Kitchen sinks - Functional requirements and test methods

This European Standard specifies the functional requirements of and test methods for kitchen sinks for domestic purposes, which ensure that the product, when installed in accordance with the manufacturers’ instructions, gives satisfactory performance.
NOTE 1   For the purposes of this standard, the term "domestic purposes" includes use in hotels, accommodation for students, hospitals and similar buildings.
This document does not specify aesthetic requirements and the overall dimensions of kitchen sinks.
It does not apply to industrial kitchen sinks.
NOTE 2   All drawings are examples only; other forms are permissible.

Küchenspülen - Funktionsanforderungen und Prüfverfahren

Diese Europäische Norm legt Funktions!eigenschaften" und Prüfverfahren für Haushaltsküchenspülen fest, die sicherstellen, dass bei Einbau nach den Herstelleranweisungen das Produkt eine zufriedenstellende Gebrauchstauglichkeit aufweist.
ANMERKUNG 1   Im Sinne dieser Norm schließt der Begriff „für den Hausgebrauch“ den Einsatz in Hotels, Studentenwohnheimen, Krankenhäusern und ähnlichen Einrichtungen ein.
Diese Norm legt keine ästhetischen !Eigenschaften" und Gesamtabmessungen von Küchenspülen fest.
Sie gilt nicht für Küchenspülen für den gewerblichen Bereich.
ANMERKUNG 2   Bei allen Zeichnungen handelt es sich lediglich um Beispiele; andere Formen sind zulässig.

Éviers de cuisine - Prescriptions fonctionnelles et méthodes d'essai

Ce document détermine les exigences fonctionnelles et les méthodes d'essai relatives aux éviers de cuisine à usage domestique qui garantissent que le produit, installé selon les instructions du fabricant, donne une performance satisfaisante.
NOTE 1   Pour les besoins de la présente norme, le terme « usages domestiques » s’applique à l’utilisation dans les hôtels, logements pour étudiants, hôpitaux et bâtiments similaires.
Ce document ne détermine pas d'exigences en termes d'esthétique et de dimensions hors tout.
Elle ne s'applique pas aux éviers de cuisine à usage industriel.
NOTE 2   Tous les dessins ne sont donnés qu'à titre d'exemples ; d'autres formes sont admissibles.

Kuhinjska korita - Funkcionalne zahteve in preskusne metode

Ta evropski standard določa funkcionalne zahteve in preskusne metode za kuhinjska korita za domačo uporabo, ki zagotavljajo, da izdelek, ki je vgrajen v skladu z navodili proizvajalca, deluje zadovoljivo.
OPOMBA 1: Za namene tega standarda izraz »domača uporaba« vključuje uporabo v hotelih, namestitvah za študente, bolnišnicah in podobnih stavbah.
Ta dokument ne določa estetskih zahtev in skupnih mer kuhinjskih korit.
Ne zajema industrijskih kuhinjskih korit.
OPOMBA 2: Vse risbe so samo primeri; dopustne so druge oblike.

General Information

Status
Published
Publication Date
16-Oct-2018
Current Stage
9093 - Decision to confirm - Review Enquiry
Due Date
04-Mar-2021
Completion Date
11-May-2021

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2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Kuhinjska korita - Funkcionalne zahteve in preskusne metodeKüchenspülen - Funktionsanforderungen und PrüfverfahrenÉviers de cuisine - Prescriptions fonctionnelles et méthodes d'essaiKitchen sinks - Functional requirements and test methods97.040.10Kuhinjsko pohištvoKitchen furnitureICS:Ta slovenski standard je istoveten z:EN 13310:2015+A1:2018SIST EN 13310:2015+A1:2018en,fr,de01-december-2018SIST EN 13310:2015+A1:2018SLOVENSKI

STANDARDSIST EN 13310:20151DGRPHãþD
SIST EN 13310:2015+A1:2018
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 13310:2015+A1
October
t r s z ICS
{ yä r v rä s r English Version

Kitchen sinks æ Functional requirements and test methodsÉviers de cuisine æ Prescriptions fonctionnelles et méthodes d 5essai

Küchenspülen æ Funktionsanforderungen und Prüfverfahren This European Standard was approved by CEN on

w June
t r s w and includes Amendment
s approved by CEN on
s v April
t r s zä

egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä

translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä

CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä

EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre:
Rue de la Science 23,
B-1040 Brussels

t r s z CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN

s u u s rã t r s w ªA sã t r s z ESIST EN 13310:2015+A1:2018
EN 13310:2015+A1:2018 (E) 2 Contents Page

European foreword ....................................................................................................................................................... 3 1 Scope .................................................................................................................................................................... 4 2 Normative references .................................................................................................................................... 4 3 Terms and definitions ................................................................................................................................... 4 4 !Characteristics" .................................................................................................................................... 7 4.1 General ................................................................................................................................................................ 7 4.2 Connecting dimensions ................................................................................................................................. 7 4.3 Draining of water ............................................................................................................................................ 7 4.4 Resistance to dry heat ................................................................................................................................... 8 4.5 Resistance to temperature changes ......................................................................................................... 8 4.6 Resistance against chemicals and staining agents .............................................................................. 8 4.7 Surface stability ............................................................................................................................................... 8 4.8 Load stability .................................................................................................................................................... 8 4.9 Flow rate of the overflow.............................................................................................................................. 9 4.10 Durability ........................................................................................................................................................... 9 5 Test methods .................................................................................................................................................... 9 5.1 General ................................................................................................................................................................ 9 5.2 Draining of water ............................................................................................................................................ 9 5.3 Resistance to dry heat ................................................................................................................................... 9 5.4 Resistance to temperature changes ...................................................................................................... 10 5.5 Resistance against chemicals and staining agents ........................................................................... 12 5.6 Resistance to scratching ............................................................................................................................ 14 5.7 Resistance to abrasion ............................................................................................................................... 16 5.8 Load stability ................................................................................................................................................. 18 5.9 Determination of the flow rate of overflow ........................................................................................ 18 6 Dangerous substances ................................................................................................................................ 19 7 Marking ............................................................................................................................................................ 19 8 Assessment and verification of constancy of performance – AVCP............................................ 20 8.1 General ............................................................................................................................................................. 20 8.2 Type testing .................................................................................................................................................... 20 8.3 Factory production control (FPC) .......................................................................................................... 21 Annex A (informative)

Care and use of kitchen sinks .................................................................................... 23 Annex ZA (informative)

Relationship of this European Standard with Regulation (EU) No. 305/2011 ................................................................................................................................................. 24 Bibliography ................................................................................................................................................................. 26

SIST EN 13310:2015+A1:2018

EN 13310:2015+A1:2018 (E) 3 European foreword This document (EN 13310:2015+A1:2018) has been prepared by Technical Committee CEN/TC 163 “Sanitary appliances”, the secretariat of 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 April 2019 and conflicting national standards shall be withdrawn at the latest by July 2020. 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 includes Amendment 1 approved by CEN on 14 April 2018.

This document supersedes !EN 13310:2015". The start and finish of text introduced or altered by amendment is indicated in the text by tags !".

This document has been prepared under a mandate given to CEN by the European Commission and the European Free Trade Association. For relationship with EU Construction Products Regulation, see informative Annex ZA, which is an integral part of this document. !The main changes introduced in EN 13310 were the following:

a) introduction of a new Annex ZA in accordance with the latest template (in the format of TF N 678 rev 1 of 2015-06-02); b) modification in the test procedure for resistance to scratching; c) modification of the marking of products; d) editorial modifications as agreed between representatives of EU/DG Growth, CEN/TC 163 and FECS on 2016-07-07 in Brussels for citation of standard in OJEU." 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, Former Yugoslav Republic of Macedonia, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the United Kingdom. SIST EN 13310:2015+A1:2018

EN 13310:2015+A1:2018 (E) 4 1 Scope This European Standard specifies the functional !characteristics" of and test methods for kitchen sinks for domestic purposes, which ensure that the product, when installed in accordance with the manufacturers’ instructions, gives satisfactory performance. NOTE 1 For the purposes of this standard, the term “domestic purposes” includes use in hotels, accommodation for students, hospitals and similar buildings. This document does not specify aesthetic !characteristics" and the overall dimensions of kitchen sinks. It does not apply to industrial kitchen sinks. NOTE 2 All drawings are examples only; other forms are permissible. 2 Normative references The 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 undated references, the latest edition of the referenced document (including any amendments) applies. EN 695, Kitchen sinks — Connecting dimensions EN ISO 6506-1, Metallic materials — Brinell hardness test — Part 1: Test method (ISO 6506-1) ISO 4211-3, Furniture — Tests for surface finishes — Part 3: Assessment of resistance to dry heat ISO 9352, Plastics — Determination of resistance to wear by abrasive wheels 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 kitchen sink bowl or group of bowls with (a) waste hole(s) and, if applicable, tap hole(s) and overflow(s), with or without draining areas, standing alone, integrated with, or assembled with a worktop or assembled into a purpose-built kitchen, intended for the preparation of foodstuffs, the washing of dishes and the discharge of domestic waste water 3.1.1 wall-hung sink sink which is fixed directly to the wall without a base unit

Note 1 to entry: See Figure 1: SIST EN 13310:2015+A1:2018
EN 13310:2015+A1:2018 (E) 5

Figure 1 — Wall-hung sink 3.1.2 sit-on sink sink which is mounted on top of a suitable base unit Note 1 to entry: See Figure 2:

Figure 2 — Sit-on sink 3.1.3 inset sink sink which is set into a kitchen work top from above, with the rim resting on the work top Note 1 to entry: See Figure 3:

Figure 3 — Inset sink 3.1.4 flush-sit sink sink which is set into a kitchen work top with the rim flush with, or within the thickness of the work top Note 1 to entry: See Figure 4: SIST EN 13310:2015+A1:2018

EN 13310:2015+A1:2018 (E) 6

Figure 4 — flush-sit sink 3.1.5 under-mounted sink sink which is set into a kitchen work top from below, butting up against the work top Note 1 to entry: See Figure 5:

Figure 5 — Under-mounted sink 3.2 multi-layer kitchen sink kitchen sink consisting of two or more layers 3.3 overflow device which prevents water from spilling over the external rim of the kitchen sink or work top 3.4 outside dimensions overall dimensions L, B and H of the kitchen sink Note 1 to entry: See Figure 6: SIST EN 13310:2015+A1:2018

EN 13310:2015+A1:2018 (E) 7

Figure 6 — Outside dimensions 3.5 product type !set of representative performance levels or classes of a construction product, in relation to its essential characteristics, produced using a given combination of raw materials or other elements in a specific production process Note 1 to entry: The definition is taken from Regulation (EU) No. 305/2011." 4 !Characteristics" 4.1 General !Instructions for installation, use and care shall be supplied. Annex A gives advice on the care and use of kitchen sinks which can be included in the instructions for use and care. NOTE The manufacturer's declaration of conformity with applicable European Directives is made in his instructions for use and care on materials intended to come into contact with foodstuffs (see Bibliography)." 4.2 Connecting dimensions The connecting dimensions shall meet the requirements specified in EN 695. 4.3 Draining of water When tested in accordance with 5.2 all surfaces of the kitchen sink shall be inclined towards the bowl(s) and/or outlet(s) to ensure the drainage of water. The requirement shall apply only to the bowl and the draining area (if applicable). The requirement shall not apply to tap platforms. SIST EN 13310:2015+A1:2018

EN 13310:2015+A1:2018 (E) 8 4.4 Resistance to dry heat The test is intended to determine the suitability of kitchen sink surfaces where contact with moderately hot cooking pots is to be expected. When tested in accordance with 5.3, or alternatively at a temperature of 180 °C in accordance with ISO 4211-3, the kitchen sink shall not show surface changes which influence its usage, e.g. cracks, crazing, through cracks, blistering. Experience has shown that kitchen sinks made of glazed ceramics and stainless steel comply with this !characteristic". 4.5 Resistance to temperature changes When tested in accordance with 5.4, the kitchen sink shall not show surface changes which influence its intended usage, e.g. cracks, de-lamination. Experience has shown that kitchen sinks made of glazed ceramics and stainless steel comply with this !characteristic". 4.6 Resistance against chemicals and staining agents Kitchen sinks, when used as intended, shall be resistant to household chemicals, foodstuffs and cleansing agents. When tested in accordance with 5.5, the kitchen sinks shall not show any permanent surface deterioration, such as stains or deterioration which are not removable with water or abrasive agents. 4.7 Surface stability 4.7.1 Resistance to scratching This !characteristic" is applicable only to multi-layer kitchen sinks to ensure the stability of the top layer. When tested in accordance with 5.6, any scratch shall not exceed 0,1 mm and/or the total depth of the top layer whichever is the least. Experience has shown that kitchen sinks made of glazed ceramics and stainless steel comply with this !characteristic". 4.7.2 Resistance to abrasion This !characteristic" is applicable only to multi-layer kitchen sinks to ensure the stability of the top layer. When tested in accordance with 5.7, the top layer of the test specimen shall not be abraded through. Experience has shown that kitchen sinks made of glazed ceramics and stainless steel comply with this !characteristic". 4.8 Load stability When tested in accordance with 5.8, the wall-hung sink shall not crack, fall down or show permanent distortion. SIST EN 13310:2015+A1:2018

EN 13310:2015+A1:2018 (E) 9 4.9 Flow rate of the overflow Every kitchen sink shall be protected against overflowing. When tested in accordance with 5.9, the flow rate of the overflow shall not be less than 0,20 l/s. NOTE In kitchen sinks with two or more bowls, it is possible to have only one overflow if the overflow from one bowl is interconnected to the other. A non-closeable outlet can also be used as an overflow. 4.10 Durability Kitchen sinks conforming to the !characteristics" of 4.3 to 4.8 are deemed to be durable. 5 Test methods 5.1 General The tests shall be performed in the following order: 5.2 - 5.9 - 5.8 - 5.4 - 5.3 The testing in accordance with 5.5, 5.6 and 5.7 can be conducted in any order but shall be conducted on new material for each test category. If the kitchen sink is designed with only one bowl, then for the test conducted in accordance with 5.3 the specimens shall be cut from a second kitchen sink. All tests shall be carried out at a room temperature of (23 ± 5) °C, except when stated differently. 5.2 Draining of water — Install the kitchen sink horizontally in accordance with the manufacturers’ installation instructions. The kitchen sink shall be cleaned with cleansing agents recommended by the manufacturer of the kitchen sink and afterwards shall be rubbed dry. — Use tap water coloured to contrast with the colour of the kitchen sink. — Pour not less than 1 l of this water along the highest part of the draining area, if present, and bowl(s). — Determine whether the water has drained to waste outlet hole(s). Water remaining due to surface tension is permitted. 5.3 Resistance to dry heat 5.3.1 Test apparatus and chemicals a) Rigid frame-work or test-rack of such a construction that a kitchen sink can be mounted horizontally, in such a way that all the outer rim is supported. The kitchen sink shall not be fastened or fixed to the frame-work or test-rack; b) thermometer, capable of measuring temperatures between 0 °C and 250 °C to an accuracy of ± 1 °C; c) cast cylindrical aluminium or aluminium alloy vessel, without a lid, the bottom of which has been machined flat. It shall have an external diameter of (100 ± 1,5) mm and an overall height of (70 ± 1,5) mm. The wall thickness shall be (2,5 ± 0,5) mm and the base thickness 2,55,00+ mm; d) heat source, for heating the vessel uniformly; SIST EN 13310:2015+A1:2018

EN 13310:2015+A1:2018 (E) 10 e) stirrer; f) heat-insulating board; g) glycerol tristearate [C17H35CO2CH (CH2O2CC17H35)2] or any other material of similar specific heat which will produce the same result. The same glycerol tristearate or other material can usually be used for at least 20 tests, but if it has been heated to a temperature above 200 °C, or in case of dispute, fresh material should be used. 5.3.2 Procedure — Fill the vessel with glycerol tristearate up to 10 mm below the top. — Fix the thermometer centrally in the vessel with its bulb about 6 mm from the bottom. — Use the heat source to raise the temperature of the glycerol tristearate to approximately 185 °C, stirring from time to time. — Transfer the vessel to the heat-insulating board. — Allow the temperature to fall to (180 ± 1) °C, stirring continuously. — Immediately place the vessel of hot glycerol tristearate in the centre of the bowl. — Allow to stand for 20 min without further stirring. — At the end of this period, remove the vessel and allow the kitchen sink to cool for a period of 45 min. — Using a sponge or brush spread a coloured test solution over the surface to be tested and allow 5 min for it to react. Wipe off the reagent with a moist sponge and examine the kitchen sink. The coloured test solution shall be prepared as follows: Add 1 ml liquid detergent to 100 g of eosine or methylene blue. This mixture shall be made up with deionized water to a volume of 1 l. 5.3.3 Test results Note any change of appearance of the tested surface of the kitchen sink when inspected from all sides with the naked eye at a distance of 60 cm and illuminated by a cool neon light of 150 lx measured at the surface of the sample. 5.4 Resistance to temperature changes 5.4.1 Test apparatus 5.4.1.1 Hot water supply, capable of delivering water at a temperature of about 95 °C. 5.4.1.2 Cold water supply, capable of delivering water at a temperature of about 15 °C. 5.4.1.3 Manifold, for connecting the hot water supply and the cold water supply to a discharge pipe. 5.4.1.4 Discharge pipe, with an internal diameter of 10 mm. 5.4.1.5 Rigid framework or test rack (see Figure 7) of such a construction that a kitchen sink can be mounted horizontally, in such a way that all the outer rim is supported. The kitchen sink shall not be fastened or fixed to the framework or test rack. SIST EN 13310:2015+A1:2018

EN 13310:2015+A1:2018 (E) 11 5.4.1.6 Thermometer, capable of measuring temperatures between 0 °C and 100 °C to an accuracy of ± 1 °C. 5.4.1.7 Flow meter, capable of measuring a flow rate of water of (0,1 ± 0,01) l/s. 5.4.2 Procedure a) Carry out the test on a kitchen sink that is fitted with a waste outlet that shall be open during the whole period of the test. b) The test shall be carried out in such a way that: 1) the outlet of the pipe is positioned not more than (80 ± 5) mm above the bottom of the sink; 2) the water impinges upon the bottom of bowl of the kitchen sink at a point anywhere on a circle with a radius of (110 ± 5) mm around the waste outlet hole. c) Discharge through the pipe during a period of (90 ± 1) s hot water with a flow rate of (0,1 ± 0,01) l/s. The temperature of this water at the outlet shall be (90 ± 2) °C. d) During a resting time of (30 ± 1) s there shall not be any further supply of water. e) Discharge through the pipe during a period of (90 ± 1) s cold water with a flow rate of (0,1 ± 0,01) l/s. The temperature of this water at the outlet shall be (15 ± 2) °C. f) During a resting time of (30 ± 1) s there shall not be any further supply of water. g) Repeat this procedure 1000 times without interruption. For kitchen sinks made from ceramic material stop the test procedure after 5 cycles. h) Using a sponge or brush spread a coloured test solution over the surface to be tested and allow 5 min for it to react. Wipe off the reagent with a moist sponge and examine the kitchen sink. The coloured test solution shall be prepared as follows: Add 1 ml liquid detergent to 100 g of eosine or methylene blue. This mixture shall be made up with deionized water to a volume of 1 l. 5.4.3 Test results Note any change of appearance of tested surface of the kitchen sink when inspected from all sides with the naked eye at a distance of 60 cm and illuminated by a cool neon light of 150 lx measured at the surface of the sample. SIST EN 13310:2015+A1:2018

EN 13310:2015+A1:2018 (E) 12 Dimensions in millimetres

Key 1 cold water supply 4 discharge pipe 2 hot water supply 5 rigid framework 3 manifold

Figure 7 — Test rack 5.5 Resistance against chemicals and staining agents 5.5.1 Test apparatus and chemicals a) chemicals/reagents The list of chemicals is given in Table 1. Each solution shall be prepared immediately before use with deionized water, and applied at a temperature of (23 ± 5) °C. SIST EN 13310:2015+A1:2018

EN 13310:2015+A1:2018 (E) 13 Table 1 — Chemicals Family Product Acids Acetic acid (CH3COOH), 10 % V/V Alkalines Sodium hydroxide (NaOH), 5 % m/m Alcohols Ethanol (C2H5OH), 70 % V/V Bleaches Sodium hypoclorite (NaOCI), 5 % active chlorine (CI2)a Staining agents Methylene blue, 1 % m/m Salts Sodium chloride (NaCI), 170 g/l, diluted to 50 % a Given bleach may be replaced by sodium percarbonate (2 Na2CO3 · 3 H2O2) prepared as follows: Dissolve 1 g of a commercial available powdery bleach based on sodium percarbonate containing 15 % to 30 % of the active component in 100 ml deionized water at room temperature. b) borosilicate watch glasses: 40 mm nominal diameter; c) pipettes; d) cleaning appliance; This appliance is shown in Figure 8, consisting of synthetic flexible open cell foam disc of 75 mm diameter and 15 mm thickness. This appliance is driven by means of a square axle which fits loosely into the device. Any rotating device having a mass of (1 000 ± 50) g can be used.

Key 1 square axle 2 foam a length of edge of square axle with a = b – 1 mm b length of square opening in cleaning device for fitting the axle Figure 8 — Cleaning appliance SIST EN 13310:2015+A1:2018

EN 13310:2015+A1:2018 (E) 14 e) 12 h-alumina (suspension of aluminium oxide in water)1). 5.5.2 Test specimens Carry out the tests on a flat part of the kitchen sink. If necessary use test specimens (100 ± 5) mm × (100 ± 5) mm cut from a flat surface of the kitchen sink. 5.5.3 Procedure — Select a test area. — Use each test area for only one reagent. Clean the test area thoroughly with hot soapy water and then dry with a clean cloth. — At each of the test areas, deposit a drop of the test solution. Cover the drop thus formed with a watch glass concave side downwards. The drop size shall be determined so that it is completely covered by the watch glass. Allow the selected chemical to act for a time of (16 ± 0,25) h at a temperature of (23 ± 5) °C with the test areas protected from the sun. — Thoroughly rinse the test areas with deionized water and check for adverse changes in appearances by visual examination. If deterioration is detected, dip the foam disc in deionized water and place it on the surface to be cleaned and rotate it at 60 min-1. Clean for 30 revolutions. — Rinse with deionized water and visually examine the test area. If deterioration persists repeat the cleaning with the 12 h-alumina and re-examine the test area. 5.5.4 Expression of results — Note the exact test area. — Note whether or not the reagent has caused a stain or deterioration when inspected with the naked eye at a distance of 60 cm, and illuminated by cool neon light of 150 lx at the surface of the sample. Further note whether or not such stain or deterioration is removed and if so with water or abrasive agent. 5.6 Resistance to scratching 5.6.1 Test apparatus Scratch testing apparatus (see Figure 9) consisting of: 5.6.1.1 Stand with a device to indicate the horizontal position, e.g. a spirit level. 5.6.1.2 Freely rotating supporting turntable (A) which can be motor driven turning about a vertical axis without play. 5.6.1.3 Arm (B) carrying the holder for the diamond with scale (D), mounted on a horizontal axis ball bearing.

The height of this axis shall be adjustable so that the arm is exactly horizontal when the scratching point rests on the test specimen (F). 5.6.1.4 Means of applying a defined force (C).

1) A suitable product is available from MERCK Eurolab-Prolabo, 54 rue Roger Salengro, 94126 Fontenay sous Bois CEDEX, France, as DURMAX™ under product description N° 20993.

This information is given for the convenience of the users of this European Standard and does not constitute an endorsement by CEN of this product. SIST EN 13310:2015+A1:2018

EN 13310:2015+A1:2018 (E) 15 5.6.1.5 Diamond scratching point (E), cone-shaped, the axis of which is perpendicular to the sample surface and which has an angle of (45 ± 0,5)° at the top. The point of the cone shall be hemispherical with a radius of (0,09 ± 0,001) mm. Its geometrical regularity shall be verified and its profile measured on a complete rotation of 360°. The point shall be rejected, if any irregularity of the curvature above ± 0,001 mm is measured. All diamond points shall be rechecked after each 1 000 tests to confirm geometry. 5.6.1.6 Microscope or similar measuring device capable of measuring to an accuracy of 5

5.6.2 Test specimen Use a test specimen cut from the bottom of the kitchen sink bowl (see Figure 10). The test specimen shall be preconditioned at a temperature of (23 ± 2) °C and relative humidity of (50 ± 5) % for 24 h. When using a microscope, pre-coat the test specimen with an ink of a contrasting colour.

Figure 9 — Scratch-testing apparatus SIST EN 13310:2015+A1:2018
EN 13310:2015+A1:2018 (E) 16 Dimensions in millimetres

Figure 10 — Test specimen 5.6.3 Procedure — Adjust the height of the arm (B) so that it is horizontal when the diamond point rests on the test specimen (F). Place the arm (B) in a vertical position. Fix the test specimen (F) with the locking disc (A) and secure it correctly. Lower the arm (B) and place the diamond point in contact with the test specimen taking care to avoid any impact. — !Apply a weight of (2,0 ± 0,1) N." — Start rotating the turntable in order to produce a scratch of 3 cm to 4 cm long. — Measure the width of the scratch and calculate its depth as 50 % of the width of the scratch. Measure the thickness of the top layer in the middle of the four sides and calculate the average. 5.7 Resistance to abrasion 5.7.1 Principle The test measures the ability of the top layer of the multi-layer kitchen sink to resist abrasive wear through to the sub-layer. Abrasion is produced by rotating a test specimen in contact with a pair of loaded cylindrical wheels covered with abrasive paper. SIST EN 13310:2015+A1:2018

EN 13310:2015+A1:2018 (E) 17 5.7.2 Test apparatus and materials 5.7.2.1 Test machine2) as specified in ISO 9352. 5.7.2.2 Calibration plates of rolled zinc sheet having a thickness of (0,8 ± 0,1) mm and a Brinell hardness of (48 ± 2) HBW when tested in accordance with EN ISO 6506-1, except that the ball diameter shall be 5 mm and the load 360 N. 5.7.2.3 Abrasive paper strips with a width of 12,7 mm and length of about 160 mm having the followed specification3): — paper with weight of 70 g/m2 to 100 g/m2; — powdered aluminium oxide (AI2O3) having a par

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