1、May 2013 Translation by DIN-Sprachendienst.English price group 12No 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 91
2、.100.15; 73.020!%$Yy“2015486www.din.deDDIN EN 16301Natural stone test methods Determination of sensitivity to accidental staining;English version EN 16301:2013,English translation of DIN EN 16301:2013-05Prfverfahren fr Naturstein Bestimmung der Empfindlichkeit gegen unbeabsichtigte Fleckenbildung;En
3、glische Fassung EN 16301:2013,Englische bersetzung von DIN EN 16301:2013-05Mthodes dessai pour les pierres naturelles Dtermination de la sensibilit au tachage accidentel;Version anglaise EN 16301:2013,Traduction anglaise de DIN EN 16301:2013-05www.beuth.deDocument comprises 19 pagesIn case of doubt,
4、 the German-language original shall be considered authoritative.05.13DIN EN 16301:2013-05 2 A comma is used as the decimal marker. National foreword This document (EN 16301:2013) has been prepared by Technical Committee CEN/TC 246 “Natural stones” (Secretariat: UNI, Italy). The responsible German bo
5、dies involved in its preparation were the Normenausschuss Materialprfung (Materials Testing Standards Committee) and the Normenausschuss Bauwesen (Building and Civil Engineering Standards Committee), Joint Committee NA 062-03-11 GA Naturwerkstein; Anforderungen, Prfverfahren und Terminologie. EUROPE
6、AN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 16301 March 2013 ICS 73.020; 91.100.15 English Version Natural stone test methods - Determination of sensitivity to accidental staining Mthodes dessai pour les pierres naturelles - Dtermination de la sensibilit au tachage accidentel Prfverfahren fr Natu
7、rstein - Bestimmung der Empfindlichkeit gegen unbeabsichtigte Fleckenbildung This European Standard was approved by CEN on 12 January 2013. 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 natio
8、nal 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 vers
9、ion 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, C
10、zech 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, Sweden, Switzerland, Turkey and United Kingdom.
11、 EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: Avenue Marnix 17, B-1000 Brussels 2013 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN 16301:2013: EEN 16301:2
12、013 (E) 2 Contents Page Foreword 3 1 Scope 4 2 Normative references 4 3 Terms and definitions .4 4 Principle 5 5 Apparatus .5 6 Preparation of specimens .6 6.1 Sampling .6 6.2 Test specimens 7 6.2.1 Surface finish .7 6.2.2 Dimensions .7 6.2.3 Testing environment .7 6.2.4 Pre-conditioning and treatme
13、nt of the specimens .7 7 Procedure .7 7.1 Documentation of the test specimens .7 7.2 Staining agents to be used in the standard test .8 7.3 Staining procedure 8 7.4 Cleaning procedure .8 8 Evaluation of staining and expression of the result 9 9 Precision .9 10 Test report 9 Annex A (normative) Speci
14、fication of staining agents . 11 Annex B (informative) Colour pictures to facilitate the evaluation of staining 12 Bibliography . 17 DIN EN 16301:2013-05 EN 16301:2013 (E) 3 Foreword This document (EN 16301:2013) has been prepared by Technical Committee CEN/TC 246 “Natural stones”, the secretariat o
15、f which is held by UNI. 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 September 2013, and conflicting national standards shall be withdrawn at the latest by September 2013. Attention is drawn to
16、 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. According to the CEN/CENELEC Internal Regulations, the national standards organisations of the following co
17、untries 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, Norway,
18、Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. DIN EN 16301:2013-05 EN 16301:2013 (E) 4 1 Scope The European Standard specifies a method to assess the sensitivity of natural stones when exposed to accidental staining. It defines a procedure
19、for the application of the stains, the cleaning and the assessment of the surface appearance after cleaning. It also covers the possibility to assess the efficiency of a surface treatment. Note that the method does not intend to present any de-staining technique. 2 Normative references The following
20、 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 undated references, the latest edition of the referenced document (including any amendments) applies. EN ISO 11664-2, Colo
21、rimetry Part 2: CIE standard illuminants (ISO 11664-2) EN ISO 11998, Paints and varnishes Determination of wet-scrub resistance and cleanability of coatings (ISO 11998) ISO 1065, Non-ionic surface-active agents obtained from ethylene oxide and mixed non-ionic surface-active agents Determination of c
22、loud point 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 surface finishing final surface texture applied to a stone during processing 3.2 matt finished surface surface treatment to produce a very flat, uniform, but no polished finish Note 1
23、 to entry: Matt finished surface can be obtained by means of a silicium carbide bonded polishing disk with grain size F 400 mesh. 3.3 surface treatment application of certain materials (i.e chemicals) to the exposed face of a slab SOURCE: EN 12670:2001, 2.4.29 3.4 impregnation protection of the surf
24、ace of a stone by a pore-sealing product or a chemical coating 3.5 staining agent liquid used to produce stains on the surface of the stone DIN EN 16301:2013-05 EN 16301:2013 (E) 5 4 Principle A defined set of staining agents is applied on a defined stone surface. The mode of application is specifie
25、d. The specimens are conditioned and washed with a standardised cleaning machine. The stones are dried and the possible remainders of the stains are assessed by a visual observation. 5 Apparatus 5.1 Ventilated oven capable of maintaining a temperature of (40 5) C and (70 5) C 5.2 Pipette, 0,10 ml 1,
26、00 ml 5.3 Wet Abrasion Scrub Tester, according to EN ISO 11998. The machine (Figure 1) works with a sinus-shaped movement with a frequency of 35 cycles per minute, and amplitude of approximately 350 mm. The total weight of the scrubbing arm with dry cloth and its holder shall be (350 10) g. 5.4 Weig
27、hts to achieve the specified load on the scrubbing arm. Key a) scrubbing arm with dry cloth and its holder b) the machine Figure 1 Example of washability apparatus for cleaning test 5.5 Cleaning cloth a) Dimensions of the cloth 120 mm 38 mm (may be different depending on the cleaning equipment). b)
28、Thickness: (2 0,5) mm. c) Area weight: (300 50) g/m2. d) A thinner cloth may be used in layers to achieve the above stated properties. e) At least 50 % viscose (regenerated cellulose fibres). DIN EN 16301:2013-05 EN 16301:2013 (E) 6 f) At least 20 % cotton. 5.6 Holder for the cleaning cloth, e.g. wo
29、oden block (Figure 2). The scrubbing arm of the machine is equipped with e.g. a wooden block measuring 89 mm 38 mm 32 mm. The block holds a piece of cleaning cloth measuring 120 mm 38 mm. The standard dimensions of the scrubbing area of the brush in the standards mentioned above are 89 mm 39 mm. Dim
30、ensions in millimetres Key 1 cloth Figure 2 Cleaning cloth on wooden block 5.7 Camera, digital (a minimum of 2,5MPixels, uncompressed), for documentation of unstained and stained test specimens. 5.8 Daylight or illuminants D65 (6500K) according to EN ISO 11664-2. 5.9 Stand for repeatable photography
31、 conditions. 5.10 Cleaning solution pH-neutral, without abrasive, multipurpose cleaner, surfactant-based anionic type or a product basing the following composition: 12,5 % (m/m) of a sodium primary (C10-C14) polymer alkyl aryl sulphonate; 12,5 % (m/m) polyethylated derivatives of primary or secondar
32、y (C8-C16) alcohols with 5 to 15 ethoxylated groups having a cloud point of 25 C to 75 C in 1 % (m/m) aqueous solution (determination of cloud point is described in ISO 1065); 5,0 % (m/m) ethanol; 70 % (m/m) deinonized or distilled water. The cleaning agent shall be stored in a glass bottle in a coo
33、l dark place and should be used within 1 year of the day of preparation. 5.11 Hand spray pump for applying the cleaning solution. 5.12 Staining agents the set of staining agents to be used for the test is defined in Annex A. 6 Preparation of specimens 6.1 Sampling The method of sampling shall be sta
34、ted in the test report and shall be chosen so that the samples are representative of the batch to be tested. DIN EN 16301:2013-05 EN 16301:2013 (E) 7 6.2 Test specimens 6.2.1 Surface finish For identification test and comparison, the specimens shall have a “matt finished surface”. NOTE Schist and sl
35、ate are exceptions to this rule. They can be tested on natural cleft surface. For “technological testing”, surfaces with a roughness 0,5 mm are not suitable for testing due to the risk of damaging the apparatus. 6.2.2 Dimensions One sample set consists of three test specimens sized, minimum 300 mm b
36、y 100 mm, and thickness as in use (maximum 30 mm). Alternative dimensions can be used if different cleaning equipment is used. 6.2.3 Testing environment The test specimens shall be placed in (23 5) C and (50 5) % relative humidity during the entire stain exposure. Daylight or artificial light D65 is
37、 used during the photography and the evaluation. 6.2.4 Pre-conditioning and treatment of the specimens Marble and limestone shall be dried in (40 5) C for one week before the test. Other stone types shall be dried in (70 5) C for at least 24 h. Commercially used stone products are sometimes impregna
38、ted in some way to make them easier to clean. The traditional treatment of carbonaceous stones is soft soap, which partially seals the pores and makes the surface a bit more hydrophobic. For standard test the stones shall be non-treated as a reference. If a carbonaceous stone type is tested, one set
39、 should also be treated with soft soap 2,5 vol. % solution in water, or similar which is recommended by the Stone Industry federations. The soap treatment is not mandatory, but highly recommended. Instruction for the treatment with soft soap: the solution is sprayed on with a hand-pumped spray; afte
40、r 3 h: The next layer is applied; after another 21 h: The excess shall be rinsed off under running water. The test specimens are kept in (23 5) C and (50 5) % relative humidity for a minimum 16 h before applying the staining agents. If a surface treatment/coating chemical or impregnation chemical sh
41、all be tested, the procedure of applying this shall be documented and follow the manufacturers instruction. 7 Procedure 7.1 Documentation of the test specimens Document the test specimens by digital photography before the stains are applied. Use daylight or artificial light D65. The photographs shou
42、ld be scaled. DIN EN 16301:2013-05 EN 16301:2013 (E) 8 7.2 Staining agents to be used in the standard test The set of staining agents to be used for the test is defined in Annex A. NOTE For specific uses, it may be required to use also urine and blueberry soup (Annex A). Other products can be used a
43、nd prepared according to instructions by the manufacturer or commissioner. 7.3 Staining procedure All samples have to be stained in the same way. The stains shall have the same size and shape. All staining shall be performed at (23 5) C and (50 5) % relative humidity. The samples shall remain in thi
44、s atmosphere during the whole exposure time, usually 15 min and (48 1) hours as a default value. Other time schedules may be used provided that the commissioner asks for it. The diameter of the stains shall be (35 5) mm. NOTE Most water based stains, like Cola, wine and coffee has the same surface p
45、roperties and a suitable stain volume is 0,70 ml. This volume is also sufficient for ketchup which shall be spread out to the same size. A stain like oil has completely different surface properties and immediately floats out on most stone materials. To get a stain in the same size as for the water b
46、ased products a volume of 0,15 ml is suitable. Surface treated samples may need the staining agent to be spread out to reach the optimal 35 mm . Dimensions in millimetres Figure 3 Optimal sample size and stain pattern 7.4 Cleaning procedure Gently remove possible liquid residues of the stains with a
47、bsorb and dry paper. Apply the correct load to the cleaning arm, (350 10) g (arm, cloth and cloth holder). Prepare cleaning solution with 15 ml of the cleaning agent (ref. 5.10) in 1000 ml deionized or distilled water. Spray cleaning solution on the stains 4 min before the cleaning. Soak the cleanin
48、g cloth in cleaning solution. DIN EN 16301:2013-05 EN 16301:2013 (E) 9 Mount the cleaning cloth and the holder to the scrubbing arm. The stained surfaces are then washed with a “Wet Abrasion Scrub Tester”. Ten cleaning cycles (10 strokes back and forth) shall be used in all tests. Rinse the surfaces
49、 with 150 ml water to remove residues of the cleaning solution. Condition the test specimens for 24 h in (23 5) C and (50 5) % relative humidity before they are photographed and evaluated. Photograph the test specimens in using the same scaling and light conditions used to photograph the test specimen before staining. 8 Evaluation of staining and expression of the result A visual observation of the residual staining shall be made according to the followin
