1、February 2015 Translation by DIN-Sprachendienst.English price group 14No part of this translation may be reproduced without prior permission ofDIN Deutsches Institut fr Normung e. V., Berlin. Beuth Verlag GmbH, 10772 Berlin, Germany,has the exclusive right of sale for German Standards (DIN-Normen).I
2、CS 87.040!%?cA“2286430www.din.deDDIN EN ISO 2813Paints and varnishes Determination of gloss value at 20, 60 and 85 (ISO 2813:2014);English version EN ISO 2813:2014,English translation of DIN EN ISO 2813:2015-02Beschichtungsstoffe Bestimmung des Glanzwertes unter 20, 60 und 85 (ISO 2813:2014);Englisc
3、he Fassung EN ISO 2813:2014,Englische bersetzung von DIN EN ISO 2813:2015-02Peintures et vernis Dtermination de lindice de brillance 20, 60 et 85 (ISO 2813:2014);Version anglaise EN ISO 2813:2014,Traduction anglaise de DIN EN ISO 2813:2015-02SupersedesDIN EN ISO 2813:1999-06 andDIN 67530:1982-01www.
4、beuth.deDocument comprises 30 pagesIn case of doubt, the German-language original shall be considered authoritative.01.15 DIN EN ISO 2813:2015-02 2 A comma is used as the decimal marker. National foreword This document (EN ISO 2813:2014) has been prepared by Technical Committee ISO/TC 35 “Paints and
5、 varnishes”, Subcommittee SC 9 “General test methods for paints and varnishes” (Secretariat: BSI, United Kingdom) in collaboration with Technical Committee CEN/TC 139 “Paints and varnishes” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was the DIN-Normenausschu
6、ss Beschichtungsstoffe und Beschichtungen (DIN Standards Committee Coatings and Coating Materials), Working Committee NA 002-00-07 AA Allgemeine Prfverfahren fr Beschichtungsstoffe und Beschichtungen. The DIN Standards corresponding to the International Standards referred to in this document are as
7、follows: ISO 1514 DIN EN ISO 1514 ISO 2808 DIN EN ISO 2808 ISO 4618:2014 DIN EN ISO 4618:2015-01 ISO 5725-2 DIN ISO 5725-2 ISO 7668 DIN EN ISO 7668 ISO 8254-1 DIN EN ISO 8254-1 ISO 8254-2 DIN EN ISO 8254-2 ISO/TR 22971 DIN ISO/TR 22971 (DIN SPEC 55318) ISO/IEC GUIDE 99 1 Amendments This standard dif
8、fers from DIN 67530:1982-01 and DIN EN ISO 2813:1999-06 as follows: a) the contents of both standards have been combined in one standard; b) the scope has been extended to include gloss measurement of metallic coatings; c) the term “specular gloss” has been replaced by “gloss”; d) the gloss value is
9、 indicated in gloss units (GU); e) a new annex (Annex A) concerning possible sources of error has been added; f) a new annex (Annex B) concerning calibration standards has been added; g) a new annex (Annex C) concerning gloss calculation of primary reference standards has been added; h) a new annex
10、(Annex D) concerning details on precision has been added; i) the precision data are the results of a large interlaboratory test. Previous editions DIN 67530: 1972-11, 1982-01 DIN EN ISO 2813: 1999-06 DIN EN ISO 2813:2015-02 3 National Annex NA (informative) Bibliography DIN EN ISO 1514, Paints and v
11、arnishes Standard panels for testing DIN EN ISO 2808, Paints and varnishes Determination of film thickness DIN EN ISO 4618:2015-01, Paints and varnishes Terms and definitions DIN EN ISO 7668, Anodizing of aluminium and its alloys Measurement of specular reflectance and specular gloss of anodic oxida
12、tion coatings at angles of 20 degrees, 45 degrees, 60 degrees or 85 degrees DIN EN ISO 8254-1, Paper and board Measurement of specular gloss Part 1: 75 degree gloss with a converging beam, TAPPI method DIN EN ISO 8254-2, Paper and board Measurement of specular gloss Part 2: 75 gloss with a parallel
13、beam, DIN method DIN 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 DIN ISO/TR 22971 (DIN SPEC 55318), Accuracy (trueness and precision) of measurement m
14、ethods and results Practical guidance for the use of ISO 5725-2:1994 in designing, implementing and statistically analysing interlaboratory repeatability and reproducibility results 1 International vocabulary of metrology Basic and general concepts and associated terms (VIM), Bilingual German-Englis
15、h version ISO/IEC-Guide 99:2007, Beuth Wissen, 3. Auflage 2012, Beuth Verlag GmbH, Berlin DIN EN ISO 2813:2015-02 4 This page is intentionally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 2813 October 2014 ICS 87.040 Supersedes EN ISO 2813:1999English Version Paints and varnishes -
16、 Determination of gloss value at 20 degrees, 60 degrees and 85 degrees (ISO 2813:2014) Peintures et vernis - Dtermination de lindice de brillance 20 degrs, 60 degrs et 85 degrs (ISO 2813:2014) Beschichtungsstoffe - Bestimmung des Glanzwertes unter 20, 60 und 85 (ISO 2813:2014) This European Standard
17、 was approved by CEN on 24 August 2014. 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
18、 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
19、language and notified to the CEN-CENELEC Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Gr
20、eece, 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 COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUN
21、G CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2014 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 2813:2014 EContents PageForeword 31 Scope . 42 Normative references 43 Terms and definitions . 44 Principle
22、 55 Basic principles of the gloss measurement 56 Apparatus and calibration equipment 76.1 Glossmeter 76.2 Measurement standards (certified reference material, working measurementstandards) 107 Test panels . 117.1 Substrate . 117.2 Preparation and coating . 117.3 Drying and conditioning 117.4 Thickne
23、ss of coating 118 Calibration and adjustment of the glossmeter . 118.1 Preparation of the apparatus . 118.2 Zero point check . 118.3 Calibration and adjustment 129 Procedure 129.1 Selection of geometry . 129.2 Gloss measurement 1210 Precision 1310.1 General 1310.2 Repeatability limit . 1310.3 Reprod
24、ucibility limit . 1311 Test report 13Annex A (normative) Possible sources of error .15Annex B (normative) Calibration standards .18Annex C (informative) Gloss calculation of primary reference standards .20Annex D (informative) Details on precision .24Bibliography .26DIN EN ISO 2813:2015-02 EN ISO 28
25、13:2014 (E) 2.DIN EN ISO 2813:2015-02 EN ISO 2813:2014 (E) 3Foreword This document (EN ISO 2813:2014) has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes” in collaboration with Technical Committee CEN/TC 139 “Paints and varnishes” the secretariat of which is held by DIN. This Eu
26、ropean Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by April 2015, and conflicting national standards shall be withdrawn at the latest by April 2015. Attention is drawn to the possibility that some of the eleme
27、nts 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 ISO 2813:1999. According to the CEN-CENELEC Internal Regulations, the national standards organizations of the followin
28、g countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norw
29、ay, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. Endorsement notice The text of ISO 2813:2014 has been approved by CEN as EN ISO 2813:2014 without any modification. 1 ScopeThis International Standard specifies a method for determining the
30、gloss of coatings using the three geometries of 20, 60 or 85. The method is suitable for the gloss measurement of non-textured coatings on plane, opaque substrates.NOTE On test specimens different from these mentioned above, comparative gloss measurements are possible. However, it is not ensured tha
31、t the obtained gloss values correspond to the visual gloss perception (see Annex A).2 Normative referencesThe following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. For dated references, only the edition cited applies. For und
32、ated references, the latest edition of the referenced document (including any amendments) applies.ISO 1514, Paints and varnishes Standard panels for testingISO 2808, Paints and varnishes Determination of film thicknessISO 4618:2014, Paints and varnishes Terms and definitions3 Terms and definitionsFo
33、r the purposes of this document, the terms and definitions given in ISO 4618 and the following apply.3.1glossoptical property of a surface, characterized by its ability to reflect light specularlyNote 1 to entry: Examples of degrees of gloss are high gloss, gloss, silk gloss, semigloss, satin, matt,
34、 and dead matt.SOURCE: ISO 4618:2014, 2.1323.2geometryidentification of a method of gloss measurement using a specified angle with assigned apertures3.3gloss valueratio multiplied by 100 of the luminous flux reflected from a specimen to that reflected by a glass surface with a refractive index of 1,
35、567 at a wavelength of 587,6 nm in specular direction for a specified reflection angle and specified aperture angles of light source and receptorNote 1 to entry: The gloss value is indicated in gloss units (GU). It is not permitted to interpret and express gloss values as “% reflection”.Note 2 to en
36、try: Gloss values measured on coatings are expressed rounded to the nearest integer (without decimals).Note 3 to entry: To define the gloss scale, polished black glass with a refractive index of 1,567 at a wavelength of 587,6 nm is assigned to the value of 100 for 20, 60 and 85 geometries.DIN EN ISO
37、 2813:2015-02 EN ISO 2813:2014 (E) 4Note 4 to entry: A glass surface with a reflective index of 1,567 at a wavelength of 546,1 nm (which is the central wavelength of the spectral luminous efficiency function) may be used.Note 5 to entry: The gloss value is influenced by the surface characteristics,
38、e.g. roughness, texture, structure, of the sample.4 PrincipleWith a reflectometric apparatus, gloss values are determined on coated surfaces, correlating with the visual gloss perception. In this context (glossmeter), the ratio of the gloss of the coating and the gloss of a polished plane glass plat
39、e with specified reference refractive index is obtained.The method of gloss measurement is specified by the following parameters: measuring angles; field stop apertures; spectral adaptation; reference refractive index.5 Basic principles of the gloss measurementGloss is a visual perception caused by
40、looking at surfaces. The specular reflection of objects is even more distinct when light is reflected more directionally from the surface. The incident light is reflected on high-gloss surfaces only in the main specular direction. On matt surfaces the light is not only reflected in the main specular
41、 direction but also diffusely scattered in all solid angles. The more uniformly the light is scattered into the space the smaller is the intensity of the directed component and the matter the surface appears.The principle of gloss measurement is based on the measurement of the directionally reflecte
42、d light. In this context its intensity is measured in a defined angular field around the reflection angle. The intensity of the reflected light depends on the surface material and the incident angle. Accordingly, on coated surfaces with increasing incident angle more light is reflected. The remainin
43、g light is refracted at the interface air/coating, and within the coating diffusion and/or absorption of the light occurs.The gloss values are not related to the intensity of the incident light but to the reflection properties of a black, polished glass standard with specified refractive index.For d
44、ifferent viewing angles the gloss perception can vary widely. For example matt surfaces can appear glossy under grazing incidence of light and low viewing angle, because under these reflection conditions a lot of light is reflected directionally and also the intensity of diffusion is low.Figure 1 il
45、lustrates the relation between the gloss perception of visually equally classified coating specimens (from matt to glossy) and the assigned gloss values for the measuring angles of 20, 60 and 85.EXAMPLE Visual classification 9 corresponds to 35 GU under 20, 70 GU under 60 and 95 GU under 85.DIN EN I
46、SO 2813:2015-02 EN ISO 2813:2014 (E) 5 KeyY gloss valueX increasing gloss perception from matt to glossyFigure 1 Gloss curvesDue to the non-linearity of the characteristic curves in accordance with Figure 1, the gloss for each measuring angle can only be differentiated over a specific range. In prac
47、tice depending on the degree of gloss of the specimen surface the following measuring angles have been proved (see Figure 2): 20 geometry for high-gloss surfaces; 60 geometry for semigloss surfaces; 85 geometry for matt surfaces.For each gloss value the geometry shall be indicated.DIN EN ISO 2813:20
48、15-02 EN ISO 2813:2014 (E) 6Figure 2 Measuring angles6 Apparatus and calibration equipment6.1 Glossmeter6.1.1 Optical construction and course of beamThe course of beam of the glossmeter is illustrated in Figure 3. The light of a source is collimated onto the test surface at a specified angle, and the reflected light is received by a lens at the same angle and focused onto
