SIST EN 1423:2012

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

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.
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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

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
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

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

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 are not only restricted to the two examples of Table 3 and Table 4. Table 3  Example 1: 425-90 microns Sieves ISO 565:1990R 40/3µm Cumulative retained mass % 500 0 to 2 425 0 to 10 250 20 to 60 150 60 to 95 90 95 to 100
Table 4  Example 2: 600-125 microns Sieves ISO 565:1990R 40/3µm Cumulative retained mass % 710 0 to 2 600 0 to 10 355 30 to 70 212 70 to 100 125 95 to 100
The granulometry of the glass beads shall be determined in accordance with 5.3.3. Sieves ISO 565:1990R 40/3 Cumulative retained mass % upper safety 0 to 2 upper nominal 0 to 10 intermediate N1 to N2 lower nominal 95 to 100 SIST EN 1423:2012

The pH value of the antiskid aggregates shall be determined in accordance with 5.4.1. The pH value shall be not less than 5 and not greater than 11. The result shall be declared as “Pass” or “Fail. 4.2.2 Granulometry Granulometry is the measure of the size gradation of a collection of grains. The granulometry of the transparent antiskid aggregates shall be described giving the minimum and the maximum percentages, by mass, of the cumulative retained particles on metal wire cloth test sieves ISO 565:1990 - sizes R 40/3 - using the test sieving procedure defined in ISO 2591-1. Granulometry of transparent antiskid aggregates shall be described by selecting sieves in accordance with the following rules (see also Table 5): − 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

The range of possible granulometries is defined in this clause and by Table 5 above.
Many granulometries are acceptable dependent on customer requirements and manufacturer specifications.
The examples showed in Table 6 and Table 7 are given to demonstrate proper interpretation of the standard. Granulometries are not only restricted to the two examples of Table 6 and Table 7. Table 6  Example 3: 710-150 microns Sieves ISO565:1990Cumulative retained mass R 40/3 % 1 mm 0 to 2 710 µm 0 to 10 425 µm 5 to 25 250 µm 40 to 80 150 µm 95 to l00 90 µm 99 to 100
Table 7  Example 4: 1 000-150 microns Sieves ISO565:1990R 40/3 Cumulative retained mass % 1,18 mm 0 to 2 1 mm 0 to 10 600 µm 10to 50 355 µm 50 to 80 212 µm 85 to 100 150 µm 95 to 100 90 µm 99 to 100 SIST EN 1423:2012

The pH value of the antiskid aggregates shall be determined in accordance with 5.4.1. The pH value shall be not less than 5 and not greater than 11. The result shall be declared as “Pass” or “Fail. 4.3.2 Visibility characteristics 4.3.2.1 Chromaticity co-ordinates The colour of non transparent antiskid aggregate shall be defined by chromaticity co-ordinates (x,y). The chromaticity co-ordinates shall be determined in accordance with 5.5.2.1 and shall lie inside the region defined by the corner points given in Table 8. Table 8  Corner points of the chromaticity regions for non transparent antiskid aggregates Corner point No. 1 2 3 4 X 0,355 0,305 0,285 0,335 y 0,355 0,305 0,325 0,375
4.3.2.2 Luminance factor For non transparent antiskid aggregate, luminance factor shall be determined in accordance with 5.5.2.2.
The luminance factor ß shall be greater than 0,70. SIST EN 1423:2012

40); − the lower nominal sieve shall retain 95 % to 100 % of the beads; − the lower safety sieve shall retain 99 % to 100 % of the aggregates; this sieve shall not be lower than 90 µ.
Table 9  Selecting sieves for aggregates Sieves ISO565:1990Cumulative retained mass R 40/3
% Upper safety 0 to 2 Upper nominal 0 to 10 intermediate N1 to N2 Lower nominal 95 to 100 Lower safety 99 to 100
The range of possible granulometries is defined in this clause and by Table 9 above.
Many granulometries are acceptable dependent on customer requirements and manufacturer specifications.
The examples showed in Table 10 and Table 11 are given to demonstrate proper interpretation of the standard. Granulometries are not only restricted to the two examples of Table 10 and Table 11. SIST EN 1423:2012

R 40/3
% 1 mm 0 to 2
710 µm
0 to 10
425 µm 5 to 25
250 µm 40 to 80
150 µm 95 to l00
90 µm 99 to 100
Table 11  Example 4: 1 000-150 microns Sieves ISO 565:1990R 40/3
Cumulative retained mass
% 1,18 mm 0 to 2 1 mm 0 to 10 600 µm 10to 50 355 µm 50 to 80 212 µm 85 to 100 150 µm 95 to 100 90 µm 99 to 100
The granulometry of non transparent antiskid aggregates shall be determined in accordance with 5.5.3. 4.3.4 Durability aspects  Resistance to fragmentation (friability) Resistance to fragmentation is indicated by the friability index. The friability index of non transparent antiskid aggregates shall be determined in accordance with 5.5.4 and the maximum value of the friability index shall be declared. The compliance with the durability test is presumed to retain the performances stated for the requirements. 4.4 Mixtures of glass beads and antiskid aggregates 4.4.1 General The characteristics of a mixture of glass beads and anti-skid aggregates and their requirements, together with their test methods and the way of expression their results, shall be determined separately for glass beads and antiskid aggregated in the following way: − for glass beads: according to entire 4.1; − for transparent antiskid aggregates: according to entire 4.2; − for non transparent antiskid aggregates according to entire 4.3. SIST EN 1423:2012

Reference to the test method standards should be made to allow the selection of a suitable representative sample. 5.2 Sampling In order to test glass beads, antiskid aggregates and mixtures of them a representative sample of the material to be tested shall be taken as follows. The drop on material sample shall be taken from at least three bags or one Intermediate Bulk Container (IBC). When M, in kilograms, is the mass of the drop on material to be tested, at least 1,5 kg of the material shall be taken by inserting an appropriate probe in the full height of a certain number 'S' of bags, or inserting the probe S times in the whole height of an IBC. The probe shall be driven to the bottom of the bag, in an upright position, or into the IBC containing the material to be tested. Another possibility to take a representative sample from the S bags is to use a 1/1 splitter. S is calculated by the formula: 150MS=; and it shall be rounded up to the next higher unit. A representative sample shall be obtained by mixing the material taken with the S insertions of the probe in the bags. The representative sample shall be split by means of a 1/1 splitter in the number of samples necessary for the tests. NOTE A test probe can be constructed from a tube of 28 mm to 34 mm diameter and 1 000 mm to 1 200 mm in length. The end of the probe which reaches the bottom of the bag or the IBC should be fitted with a plugging system. After penetration of the probe to the full depth of the bag or the IBC, the plug is inserted and the probe removed. The contents of the probe represent a single sample of the material to be tested. When sampling into the IBC, if the test probe cannot go to the full depth of the container, the following alternative method shall be used: • a quantity of 20 kg ± 1 kg shall be removed from the IBC in a bucket; • the content of the bucket shall be split by means of a 1/1 splitter in the number of samples necessary for the tests. SIST EN 1423:2012
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