1、 g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58filler contentThe European Standard EN 15334:2007 has the status of a British StandardICS 91.140.70
2、Sanitary appliances Methacrylic dispersions of high BRITISH STANDARDBS EN 15334:2007BS EN 15334:2007 This British Standard was published under the authority of the Standards Policy and Strategy Committee on 30 March 2007 BSI 2007ISBN 978 0 580 50399 3Amendments issued since publicationAmd. No. Date
3、Commentscontract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations. National forewordThis British Standard was published by BSI. It is the UK implementation of EN 15334:2007.The UK participation in its preparation was
4、entrusted to Technical Committee B/503, Sanitary appliances.A list of organizations represented on B/503 can be obtained on request to its secretary.This publication does not purport to include all the necessary provisions of a EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN 15334February 2007ICS
5、91.140.70English VersionSanitary appliances - Methacrylic dispersions of high fillercontentAppareils sanitaires - Dispersions mthacryliques taux decharge leveSanitrausstattungsgegenstnde - Hochgefllte MethacrylDispersionenThis European Standard was approved by CEN on 13 January 2007.CEN members are
6、bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the
7、CEN 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 translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has the same stat
8、us as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Sl
9、ovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2007 CEN All rights of exploitation in any form and by any means reservedworldwide
10、for CEN national Members.Ref. No. EN 15334:2007: EEN 15334:2007 (E) 2 Contents Page Foreword3 1 Scope 4 2 Normative references 4 3 Terms and Definitions .4 4 Characteristics of dispersion .5 5 Test methods5 5.1 Tests on dispersion.5 5.1.1 Ash content 5 5.1.2 Agglomeration6 5.1.3 Contamination7 5.1.4
11、 Density 7 5.1.5 Viscosity .8 5.1.6 Shrinkage during curing .10 5.2 Tests on finished part .11 5.2.1 General11 5.2.2 Water absorption .11 5.2.3 Impact strength11 5.2.4 Flexural modulus and flexural strength 11 5.2.5 Abrasion resistance 11 5.2.6 Scratch resistance.11 5.2.7 Barcol hardness.11 5.2.8 Vi
12、cat softening point .12 5.2.9 Resistance to chemical agents 12 5.2.10 UV resistance .13 5.2.11 Thermal expansion 13 Bibliography 14 EN 15334:2007 (E) 3 Foreword This document (EN 15334:2007) has been prepared by Technical Committee CEN/TC 163 “Sanitary appliances”, the secretariat of which is held b
13、y 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 August 2007, and conflicting national standards shall be withdrawn at the latest by August 2007. According to the CEN/CENELEC Internal Regula
14、tions, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Nether
15、lands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EN 15334:2007 (E) 4 1 Scope This European Standard specifies test methods for measuring characteristics of pure methacrylic dispersions and sanitary appliances produced from dispersions by po
16、lymerisation. 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 59, Glass
17、 reinforced plastics - Measurement of hardness by means of a Barcol impressor EN 20105-A02, Textiles - Tests for colour fastness - Part A02: Grey scale for assessing change in colour (ISO 105-A02:1993) EN ISO 62:1999, Plastics - Determination of water absorption (ISO 62: 1999) EN ISO 178, Plastics -
18、 Determination of flexural properties (ISO 178: 2001) EN ISO 179-1, Plastics - Determination of Charpy impact properties - Part 1: Non-instrumented impact test (ISO 179-1: 2000) EN ISO 306:2004, Plastics - Thermoplastic materials - Determination of Vicat softening temperature (VST) (ISO 306: 2004) E
19、N ISO 3451-1, Plastics - Determination of ash - Part 1: General methods (ISO 3451-1: 1997) EN ISO 4892-2, Plastics - Methods of exposure to laboratory light sources - Part 2: Xenon-arc lamps (ISO 4892-2: 2006) ISO 4586-2, High-pressure decorative laminates - Sheets made from thermosetting resins - P
20、art 2: Determination of properties ISO 9352, Plastics - Determination of resistance to wear by abrasive wheels ISO 11359-2, Plastics - Thermomechanical analysis (TMA) - Part 2 - Determination of coefficient of linear thermal expansion and glass transition temperature 3 Terms and Definitions For the
21、purposes of this document, the following terms and definitions apply. 3.1 high filler content filler percentage of inorganic materials greater than 50 % w/w 3.2 liquid methacrylic resin solution of PMMA polymers and copolymers dissolved in MMA. NOTE Other chemicals may be added to this resin (e.g. t
22、hixotropes, colorants, mould release agents), to further develop resin properties EN 15334:2007 (E) 5 3.3 methacrylic dispersion dispersion produced by mixing inorganic filler(s) with liquid pure methacrylic resin 3.4 methacrylic dispersion types existing methacrylic dispersions used as materials fo
23、r sanitary appliances NOTE Methacrylic dispersion types are given in Table 1. Table 1 - Methacrylic dispersion types Filler type % of filler Application (examples) Comments ATH (Aluminium tri-hydrate) Around 60 Vanity basins Shower trays Work top surfaces Soft repairable surface Silica Around 60 Kit
24、chen sinks Baths Shower trays Quartz Around 70 Kitchen sinks, wash basins, shower trays, work top surfaces The functional surface has an higher content of filler than the bulk Material is purchased either as a resin mixed with filler or as a resin with the filler added by the sanitary appliance manu
25、facturer 4 Characteristics of dispersion The methacrylic dispersion manufacturer shall provide the following information: resin type (methacrylate esters); sedimenting /non sedimenting; filler type; polymerisation process (UV, redox, thermal, other). 5 Test methods 5.1 Tests on dispersion 5.1.1 Ash
26、content 5.1.1.1 General See EN ISO 3451-1. EN 15334:2007 (E) 6 Materials with filler made from aluminium trihydrate are exempt from this test. 5.1.1.2 Apparatus Source of heat ensuring the combustion of organic materials. Means of ensuring homogeneity of the dispersion to be tested (this is most imp
27、ortant for dispersions with high levels of sedimentation). Spatula for the sample. 5.1.1.3 Sample 2 g to 15 g of dispersion according to the dimensions of particles. 5.1.1.4 Procedure Ensure the sample is representative of the material to be tested. Stir or roll a larger sample of product for a mini
28、mum of 1 h to ensure redispersion of the product. Check that the crucible is clean and dry (heat the crucible to red hot to remove any combustible material). Allow to cool. Weigh the crucible (A). Give the product a final stir and then rapidly scoop a spatula full of material into the crucible. Do n
29、ot wait to drain the material from the spatula as consistency at this time is key to achieving reproducible results. Place the crucible on a scale and reweigh (B). If additional material is required, repeat the final step (final stir of the product). If too much material has been added, dispose of t
30、he contents and repeat from step (check crucible is clean and dry). Heat the crucible to red hot and burn off the combustible material. Ensure that the material does not spit out of the crucible during heating. This process will take a minimum of 5 min. Gently shake the crucible to make sure the rem
31、aining inorganic particles are free to move. If there are any agglomerates, repeat the procedure (heat the crucible to red hot). Allow to cool. Weigh the crucible (C). Calculate the ash content (AC), as percentage, as follows: AC= 100ABAC(1) 5.1.2 Agglomeration 5.1.2.1 General This test is for solid
32、 coloured material only and applies to materials with a particle size lower than 50 m. EN 15334:2007 (E) 7 5.1.2.2 Apparatus Steel filter, mesh size (180 20) m. 5.1.2.3 Sample 100 g of dispersion. 5.1.2.4 Procedure Dilute 100 g of the material under test with an equal volume of clean methyl methacry
33、late monomer. Pour this through the filter and rinse with more clean monomer. Check as to if agglomerates are left on the filter. 5.1.3 Contamination 5.1.3.1 Apparatus Light box with an opal cover. Clear polyester film (30 cm wide roll). Laboratory balance. Two glass plates (300 mm x 300 mm x 4 mm).
34、 5.1.3.2 Sample 100 g of dispersion. 5.1.3.3 Procedure Place one glass plate on the balance. Cut a piece of polyester film approximately 0,5 m long and place it on the glass. Tare the balance and weigh 50 g of the sample onto the polyester film and cover with another similar sized piece of polyester
35、 film. Place the glass plate over the opal panel on the light box. Place the second glass on top of the “cell allowing the sample to spread to form a circle approximately 0,25 m in diameter. Count the number of contaminants within the viewing area. Record the number of particles in the following siz
36、e ranges: - 0,01 mm2to 0,02 mm2- 0,02 mm2to 0,05 mm2- 0,05 mm2to 0,10 mm2- greater than 0,10 mm25.1.4 Density 5.1.4.1 Apparatus Conical flask (50 ml nominal capacity) complete with ground glass disc. EN 15334:2007 (E) 8 Thermometer (Range -10C to + 50C). Balance capable of determining weight up to 2
37、00 g to two decimal figures. Acetone. Lidded labelled container. 5.1.4.2 Sample Dispersion, enough to fill the flask. Avoid any sedimentation before pouring into the flask. 5.1.4.3 Procedure Ensure that the conical flask and glass disc are clean and dry. Record the combined weight of the flask and d
38、isc (Weight = A grams). Fill the flask with water at (23 2) C and place the glass disc on top of the flask. The correct volume of water has been dispensed into the flask when no air bubbles can be seen entrained below the glass disc. If the flask has been overfilled, excess water on the underside of
39、 the disc and the outside of the flask must be removed before reweighing (Weight = B grams). Discard the water and thoroughly dry the flask and disc before using with the dispersions under test. Assuming a density of 1,0 g/cm-3for water at 23 C, the volume of the flask at 23 C (VF) is calculated as:
40、 VF= 1AB cm3(2) Ensure that the dispersion to be tested is fully re-dispersed at (23 1) C. Pour the dispersion into the dry flask until full and place the glass disc on the top. As when determining the flask volume, ensure there are no air bubbles beneath the glass disc. Remove any excess dispersion
41、 on the underside of the disc or on the outside of the flask before weighing (Weight = C grams). Rinse the flask and disc repeatedly with acetone until clean. Dry the flask thoroughly before filling it with the next test sample. Density of the dispersion at 23 C (d) is determined as follows: d=FVAC
42、g/m3 (3) The density should be quoted to two decimal figures. 5.1.5 Viscosity 5.1.5.1 General This test is not applicable for sedimenting products. 5.1.5.2 Apparatus Brookfield viscometer. Viscometer spindles as defined on the product test specification sheet. Thermometer. EN 15334:2007 (E) 9 Stopwa
43、tch. 5.1.5.3 Sample Dispersion under consideration. 5.1.5.4 Procedure Ensure that the sample has been rolling for at least 4 h at 30 to 40 rev/min and is at (23 2) C to ensure product dispersion and correct temperature. Make sure the viscometer is level and select the appropriate speed and spindle f
44、or the material to be tested. Place the sample under the spindle and lower the viscometer until the spindle immersion mark is level with the surface of the sample and in the centre of the tin. Wait the specified standing time, then press down on the clutch lever and start the machine. After approxim
45、ately 10 s, release the clutch lever and start the stopwatch. Wait the specified test time and press and hold down the clutch lever again to lock the reading. When the pointer is visible in the window stop the machine and take the reading from the dial before releasing the clutch lever. Calculate th
46、e viscosity by multiplying the scale reading by the spindle factor (see Table 2). Note that this gives the viscosity in centipoise (1 centipoise = 0,01 Ps). Repeat the test at additional speeds as defined on the product test specification sheet. If required, calculate the thixotropy index (TI) as fo
47、llows: 1230=TI (4) where v30 is the viscosity at 30 rpm v12is the viscosity at 12 rpm (4) Table 2- Spindle factors for Brookfield model LV viscosimeter Speed (min-1) Spindle 1 Spindle 2 Spindle 3 Spindle 4 6 10 50 200 1 000 12 5 25 100 500 30 2 10 40 200 60 1 5 20 100 EN 15334:2007 (E) 10 5.1.6 Shri
48、nkage during curing 5.1.6.1 General The casting resins should be examined for shrinkage from liquid to solid using a mould of defined dimensions. 5.1.6.2 Apparatus Equipment for preparing the resin mixture (see product specific statements in the mixing instructions). Casting mould made from steel. I
49、nterior dimensions of 250 mm x 100 mm x 25 mm. Preferably coated with PTFE. Open to the top. Thermometer (accurate to +/- 1 C). Watch with a second hand. Paintbrush. 5.1.6.3 Test conditions Ambient temperature (23 2) C. Specimen and mould temperature (23 2) C. Conditioning time (see product specific statements in the mixing instructions). 5.1.6.4 Procedure Preparing the mixture: The mixture may only be prepared after the minimum maturing period has elapsed (time after the end of production) and
