SIST EN 12802:2011
(Main)Road marking materials - Laboratory methods and identification
Road marking materials - Laboratory methods and identification
This document specifies laboratory methods for the identification of road marking materials used in horizontal signalization. It is not necessary, unless required, to perform all of the tests described.
Straßenmarkierungsmaterialien - Laborverfahren für die Identifikation
Dieses Dokument beschreibt Laborverfahren für die Identifizierung von Straßenmarkierungsmaterialien, die für horizontale Leiteinrichtungen eingesetzt werden. Sofern es nicht gefordert wird, ist es nicht notwendig, alle beschriebenen Prüfungen durchzuführen.
Produits de marquage routier - Méthodes de laboratoire pour identification
La présente Norme européenne décrit les méthodes de laboratoire permettant d’identifier les produits de marquage routier utilisés pour la signalisation horizontale. Il n’est pas nécessaire, à moins d’une exigence particulière, de réaliser tous les essais décrits.
Materiali za označevanje vozišča - Laboratorijske metode za identifikacijo
Ta dokument opredeljuje laboratorijske metode za identifikacijo materialov za označevanje vozišča, ki se uporabljajo pri horizontalni signalizaciji. Vseh opisanih preskusov ni treba opraviti, razen če se ne zahteva drugače.
General Information
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Standards Content (Sample)
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.LILNDFLMRStraßenmarkierungsmaterialien - Laborverfahren für die IdentifikationProduits de marquage routier - Méthodes de laboratoire pour identificationRoad marking materials - Laboratory methods and identification93.080.20Materiali za gradnjo cestRoad construction materialsICS:Ta slovenski standard je istoveten z:EN 12802:2011SIST EN 12802:2011en,de01-oktober-2011SIST EN 12802:2011SLOVENSKI
STANDARDSIST EN 12802:20021DGRPHãþD
SIST EN 12802:2011
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 12802
June 2011 ICS 93.080.20 Supersedes EN 12802:2000English Version
Road marking materials - Laboratory methods for identification Produits de marquage routier - Méthodes de laboratoire pour identification
Straßenmarkierungsmaterialien - Laborverfahren für die Identifikation This European Standard was approved by CEN on 22 April 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 and United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
Management Centre:
Avenue Marnix 17,
B-1000 Brussels © 2011 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 12802:2011: ESIST EN 12802:2011
EN 12802:2011 (E) 2 Contents Foreword . 31Scope . 42Normative references . 43Terms and definitions . 44Sampling . 55Test methods . 56Test Report . 9Annex A (normative)
Paint – Test method for the determination of the solids content . 10Annex B (normative)
Paint, thermoplastics and cold plastics – Test method for the determination and identification of organic constituents . 12Annex C (normative)
Paint, thermoplastic and cold plastic – Test method for the determination and identification of inorganic constituents . 16Annex D (normative)
Paint, thermoplastics and cold plastics – Test method for the determination of the titanium (IV) dioxide content in the inorganic compound . 18Annex E (normative)
Paint, thermoplastics and cold plastics – Test method for the determination of the glass bead content . 21Annex F (normative)
Paint and cold plastics – Test method for the determination and identification of solvents . 23Annex G (normative)
Paint – Test method for the determination of viscosity (Krebs-Stormer method) . 26Annex H (normative)
Paint, thermoplastics and cold plastics – Test method for the determination of the ash content . 31Bibliography . 33 SIST EN 12802:2011
EN 12802:2011 (E) 3 Foreword This document (EN 12802:2011) 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 December 2011, and conflicting national standards shall be withdrawn at the latest by December 2011. 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 12802:2000. 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 and the United Kingdom. The Annexes A to H of this European Standard are normative. This European Standard is one of a package of inter-related European Standards with a common date of withdrawal (dow) fixed on December 2011 (including the request of an extension fo
the co-existence period): EN 1790, Road marking materials
Preformed road markings, EN 1824, Road marking materials
Road trials, EN 1871, Road marking materials
Paint, thermoplastic and cold plastic materials Specifications, EN 12802, Road marking materials
Laboratory methods for identification, EN 13197, Road marking materials
Wear simulator Turntable, EN 13212, Road marking materials
Requirements for factory production control, EN 13459, Road marking materials
Sampling and testing. SIST EN 12802:2011
EN 12802:2011 (E) 4 1 Scope
This document specifies laboratory methods for the identification of road marking materials used in horizontal signalization. It is not necessary, unless required, to perform all of the tests described. 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 1423, Road marking materials
Drop on materials
Glass beads, antiskid aggregates and mixtures of the two EN 1424, Road marking materials
Premix glass beads EN 1790, Road marking materials
Preformed road markings EN 13459, Road marking materials
Sampling and testing EN ISO 11890-2, Paints and varnishes
Determination of volatile organic compound (VOC) content
Part 2: Gas-chromatographic method (ISO 11890-2:2006) EN ISO 15528, Paints, varnishes and raw materials for paints and varnishes
Sampling (ISO 15528:2000) ISO 5725-2, Accuracy (trueness and precision) of measurement methods and results
Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement method 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 paints liquid product containing binders, pigments, extenders, solvents and additives
NOTE It can be supplied in single or multi-component systems. When applied it produces a cohesive film by the process of solvent evaporation, or solvent evaporation and a chemical reaction. 3.2 cold plastics viscous products supplied in two or multi-component forms (at least one main component and a hardener system) and free from solvents NOTE The cohesive film is formed after mixing of all components only by a chemical reaction. Following the reaction, the liquid becomes a solid. 3.3
thermoplastics solvent-free marking substance supplied in block, granular or powder forms NOTE It is heated to a molten state and then applied. It forms a cohesive film by cooling. SIST EN 12802:2011
EN 12802:2011 (E) 5 4 Sampling Samples representative of each component of the material shall be taken from storage, or prior to application, in accordance with EN 13459. Smaller representative samples, of sufficient quantity to carry out all the tests required, shall be taken from the larger samples. For paints and cold plastics approximately 1 l of the basic component shall be taken. In the case of thermoplastic in powder form, sufficient quantity shall be taken in accordance with EN 13459 so that it can be melted in a metal container and mixed to a homogeneous mass. After cooling and casting into solid sheets or blocks, representative samples of approximately 1 kg of homogeneous solid material shall be taken for testing. 5 Test methods 5.1 General The standard test methods are listed in 5.2 to 5.4. Alternative quantitative analytical test methods may be used providing that: the resulting values are comparable to those obtained using the standard methods; and, the repeatability of the alternative methods, determined in accordance with ISO 5725-2, can be shown to be not less than that of the methods given in this standard. 5.2 Paint 5.2.1 Density The density of the paint shall be determined using, either the method laid down in EN ISO 2811-1, or an alternative method complying with 5.1. 5.2.2 Solids content The solids content of the paint, expressed as a percentage, shall be determined using, either the method described in Annex A, or an alternative method complying with 5.1. 5.2.3 Organic content and identification The type of organic materials, and the content expressed as a percentage, of the paint shall be determined using, either the method described in Annex B, or an alternative method complying with 5.1. 5.2.4 Inorganic content and identification The type of inorganic materials, and the content expressed as a percentage, of the paint shall be determined using, either the method described in Annex C, or an alternative method complying with 5.1. 5.2.5 Titanium dioxide content The titanium dioxide content of the inorganic compound of the paint, expressed as a percentage, shall be determined, either by the method described in Annex D, or an alternative method complying with 5.1. 5.2.6 Glass bead content The glass bead content of the paint, expressed as a percentage, shall be determined, either as described in Annex E, or an alternative method complying with 5.1.
SIST EN 12802:2011
EN 12802:2011 (E) 6 5.2.7 Solvent content and identification The type of solvent, and the content expressed as a percentage, of the paint shall be determined using, either the method described in Annex F, or an alternative method complying with 5.1. 5.2.8 Viscosity The viscosity of the paint shall be determined using, either the method described in Annex G, or an alternative method complying with 5.1. 5.2.9 Ash content
The ash content of the paint shall be determined using, either the method described in Annex H, or an alternative method complying with 5.1. 5.3 Thermoplastics 5.3.1 Density The density of the thermoplastics shall be determined using, either the method laid down in EN ISO 2811-2, or an alternative method complying with 5.1. 5.3.2 Organic content and identification The type of organic materials, and the content expressed as a percentage, of the thermoplastics shall be determined using, either the method described in Annex B, or an alternative method complying with 5.1. 5.3.3 Inorganic content and identification The type of inorganic materials, and the content expressed as a percentage, of the thermoplastics shall be determined using, either the method described in Annex C, or an alternative method complying with 5.1. 5.3.4 Titanium dioxide content The titanium dioxide content of the inorganic compound of the thermoplastics, expressed as a percentage, shall be determined, either by the method described in Annex D, or an alternative method complying with 5.1. 5.3.5 Glass bead content The glass bead content of the thermoplastics, expressed as a percentage, shall be determined, either as described in Annex E, or an alternative method complying with 5.1.
5.3.6 Ash content
The ash content of the thermoplastics shall be determined using, either the method described in Annex H, or an alternative method complying with 5.1. 5.4 Cold plastics 5.4.1 Density The density of the cold plastics shall be determined using, either the method laid down in EN ISO 2811-2, or an alternative method complying with 5.1. SIST EN 12802:2011
EN 12802:2011 (E) 7 5.4.2 Organic content and identification The type of organic materials, and the content expressed as a percentage, of the cold plastics shall be determined using, either the method described in Annex B, or an alternative method complying with 5.1. 5.4.3 Inorganic content and identification The type of inorganic materials, and the content expressed as a percentage, of the cold plastics shall be determined using, either the method described in Annex C, or an alternative method complying with 5.1. 5.4.4 Titanium dioxide content The titanium dioxide content of the inorganic compound of the cold plastics, expressed as a percentage, shall be determined, either by the method described in Annex D, or an alternative method complying with 5.1. 5.4.5 Glass bead content The glass bead content of the cold plastics, expressed as a percentage, shall be determined, either as described in Annex E, or an alternative method complying with 5.1.
5.4.6 Solvent content and identification The type of solvent, and the content expressed as a percentage, of the cold plastics shall be determined using, either the method described in Annex F, or an alternative method complying with 5.1. 5.4.7 Viscosity The viscosity of the cold plastics shall be determined using, either the method laid down in EN ISO 2555 with a Type A viscosimeter, or an alternative method complying with 5.1. 5.4.8 Ash content
The ash content of the cold plastics shall be determined using, either the method described in Annex H, or an alternative method complying with 5.1. 5.5 Preformed road markings The identification methods for preformed road markings are laid down in EN 1790. 5.6 Premix glass beads 5.6.1 Granulometry The granulometry of the glass beads shall be determined using the method laid down in EN 1424. 5.6.2 Refractive index The refractive index class of the glass beads shall be determined using the method laid down in EN 1424. 5.6.3 Resistance to water, hydrochloric acid, calcium chloride and sodium sulphide The glass beads shall not develop any surface haze or dulling when in contact with any of the following: water, hydrochloric acid, calcium chloride and sodium sulphide, using the method laid down in EN 1423. SIST EN 12802:2011
EN 12802:2011 (E) 8 5.6.4 Defective beads The percentage of defective glass beads shall be determined using the method laid down in EN 1424. 5.6.5 Surface Treatment The surface treatment of the glass beads shall be determined using the method laid down in EN 1424. 5.7 Drop on materials 5.7.1 Drop on glass beads 5.7.1.1 Granulometry The granulometry of the glass beads shall be determined using the method laid down in EN 1423. 5.7.1.2 Refractive index The refractive index class of the glass beads shall be determined using the method laid down in EN 1423. 5.7.1.3 Resistance to water, hydrochloric acid, calcium chloride and sodium sulphide The glass beads shall not develop any surface haze or dulling when in contact with any of the following: water, hydrochloric acid, calcium chloride and sodium sulphide, using the method laid down in EN 1423. 5.7.1.4 Defective beads The percentage of defective glass beads shall be determined using the method laid down in EN 1423. 5.7.1.5 Surface Treatment The surface treatment of the glass beads shall be determined using the methods laid down in EN 1423. 5.7.2 Drop on antiskid aggregates 5.7.2.1 Friability index The friability index of the antiskid aggregates shall be determined using the method laid down in EN 1423. 5.7.2.2 Granulometry The granulometry of the antiskid aggregates shall be determined using the method laid down in EN 1423. 5.7.2.3 Colour co-ordinates and luminance factor If the antiskid aggregate is not transparent, the chromaticity co-ordinates and the luminance factor shall be determined using the method laid down in EN 1423. 5.7.3 Mixture of glass beads and antiskid aggregates In a mixture of glass beads and antiskid aggregates the glass beads shall conform to EN 1423 and the antiskid aggregates shall conform to EN 1423. The tests on the glass beads and the antiskid aggregates to be incorporated in mixtures shall be conducted separately before mixing. SIST EN 12802:2011
EN 12802:2011 (E) 9 5.8 Tolerances Tolerances are as shown in Table 1. For the initial testing of a material, tolerances apply to the manufacturers declared values for the properties tested and the initial test results shall be within the tolerances in Table 1. When the values fall inside the tolerances then the values initially declared by the manufacturer are considered to be verified. When values fall outside of the tolerances there are four possibilities: the manufacturer can decide that the test be terminated; by agreement between the participants the test can be repeated with the same samples; by agreement between the participants the test can be repeated with new samples; by agreement between the participants the manufacturer can submit revised declared values; For re-identification of a material, it may not be necessary to test all of the values. Reference values for the properties tested shall be the values declared by the manufacturer. Table 1 — Tolerances
ParameterMaximum relative deviation Maximum absolute deviation Solids content - ± 2 Density - - - Paint: ± 0,04 g/cm³ Cold plastic: ± 0,06 g/cm³ Thermoplastic: ± 0,1 g/cm³ Organic constituents 10 % ± 2 Calcium Carbonate
± 3 Inorganic constituents - ± 3 Titanium dioxide
For TiO2 concentrations ≥ 10 % Tolerance = 10 % For TiO2 concentrations ≤ 10 % Tolerance = ± 1 Glass beads* 20 % ± 5 Solvent content
± 3 Viscosity Cold plastic: 20 %
Paint: ± 10 units Ash Content - ± 3 * Experimental values which are only applicable if the glass bead content is ≥ 10%. It is not possible to set tolerances if the percentage of glass beads is less than 10 %.NOTE When assessing the identity of two infrared spectra it has to be checked if all absorptions-/transmission peaks are present or there are additional occurrences which are significantly different from the baseline to stand out. The relative height levels between the peaks must not change significantly. 6 Test Report At the end of the tests, the test report shall be made available. The test report shall include at least: a reference to this standard and to the test method (Annex A to Annex H); the critical testing conditions; and the expression of the results (as specified in the corresponding test method) and the related uncertainty (if applicable). SIST EN 12802:2011
EN 12802:2011 (E) 10 Annex A (normative)
Paint – Test method for the determination of the solids content A.1 Principle The volatile constituents of the paint are evaporated at 105 °C. The residual solids are weighed and the solids content calculated.
A.2 Apparatus a) Cooling equipment, refrigerator or water bath with thermostat at approximately + 10 °C; b) porcelain dishes with a diameter of approximately 40 mm an a high of 20 mm to 30 mm; c) analytical balance, with an accuracy of 0,001 g, with zero point correction; d) warming cupboard, with forced fresh air ventilation and flame-proof interior capable of being heated to
105 °C ± 2 °C; e) desiccator, with drying agent, e.g. silica gel. A.3 Reagents Thinner consisting of a suitable solvent / thinner as recommended by the manufacturer. A.4 Procedure A.4.1 Carry out two determinations. A.4.2 Mark porcelain plates with numbers. Record the mass of the empty plates (L) to the nearest 0,001 g. Place approximately 2 g of the paint, pre-cooled to 10 °C and homogenized, in the plate with a spoon. Weigh to the nearest 0,001 g (mass M1).
A.4.3 Place the plates containing the sample in a warming cupboard at a temperature of 105 °C ± 2 °C and store there for at least 3 h or until constant mass is reached. Constant mass is reached when, after the sample has been in the warming cupboard for a further 1,5 h, the mass loss is less than 0,2 % of the initial mass. Cool the plate to room temperature in the desiccator, and weigh to the nearest 0,001 g. SIST EN 12802:2011
EN 12802:2011 (E) 11 A.5 Test result The percentage solids content of the paint by mass, S, shall be calculated according to the following equation: ()SSLMLMS−−=12100 (A.1) where M1 is the initial mass of paint together with the empty plate, in grams; M2 is the final mass of solid together with the plate, in grams; L is the mass of the empty plate, in grams. If the results of the individual determinations differ by more than 0,5 % by mass the procedure shall be repeated. The mean of the two individual results shall be calculated and the solids content given rounded to the nearest 0,1 % by mass.
SIST EN 12802:2011
EN 12802:2011 (E) 12 Annex B (normative)
Paint, thermoplastics and cold plastics –
Test method for the determination and identification of organic constituents B.1 Principle Separation of the binder, insoluble organic and inorganic constituents from the specimen by solvent extraction, centrifuging and combustion. The binder type of paints and thermoplastics is identified by IR spectra using a potassium bromide (KBr) pellet or window.
The binder type of cold plastics is identified using EN ISO 11890-2, Paints and varnishes
Determination of volatile organic compound (VOC)
Part 2: Gaschromatographic method (ISO 11890-2:2006). The inorganic constituents are kept for further IR examination (Annex C), determination of titanium dioxide (Annex D) and the glass bead content (Annex E). B.2 Apparatus a) centrifuge, high-speed, min 10 000g1);
b) centrifuge bowls, steel bowls or glass tubes, each with a capacity of 80 cm3; c) spatula; d) warming cupboard, with forced ventilation, capable of being heated to 105 °C ± 10 °C; e) rotary evaporator; f) glass flask, with a capacity of 500 ml, with ground glass neck; g) infrared spectrometer, automatically recording FTIR spectrometer, range 4000 cm-1 to 400 cm-1 with an optical resolving power better than 5 cm-1 throughout the spectral range using an ordinate with a scale of 0 % to 100 % transmission. h) analytical balance, with an accuracy of 0,001 g, with zero point correction; i) two erlenmeyer flasks of heat resistant glass, 250 ml or 300 ml capacity; j) electric muffle furnace, adjustable to 450 °C ± 25 °C; k) desiccator, with drying agent, e.g. silica gel; l) ultrasonic dissolver or similar device.
1) g equals 9,81 m x s-2. SIST EN 12802:2011
EN 12802:2011 (E) 13 B.3 Solvents being used The following solvents shall be used unless otherwise stipulated by the supplier: for paints containing organic solvents: mixture of three parts toluene p.a. to one part acetone p.a. by volume; for waterborne paints: tetrahydrofurane; for thermoplastics: mixture of three parts toluene p.a. to one part acetone p.a. by volume or methylethylketone;
for cold plastics: ethyl acetate; acetone. B.4 Procedure B.4.1 Separation of binder Weigh the centrifuge bowls to the nearest 0,01 g (W1). Weigh a portion of approximately at least 10 g to the nearest 0,01 g together with the bowl (W2).
Place a portion of the marking material, carefully homogenized, in a centrifuge tube. Add approximately 25 ml of an appropriate solvent (see B.3). Seal the tube with a stopper and, only for thermoplastic, allow to stand overnight. After standing, stir the contents of the tube thoroughly with a spatula and centrifuge the mixture at 10 000g to 15 000g for 20 min. Decant the liquid phase into the glass flask. Thin the solid phase with a further 25 ml of solvent, stir again with the spatula, rinse and centrifuge again. Repeat the procedure three times or until the liquid supernatant is of clear colour. Use a highly volatile solvent the third time (such as acetone). Expose the centrifuge bowls containing the solid phase to the air for 5 min and dry in the warming cupboard for approximately 2 h.
Cool down the tubes in a desiccator and reweigh them to the nearest 0,01 g (W3). For dispersions do the extraction with tetrahydrofurane and centrifuge at a low speed of about 1000g, as high speeds can throw out high molecular components of the binder. B.4.2 Preparation of spectra Concentrate the solutions obtained in B.4.1 down to about 20 ml in the 500 ml glass flask in a rotary evaporator.
For recording the IR spectrum of the binder of a road marking material, use the binder solutions obtained in B.4.2. Coat the cuvette window or the potassium bromide (KBr) pellet (both referred to as 'pellet' below) evenly with a specimen of the solution. Dip a previously prepared pellet into the liquid obtained from the appropriate extraction and coat it evenly with a specimen of the solution. As the solvent evaporates, examine the pellet to make sure that the film formed on it is uniform and homogeneous. There shall be no inhomogeneity or separation. In order to remove the solvent completely, store the coated pellet in a warming cupboard at 60 °C ± 2 °C until no bands of solvent are identifiable. Place the pellet in the sample holder of the IR spectrometer and record the IR spectrum. Keep the tracing as a reference. SIST EN 12802:2011
EN 12802:2011 (E) 14 If the intensity of the spectrum is too weak, dip the pellet into the solution a second time, dry it and test again. Repeat the procedure until a spectrum is produced in which the strongest bands have an intensity of 5 % to 15 % transmittance. If the intensity is to strong, thin with an appropriate solvent. Record the spectrum in such a way that the strongest absorptions have a transparency between 5 % and 15 %. The film thickness suitable for evaluation of the spectra shall be determined empirically. B.4.3 Processing of the solids The solids from the separation may contain insoluble organic compounds. They are ashed at 450 °C ± 25 °C in a muffle furnace and the loss in mass determined. The ash residue is used for the determination of the titanium dioxide in Annex D (initial mass M4) and inorganic constituents in Annex C. Carry out two determinations.
Weight a empty flask to the nearest 0.001g (W4), Take the residue of the centrifuge tube an place it in the flask directly in the muffle furnace afterwards and raise the temperature gradually to 450 °C ± 25 °C. Keep the flask in the furnace for at least 2 h or until constant mass is obtained. Remove the flask containing the residues, cool in a desiccator and reweigh (W5). NOTE The determination should be carried out in a properly functioning fume hood. B.4.4 Processing of the liquid
Weight an empty capsule to the nearest 0.001 g (W6). V1 is the total volume of the liquid part obtained in B 4.1. Take a small part of the different liquid phase collect in part B 4.1 (V2) In order to have at the end between 1 and 3 grams of binder and put in the capsule on a hotplate at 60°C under ventilation. Continue the evaporation until constant mass is obtained (W7). Be careful to cool the capsule before every weighting. B.5 Test results The binder content by mass (B), shall be determined using the following equation for thermoplastics cold plastic and paints. 100867∗−=WWWB (B.1) where ()12128VVWWW×−=
(B.2) SIST EN 12802:2011
EN 12802:2011 (E) 15 The percentage binder + solvent content by mass, B+SC, could be determined (for information only) using the following equation for thermoplastics and reactive materials: ()1232100WWWWSCB−−=+ (B.3) where W1 is the mass of the empty centrifuge bowl in grams; W2 is the mass of the bowl together with the sample in grams; W3 is the mass of the bowl together with the residues in grams. The percentage of inorganic compounds content by mass, I, shall be determined using the following equation: ()1245100WWWWI−−= (B.4) The percentage binder content by mass, B, could be also determined using the following equation for paints and cold plastics: ()ICISB+−= (B.5)
“S” is the solid content obtained in Annex A If the results of the individual determinations of the binder or inorganic content differ by more than 0,5 % by mass from the mean, repeat the procedure. The mean of the two individual results shall be calculated and the binder content given rounded to the nearest 0,1 % by mass. The percentage of insoluble organic compounds (IC) by mass is given by the difference: ()SCBIIC++−=100 (B.6)
SIST EN 12802:2011
EN 12802:2011 (E) 16 Annex C (normative)
Paint, therm
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