1、May 2016 English price group 9No 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).ICS 17.180.20; 87.060.20!%SMJ“2484239www.
2、din.deDIN EN ISO 4630Clear liquids Estimation of colour by the Gardner colour scale (ISO 4630:2015);English version EN ISO 4630:2015,English translation of DIN EN ISO 4630:2016-05Klare Flssigkeiten Bestimmung der Farbe nach der Gardner-Farbskala (ISO 4630:2015);Englische Fassung EN ISO 4630:2015,Eng
3、lische bersetzung von DIN EN ISO 4630:2016-05Liquides clairs valuation de la couleur au moyen de lchelle de couleur Gardner (ISO 4630:2015);Version anglaise EN ISO 4630:2015,Traduction anglaise de DIN EN ISO 4630:2016-05SupersedesDIN EN ISO 4630-1:2005-03 andDIN EN ISO 4630-2:2005-03www.beuth.deDocu
4、ment comprises 14 pagesDTranslation by DIN-Sprachendienst.In case of doubt, the German-language original shall be considered authoritative.04.16 DIN EN ISO 4630:2016-05 2 A comma is used as the decimal marker. National foreword This document (EN ISO 4630:2015) has been prepared by Technical Committe
5、e ISO/TC 35 “Paints and varnishes” in collaboration with Technical Committee CEN/TC 139 “Paints and varnishes” (Secretariat: DIN, Germany). The responsible German body involved in its preparation was DIN-Normenausschuss Beschichtungs-stoffe und Beschichtungen (DIN Standards Committee Coatings and Co
6、ating Materials), Working Committee NA 002-00-02 AA Lackrohstoffe. ISO 4630 was prepared in collaboration with ASTM D 01.34, Naval stores. It has been harmonized with ASTM D 1544-04, Standard Test Method for Color of Transparent Liquids (Gardner Color Scale) and ASTM D 6166-12, Standard Test Method
7、for Color of Naval Stores and Related Products (Instrumental Determination of Gardner Color). The DIN Standards corresponding to the International Standards referred to in this document are as follows: ISO 3696 DIN ISO 3696 ISO 5725-2 DIN ISO 5725-2 ISO 13632 DIN EN ISO 13632 ISO 15528 DIN EN ISO 15
8、528 Amendments This standard differs from DIN EN ISO 4630-1:2005-03 and DIN EN ISO 4630-2:2005-03 as follows: a) Parts 1 and 2 have been combined into one standard; b) the spectrophotometric method (formerly described in DIN EN ISO 4630-2:2005-03) is now the only standardized method; c) the original
9、 visual comparison of colours (formerly described in DIN EN ISO 4630-1:2005-03) has been deleted, and the description of manufacture of the original Gardner colour standards has been moved to Annex A. Previous editions DIN ISO 4630: 1982-11, 1999-01 DIN EN ISO 4630-1: 2005-03 DIN EN ISO 4630-2: 2005
10、-03 DIN EN ISO 4630:2016-05 3 National Annex NA (informative) Bibliography DIN EN ISO 13632, Binders for paints and varnishes Rosin Sampling and sample preparation for colour measurement DIN EN ISO 15528, Paints, varnishes and raw materials for paints and varnishes Sampling DIN ISO 3696, Water for a
11、nalytical laboratory use Specification and test methods 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 EN ISO 4630:2016-05 4 This page is intenti
12、onally blank EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN ISO 4630 December 2015 ICS 87.060.20 Supersedes EN ISO 4630-1:2004, EN ISO 4630-2:2004English Version Clear liquids Estimation of colour by the Gardner colour scale (ISO 4630:2015) Liquides clairs valuation de la couleur au moyen de l
13、chelle de couleur Gardner (ISO 4630:2015) Klare Flssigkeiten Bestimmung der Farbe nach der Gardner-Farbskala (ISO 4630:2015) This European Standard was approved by CEN on 1 November 2015. CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giv
14、ing 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 off
15、icial 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 o
16、f 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, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain,
17、 Sweden, Switzerland, Turkey and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG CEN-CENELEC Management Centre: Avenue Marnix 17, B-1000 Brussels 2015 CEN All rights of exploitation in any form and by any means reserved worldwide f
18、or CEN national Members. Ref. No. EN ISO 4630:2015 EEN ISO 4630:2015 (E) 2 DIN EN ISO 4630:2016-05 Contents Page European foreword . 3 Foreword 4 1 Scope 5 2 Normative references 5 3 Principle . 5 4 Apparatus and materials 5 5 Sampling . 6 6 Procedure. 6 7 Expression of results 6 8 Precision . 6 8.1
19、 General 6 8.2 Repeatability limit, r 6 8.3 Reproducibility limit, R . 7 8.4 Bias . 7 9 Test report . 7 Annex A (normative) Gardner colour standards 8 Bibliography . 10 EN ISO 4630:2015 (E) 3 DIN EN ISO 4630:2016-05 European foreword This document (EN ISO 4630:2015) has been prepared by Technical Co
20、mmittee 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 European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the
21、latest by June 2016, and conflicting national standards shall be withdrawn at the latest by June 2016. 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 suc
22、h patent rights. This document supersedes EN ISO 4630-1:2004, EN ISO 4630-2:2004. 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 Repub
23、lic, Denmark, Estonia, Finland, Former Yugoslav Republic of Macedonia, 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. Endor
24、sement notice The text of ISO 4630:2015 has been approved by CEN as EN ISO 4630:2015 without any modification. ForewordISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is
25、 normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part
26、 in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization.The procedures used to develop this document and those intended for its further maintenance are described in the ISO/IEC Directives, Part 1. In particula
27、r the different approval criteria needed for the different types of ISO documents should be noted. This document was drafted in accordance with the editorial rules of the ISO/IEC Directives, Part 2 (see www.iso.org/directives).Attention is drawn to the possibility that some of the elements of this d
28、ocument may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. Details of any patent rights identified during the development of the document will be in the Introduction and/or on the ISO list of patent declarations received (see www.iso
29、.org/patents).Any trade name used in this document is information given for the convenience of users and does not constitute an endorsement.For an explanation on the meaning of ISO specific terms and expressions related to conformity assessment, as well as information about ISOs adherence to the WTO
30、 principles in the Technical Barriers to Trade (TBT) see the following URL: Foreword - Supplementary informationISO 4630 was prepared by Technical Committee ISO/TC 35, Paints and varnishes, Subcommittee SC 10, Test methods for binders for paints and varnishes, in collaboration with ASTM D 01.34, Nav
31、al stores. It has been harmonized with ASTM D 1544-04, Standard test Method for Color of Transparent Liquids (Gardner Color Scale) and ASTM D 6166-12, Standard Test Method for Color of Naval Stores and Related Products (Instrumental Determination of Gardner Color).This third edition of ISO 4630 canc
32、els and replaces ISO 4630-1:2004 and ISO 4630-2:2004, which have been technically revised. The main changes are:a) both standards have been combined into one standard;b) the spectrophotometric method (formerly described in ISO 4630-2:2004) is the only one standardized now;c) the original visual comp
33、arison of colours (formerly described in ISO 4630-1:2004) has been deleted, and the description of manufacture of the original Gardner colour standards has been moved to Annex A.EN ISO 4630:2015 (E) DIN EN ISO 4630:2016-05 41 ScopeThis International Standard specifies a method for estimating the col
34、our of optically clear, yellow/brownish coloured liquid products by means of the Gardner colour scale using colour-measuring instruments. The method uses the Gardner colour scale described in Annex A.It is applicable to drying oils, varnishes and solutions of fatty acids, polymerized fatty acids, re
35、sins, tall oil, tall oil fatty acids, rosin and related products. The results might be invalid if other products are tested.The method described provides a more precise way of measuring Gardner colour than a visual sample comparison using human eyes. It is applicable to products having colours from
36、Gardner 1 to Gardner 18. The Gardner scale is not applicable to products with colours darker than 18. For products with colours lighter than Gardner 1 the method specified in ISO 6271 applies.2 Normative referencesThe following referenced documents, in whole or in part, are normally referenced in th
37、is document and are indispensable for its application. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies.ISO 3696, Water for analytical laboratory use Specification and test methodsISO 5725-2
38、, Accuracy (trueness and precision) of measurement methods and results Part 2: Basic method for the determination of repeatability and reproducibility of a standard measurement methodISO 13632, Binders for paints and varnishes Rosin Sampling and sample preparation for colour measurementISO 15528, Pa
39、ints, varnishes and raw materials for paints and varnishes SamplingCIE Publication No. 15:2004, Colorimetry3 PrincipleThe colour of a liquid sample is measured using an instrument capable of measuring transmitted colour and reporting in Gardner colours or in a colour system that can be converted int
40、o Gardner colours.4 Apparatus and materials4.1 Colour-measuring instrument, spectrophotometer capable of measuring transmitted colour (0/180 geometry) and reporting the results in the Gardner colour scale. If such an instrument is not available, one may be used which is capable of measuring transmit
41、ted colour and reporting in tristimulus values using standard illuminant C and the 2 observer, described in CIE Publication No. 15:2004.4.2 Absorption cells, 10 mm light path length recommended, unless a different path length is specified by the instrument manufacturer or4.3 Glass tubes, 11 mm path
42、length. Glass test tubes designed for a specific instrument may be used.EN ISO 4630:2015 (E) DIN EN ISO 4630:2016-05 55 SamplingTake a representative sample of the product to be tested, as described in ISO 15528.In the case of rosin, take a representative sample, as specified in ISO 13632.6 Procedur
43、eBaseline calibration of the instrument shall be performed following the instrument manufacturers recommendations.If the material to be tested is cloudy, first filter it (see Note). Then, using the same type of glass tube or absorption cell as used for the baseline calibration, fill the glass tube o
44、r absorption cell with the product. Take care not to touch the measurement area of the glass tube or absorption cell.If the material shows any visual haziness, remove the haze e.g. by filtration, centrifugation, heating, ultrasonic treatment or any other suitable means (see Note).If the haziness can
45、not be removed, the measured value will be unreliable.Then, using the same type of glass tube or absorption cell as used for the baseline calibration, fill the glass tube or absorption cell with the product. Take care not to touch the measurement area of the glass tube or absorption cell.Avoid creat
46、ing air bubbles when filling the glass tube or absorption cell. If air bubbles are formed and remain trapped, remove them by heating, vacuum, ultrasonic treatment or any other suitable means (see Note).NOTE Some sample pre-treatments can change the colour.Insert the glass tube or absorption cell in
47、the instrument and measure the Gardner colour, following the instrument manufacturers recommended procedure.Regular checks as per the instrument manufacturers recommendations should be carried out. These will normally be in the form of checks with certified reference materials.7 Expression of result
48、sReport the colour in Gardner colour units to the nearest tenth of a Gardner unit as given by the instrument.8 Precision8.1 GeneralThe precision of the test method was determined by interlaboratory testing in accordance with ISO 5725-2.Three different materials were tested by 13 laboratories.8.2 Rep
49、eatability limit, rThe repeatability limit r is the value below which the absolute difference between two single test results, each the mean of duplicates, obtained on identical material by one operator in one laboratory within a short interval of time using the standardized test method can be expected to lie with a probability of 95 %.The repeatability for three repeated measurements, made in accordance with this International Standard and expressed as th
