3

During the separate checking of the glass beads with diameters lower than 1 mm and diameters equal to or greater than 1 mm, the maximum weighted percentage of defective glass beads of each fraction shall be recorded separately in the results of counting. 4.1.3 Granulometry Granulometry is the measure of the size gradation of a collection of glass beads. The granulometry of the glass beads shall be declared giving the minimum and the maximum percentages by mass of the cumulative retained glass beads on metal wire cloth test sieves sizes R 40/3 according to ISO 565:1990, using the test sieving procedure defined in ISO 2591-1. Granulometries of glass beads shall be described by selecting sieves in accordance with the following rules (see also Table 2): − the upper safety sieve shall retain 0 % to 2 % of the total mass of the antiskid aggregates; − the upper nominal sieve shall retain 0 % to 10 % of the antiskid aggregates; − if necessary, intermediate sieves shall be added to limit the ratio between the nominal sizes of openings of two successive sieves to a maximum of 1,7 : 1; − for each of the intermediate sieves, the range by mass between the minimum N1 % and the maximum N2 % of the cumulative retained percentages shall be not more than 40 % (N2 - N1 ≤

40); − the lower nominal sieve shall retain 95 % to 100 % of the beads. SIST EN 1423:2012

EN 1423:2012 (E) 9 Table 2  Selecting sieves for glass beads

The range of possible granulometries is defined in this clause and by Table 2 above.

Many granulometries are acceptable dependent on customer requirements and manufacturer specifications.

The examples showed in Table 3 and Table 4 are given to demonstrate proper interpretation of the standard. Granulometries of glass beads a

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