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Draft, June 2017

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Technical test conditions for marking systems

TP M 17

Draft June 2017
TP M

2018

drawn up by the Federal Highway Research Institute

Bergisch Gladbach

version 2018

Foreword

The Technical test conditions for marking systems (the ‘Technischen Prüfbedingungen für Markierungssysteme’) were developed by the German Federal Highway Research Institute (the ‘Bundesanstalt für Straßenwesen’) under assignment from the German Federal Ministry of Transport and Digital Infrastructure (the ‘BMVI’) and coordinated with marking specialists from the federal states of Germany. Industry input was collected before publication by the German Road Marking Research Institute (the ‘DSGS eV’).
The Technical test conditions for marking systems [Technischen Prüfbedingungen für Markierungssysteme] were developed by the German Federal Highway Research Institute [Bundesanstalt für Straßenwesen] under assignment from the German Federal Ministry for Transport and Digital Infrastructure [BMVI] and coordinated with the federal states of Germany and their marking specialists. Industry input was collected before publication by the German Road Marking Research Institute [DSGS eV].

The obligations arising from Directive (EU) 2015/1535 of the European Parliament and of the Council of 9 September 2015 laying down a procedure for the provision of information in the field of technical regulations and of rules on Information Society services (OJ L 241 of 17.9.2015, p. 1) have been met.

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Contents

General information

The Technical test conditions for marking systems (the ‘TP M’) set out the requirements for suitability tests on permanent (white) and temporary (yellow) markings made up of marking systems. The provisions of this TP M are based on test standard DIN EN 13197. They refine these in several points and/or indicate which of the parameters possible under DIN EN 13197 apply in Germany. If a particular section does not draw a distinction, the provisions in question apply to both permanent and temporary markings.
The Technical test conditions for marking systems [TP M] set out the requirements for suitability tests on permanent (white) and temporary (yellow) markings made up of marking systems. The provisions of this TP M are based on test standard DIN EN 13197. They refine these in several points and/or indicate which of the parameters possible under DIN EN 13197 apply in Germany. If a particular section does not draw a distinction, the provisions in question apply to both permanent and temporary markings.

The marking materials and additives used for the markings must meet the Technical terms of delivery for marking materials (the ‘TL M’). In addition, markings must also adhere to the Additional technical contractual conditions and guidelines for road markings (the ‘ZTV M’).


The suitability test on marking systems consists of a load test on the turntable testing system and a chemical/physical test (prototype testing).

Theapplicant is the party requesting the suitability test and indicated as the responsible contact for the accredited testing laboratory.
The applicant is the party requesting the suitability test and indicated as the responsible contact for the accredited testing laboratory.

The materials manufacturer is the party that manufactures and markets the marking materials.


A test confirmation is issued if the minimum European requirements are met.

The abbreviation NPD (No Performance Determined) means that no performance level has been defined for the property of the marking system in question.

Load testing on marking systems

Turntable testing system

Length: 397 mm (± 2 mm)

Width: 198 mm (± 2 mm)
Width: 198 mm (± 2 mm)

Thickness: 48 mm (± 2 mm).


Studies have shown that reactive systems consisting of 2 or 3 components (formula preparation ratio of 98:2 or 1:1), achieve comparable results in terms of transport properties and can be applied with either formula preparation ratio, taking into account manufacturer instructions. The formula preparation ratio is not indicated on the test certificate if the materials manufacturer confirms in writing before the start of the test that the marking material can be applied in a formula preparation ratio of 98:2 as well as in a formula preparation ratio of 1:1 without any difference in chemical composition. The 98 % component in the 2-component material corresponds to a mixture of components A and B from the 3-component material in a mixing ratio (corresponding formula preparation ratio) of 1:1. This does not apply to systems with curing-induced reflective beads (also known as ‘reactive beads’).

Table 1: Simplified description of application techniques according to the materials group used

Simplified description of application techniques Detailed descriptions in the application log Materials group Guniting Airless Paints, thermoplastics and cold plastics Compressed air Online Airless with intermix beads Thermospray Path-dependent atomiser air Atomiser air with external mix - liquid curing agent Regular agglomerates Multi-dot line Cold plastic, thermoplastic Regular dots Hot-melt extruder Spotflex Extruder/special marker Visidot system Irregular agglomerates Extruder Cold plastic, thermoplastic Prestressed sheet-steel springs (Feichtner system) Perforated sheet Spiked roller Centrifuge techniques Full line Screed box Cold plastic, thermoplastic Extruder Full line with patterned surface Screed box + patterned roller Cold plastic Roller Rolled on Prime coat (primer), rolled on Films without primer, rolled on Bitumen plus, rolled on Asphalt plus, rolled on Preformed marking system Preformed marking system fusable with manual torch Thermoplastics, possibly cold plastic as well in the future Preformed marking system fusable with manual torch, with additional thermoplastic dots

Unlike the detailed description of the application method in the application log, the simplified descriptions of the application techniques listed in Table 1 are indicated on the test certificate or test confirmation.

Table 1: Simplified description of application techniques according to the materials group used

Simplified description of application techniques Detailed description in the application log Materials group Guniting Airless Paints, thermoplastics and cold plastics Compressed air Online Airless with intermix beads Thermospray Path-dependent atomiser air Atomiser air with external mix - liquid curing agent Regular agglomerates Multi-dot line Cold plastic, thermoplastic Regular dots Hot-melt extruder Spotflex Extruder/special marker Visidot system Irregular agglomerates Extruder Cold plastic, thermoplastic Prestressed sheet-steel springs (Feichtner system) Perforated sheet Spiked roller Centrifuge techniques Full line Screed box Cold plastic, thermoplastic Extruder Full line with patterned surface Screed box + patterned roller Cold plastic Roller Rolled on Prime coat (primer), rolled on Films without primer, rolled on Bitumen plus, rolled on Asphalt plus, rolled on Preformed marking system Preformed marking system fusable with manual torch Thermoplastics, Preformed marking system fusable with manual torch, with additional thermoplastic dots possibly cold plastic as well in the future

The marking system is applied to 4 test plates. If the dryness must be determined, a fifth test plate is required. A test plate serves as a retained sample and defines the new condition. Three test plates are run over in the turntable testing system.

Application-specific measurements

The marking shall be applied at an air temperature of between +10 °C and +35 °C and a relative humidity of no more than 80 %. The air temperature and relative humidity shall be determined and documented immediately before the start of application.

The drying time before traffic readiness must be determined for paints and cold plastic materials according to the classes listed in Table 2 and documented along with the climatic conditions (ambient temperature, temperature of test plate surface and relative humidity). In principle, for thermoplastic markings, the drying time falls under class T2 (≤10 min.). A marking is ready for traffic if traffic does not cause any deformations to the marking material. The drying time must be determined as per DIN EN 13197, Appendix A.

Table 2: Traffic readiness classes

Traffic readiness class T0 T1 T2 T3 T4 Drying time in minutes NPD ≤ 1 ≤ 10 ≤ 20 ≤ 30
The drying time before traffic readiness must be determined for paints and cold plastic materials according to the classes listed in Table 2 and documented along with the climatic conditions (ambient temperature, temperature of test plate surface and relative humidity). In principle, for thermoplastic markings, the drying time falls under class T2 (≤10 min.). A marking is ready for traffic

if traffic does not cause any deformations to the marking material. In principle, the drying time must be determined as per DIN EN 13197, Appendix A.

Table 2: Traffic readiness classes

Traffic readiness class T0 T1 T2 T3 T4 Drying time in minutes NPD ≤ 1 ≤ 10 ≤ 20 ≤ 30

During application of a marking system, the quantity actually applied to the test plate must be determined for the material and all additives.

The application quantity of a marking material is expressed in coat thickness. The coat thickness is determined as per DIN EN 13197, Appendix C. In some cases, application volume may be determined by successively weighing the test plate after application of different components (materials, drop-on materials). The material thickness is then determined based on the actual application quantity. The application mixture for agglomerates is determined by weighing out the material quantity without drop-on materials.
The application quantity of a marking material is expressed in coat thickness. In principle, the coat thickness is determined as per DIN EN 13197, Appendix C. In some cases, application volume may be determined by successively weighing the test plate after application of different components (materials, drop-on materials). The material thickness is then determined based on the actual application quantity. The application mixture for agglomerates is determined by weighing out the material quantity without drop-on materials. In principle, for thin-coat systems, it is more practical to measure the wet film thickness with an earthed and calibrated measurement comb.

The results must be documented in the application log.

Sampling

For identification purposes, samples are taken from all marking materials, all components of multi-component materials and additives. Chemical/physical testing is conducted on the samples taken to identify the marking system.
For identification purposes, samples are taken from all marking materials, all components of multi-component materials and additives during application. Chemical/physical testing is conducted on the samples taken to identify the marking system.

Conditioning time


In principle, markings made from different marking materials are not tested at the same time. A distinction is drawn between: Paints (solvent-based paints, dispersions), cold plastic, aluminium-based films, other films, thermoplastics.

Table 3: Test conditions
Table 3: Test conditions

Number of test wheels 4 or 8 depending on the material being tested (see Section 4.1.1) Test tyre type Permitted standard tyres as per Section 4.1.1 New tyres for each test Tyre pressure 0.25 ± 0.02 MPa Wheel load 3000 ± 300 N Camber 0° up to a maximum deviation of ± 1° Skew Alternating +1° (±10‘) / -1° (±10‘) by wheel Speed 15 km/h ± 1 km/h in water 60 km/h ± 3 km/h Direction of rotation 50% in each direction Measurement interval 0; 0.01; 0.1; 0.2; 0.5; 1.0; 2.0; 3.0 and 4.0 x 106 Room temperature 5 °C to 10 °C

Table 4: Measurement cycles

Measurement cycle Wheel passes in the measurement cycle Wheel passes with water at the start Wheel passes, dry Wheel passes with water at the end *) Wheel passes until change of direction of rotation Wheel passes in total 1 10 000 1 750 6 500 1 750 5 000 10 000 2 90 000 - 88 250 1 750 25 000 100 000 3 100 000 - 96 500 3 500 25 000 200 000 4 300 000 - 290 000 10 000 25 000 500 000 5 500 000 - 490 000 10 000 25 000 1 000 000 6 1 000 000 - 980 000 20 000 25 000 2 000 000 7 1 000 000 - 980 000 20 000 25 000 3 000 000 8 1 000 000 - 980 000 20 000 25 000 4 000 000 *) For soaking, only water shall be used, without additives. When testing thermoplastic marking systems, the number of wheel passes with water is increased by 50 %. The number of wheel passes for dry testing is adjusted accordingly.
Table 4: Measurement cycles

Measurement cycle Wheel passes in the measurement cycle Wheel passes with water at the start Wheel passes, dry Wheel passes with water at the end *) Wheel passes until change of direction of rotation Wheel passes in total 1 10,000 1,750 6,500 1,750 5,000 10,000 2 90,000 - 88 250 1,750 25,000 100,000 3 100,000 - 96 500 3,500 25,000 200,000 4 300,000 - 290 000 10,000 25,000 500,000 5 500,000 - 490 000 10,000 25,000 1,000,000 6 1,000,000 - 980 000 20,000 25,000 2,000,000 7 1,000,000 - 980 000 20,000 25,000 3,000,000 8 1,000,000 - 980 000 20,000 25,000 4,000,000 *) For soaking, only water shall be used, without additives. When testing thermoplastic marking systems, the number of wheel passes with water is increased by 50 %. The number of wheel passes for dry testing is adjusted accordingly.

Measurements related to the system and the test conditions


The coefficient of retroreflected luminance RL (wet) is determined at a test plate slope of 2 %.

For wear, the ratio of the surfaces covered by marking in wheel passage condition to the same surfaces in non-wheel passage condition. The data sheet on agglomerate markings provides the precise detail for this (currently available in draft form).
For wear, the ratio of the surfaces covered by marking in wheel passage condition to the same surfaces in non-wheel passage condition. The revised data sheet on agglomerate markings provides the precise details for this (currently available in draft form).

The measurements are taken on all 3 test plates and the calculated average value is indicated as the result. The surface area covered by the measurements on all 3 test plates should be at least 400 cm².


For the tyre grip measurement, the new condition is measured before starting the wheel passes. The divisions of the measurement cycles are based on factors such as traffic class, and can be derived from Table 5. Measurement cycle 1 ends after 10 000 wheel passes.

Table 5: Measurement cycles by traffic class

Measurement cycle Traffic class Number of wheel passes 1 P0 < 50 000 2 P2 100 000 3 P3 200 000 4 P4 500 000 5 P5 1 000 000 6 P6 2 000 000 7 - 3 000 000 8 P7 4 000 000
Table 5: Measurement cycles by traffic class

Measurement cycle Traffic class Number of wheel passes 1 P0 < 50 000 2 P2 100 000 3 P3 200 000 4 P4 500 000 5 P5 1 000 000 6 P6 2 000 000 7 - 3 000 000 8 P7 4 000 000

Test assessment

The results of the suitability test are compiled in a measurement value table. If the minimum requirements of the ZTV M for the new and used conditions and the requirements of the TL M are met, a test certificate (see Appendix A) may be issued. For the minimum requirements under ZTV M, higher DIN EN 1436 classes were selected for photometric properties. If the minimum requirements under ZTV M and/or if the TL M requirements are not met, but the minimum requirements of DIN EN 1436 are in fact met, then a test confirmation (see Appendix A) may be issued.
The results of the suitability test are compiled in a measurement value table. If the minimum requirements of the ZTV M for the new and used conditions and the requirements of the TL M are met, a test certificate (see Appendix A) may be issued. For the minimum requirements under ZTV M, higher DIN EN 1436 classes were selected for photometric properties. If the minimum requirements under ZTV M and/or if the TL M requirements are not met, but the minimum requirements of DIN EN 1436 are in fact met, then a test confirmation (see Appendix A) may be issued. Unlike with a test certificate as per ZTV M, in cases of a confirmation as per DIN EN 1436 it is permitted to omit a performance level for one or more properties, if desired by the applicant.

For assessment of the tyre grip, deviating requirements for the RPA are specified based on cross-checks between tyre grip measurement values on test bays and the RPA. Five points are added to an SRT value determined during the test on the RPA so the lowest class S1 is already deemed to be met at an SRT value of 40. However this provision does not apply to tyre grip measurements under new conditions before the start of the test runs. This requires an SRT value of 45.


15 % for day visibility

15 % for night visibility
15% for night visibility after 100 000 wheel passes

± 5 SRT units for tyre grip


General information

Prototype tests serve for quality assurance and checking marking materials for prohibited hazardous substances. At the same time, prototype testing also serves as a basis for future sample equivalence tests. DIN EN 1871 sets out the chemical/physical requirements on marking materials as components of marking systems. The requirements for drop-on materials and premix glass beads are based on DIN EN 1423 and DIN EN 1424. Standards DIN EN 12802 and DIN EN 1790 detail the tests for identification of marking materials and films.
Prototype tests serve for quality assurance and checking marking materials for prohibited hazardous substances. At the same time, prototype testing also serves as a basis for future sample equivalence

tests. DIN EN 1871 sets out the chemical/physical requirements on marking materials as components of marking systems. The requirements for drop-on materials and premix glass beads are based on DIN EN 1423 and DIN EN 1424. Standards DIN EN 12802 and DIN EN 1790 detail the tests for identification of marking materials and films.

Table 7 gives the prototype analyses to be conducted for suitability testing on marking systems. Section 5.3 describes the necessary deviations from the existing procedure.

Table 7 Overview of the standard test procedure

Parameter Solvent-based paints (primers) Dispersions Reactive materials Thermoplastic materials Films Reference Density x x X ISO 2811-1 Volatile fraction x x DIN EN 12802 Binder fraction x x X x DIN EN 12802 Titanium dioxide content x x X x DIN EN 12802 Premix solids fraction X x DIN EN 12802 Analysis of drop-on materials x x X x DIN EN 1423, TP M Analysis of lead and cadmium x 1) x 1) x 1) x 1) x 1) ISO 11466 Incineration residue x x X x DIN EN 12802 Infrared spectrum of the binder x x X x DIN EN 128022) Infrared spectrum of pigments and fillers x x X x DIN EN 12802 Determination of VOCs/monomers/oligomers x x X DIN EN 12802 Analysis of adhesive layer x DIN EN 1790 Thermogram x DIN EN 1790 Image analysis x TP M Wilhelmi softening point x DIN EN 1871 Penetration test x DIN EN 1871
Table 7. Overview of standard test procedures

Parameter Solvent-based paints (primers) Dispersions Reactive materials Thermoplastic materials Films Reference Density X x X ISO 2811-1 Volatile fraction X x DIN EN 12802 Binder fraction X x X x DIN EN 12802 Titanium dioxide content X x X x DIN EN 12802 Premix solids fraction X x DIN EN 12802 Analysis of drop-on materials X x X x DIN EN 1423, TP M Analysis of lead and cadmium x 1) x 1) x 1) x 1) x 1) ISO 11466 Incineration residue X x X x DIN EN 12802 Infrared spectrum of the binder X x X x DIN EN 128022) Infrared spectrum of pigments and fillers X x X x DIN EN 12802 Determination of VOCs/monomers/oligomers X x X DIN EN 12802 Analysis of adhesive layer x DIN EN 1790 Thermogram x DIN EN 1790 Image analysis x TP M Wilhelmi softening point x DIN EN 1871 Penetration test x DIN EN 1871

As needed for materials for temporary markings


Within the framework of the suitability test, the applicant confirms in writing that the materials and additives provided for application are representative of production. The applicant is responsible for ensuring that the sample quantities (see 4.2.3) submitted for prototype testing are adequate.

Once filled, the sampling vessels must be closed and protected from tampering with a suitable seal. Some examples of suitable sampling vessels would be 1l tin cans or airtight, screwable plastic vessels made from polyethylene or polypropylene. Solvent losses can be prevented by filling the sample vessel as full as possible and swirling it once after sealing. Water-based marking materials require the use of airtight plastic vessels or lined tin cans with press-in lids.
Once filled, the sampling vessels must be closed and protected from tampering with a suitable seal. Some examples of suitable sampling vessels would be 1l tin cans or airtight, screwable plastic vessels made from polyethylene or polypropylene. Solvent losses can be prevented by filling the sample

vessel as full as possible and swirling it once after sealing. Water-based marking materials require the use of airtight plastic vessels or lined tin cans with press-in lids.

Samples must be clearly labelled.

Prototype testing of non-preformed marking systems

Prototype testing determines and documents the characteristic properties of a marking system, in order to enable identification according to the ZTV M in a future verification test. The prototype procedures are described below.
The applicant uses a suitability testing application to submit the characteristic properties of a marking system and uses prototype testing to determine, verify and document these, in order to enable identification according to the ZTV M in a future verification test. The prototype testing procedures are described below.

Determination of organic and inorganic fractions

The amount of volatile components in marking paints and primers is determined as per DIN EN 12802 by weighing the residue contained in the circulation air drying chamber after three hours of heating at 105°C. This residue is reused to measure the amount of binders and the amount of inorganic components. After four hours of thermal treatment at 550 °C in a muffle furnace, organic binders will be fully decomposed. The remaining residue is to the inorganic fraction. The percentages by weight are determined by weighing before and after thermal treatment. The inorganic residue obtained is used to identify pigments and fillers and determine the titanium dioxide content.
In principle, the amount of volatile components in marking paints and primers is determined as per DIN EN 12802 by weighing the residue contained in the circulation air drying chamber after three hours of heating at 105°C. This residue is reused to measure the amount of binders and the amount of inorganic components. After four hours of thermal treatment at 4450°C in a muffle furnace, organic binders will be fully decomposed. The remaining residue is to the inorganic fraction. The percentages by weight are determined by weighing before and after thermal treatment. The inorganic residue obtained is used to identify pigments and fillers and determine the titanium dioxide content.

Determination of volatile organic compounds and monomers/oligomers