1、BRITISH STANDARDBS EN ISO 1522:2006Paints and varnishes Pendulum damping testThe European Standard EN ISO 1522:2006 has the status of a British StandardICS 87.040g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g
2、44g55g55g40g39g3g37g60g3g38g50g51g60g53g44g42g43g55g3g47g36g58BS EN ISO 1522:2006This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 August 2007 BSI 2007ISBN 978 0 580 55050 8National forewordThis British Standard is the UK implementation of E
3、N ISO 1522:2006. It supersedes BS EN ISO 1522:2001 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee STI/10, Test methods for paints.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does
4、not purport to include all the necessary provisions of a contract. Users are responsible for its correct application.Compliance with a British Standard cannot confer immunity from legal obligations.Amendments issued since publicationAmd. No. Date CommentsEUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NO
5、RMEN ISO 1522December 2006ICS 87.040 Supersedes EN ISO 1522:2000 English VersionPaints and varnishes - Pendulum damping test (ISO 1522:2006)Peintures et vernis - Essai damortissement du pendule(ISO 1522:2006)Beschichtungsstoffe - Pendeldmpfungsprfung (ISO1522:2006)This European Standard was approved
6、 by CEN on 25 November 2006.CEN members are 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 nationalstan
7、dards may be obtained on application to the Central Secretariat 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 t
8、he Central Secretariat has the same status as the officialversions.CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France,Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway
9、, Poland, Portugal, Romania,Slovakia, 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 2006 CEN All rights of exploitation in any form and b
10、y any means reservedworldwide for CEN national Members.Ref. No. EN ISO 1522:2006: EForeword This document (EN ISO 1522:2006) 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
11、 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 latest by June 2007, and conflicting national standards shall be withdrawn at the latest by June 2007. This document supersedes EN ISO 1522:2
12、000. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvi
13、a, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Endorsement notice The text of ISO 1552:2006 has been approved by CEN as EN ISO 1552:2006 without any modifications. EN ISO 1522:2006Reference numberISO
14、 1522:2006(E)INTERNATIONAL STANDARD ISO1522Third edition2006-12-01Paints and varnishes Pendulum damping test Peintures et vernis Essai damortissement du pendule EN ISO 1522:2006ii iiiContents Page Foreword iv Introduction v 1 Scope . 1 2 Normative references . 1 3 Principle. 1 4 Apparatus 1 5 Sampli
15、ng 4 6 Test panels 4 7 Procedure 5 8 Expression of results . 5 9 Precision 5 10 Supplementary test conditions . 6 11 Test report . 6 Annex A (normative) Calibration of the Knig pendulum 7 Annex B (normative) Calibration of the Persoz pendulum 8 Bibliography . 9 EN ISO 1522:2006iv Foreword ISO (the I
16、nternational Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee
17、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 in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnica
18、l standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bod
19、ies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. ISO shall not be held responsible for identifying any
20、 or all such patent rights. ISO 1522 was prepared by Technical Committee ISO/TC 35, Paints and varnishes, Subcommittee SC 9, General test methods for paints and varnishes. This third edition cancels and replaces the second edition (ISO 1522:1998), which has been technically revised. The main changes
21、 are the following. The references to the original national standards, DIN 53157 (Knig pendulum) and NF T 30-016 (Persoz Pendulum), and to the ASTM standard ASTM D 4366 have been deleted since Germany, France and ASTM have adopted ISO 1512. The hardness of the ball bearings for the Persoz pendulum h
22、as been corrected. For the Persoz pendulum, the tolerance on the time for damping from a 12 displacement to a 4 displacement on a polished plate-glass panel has been changed from 10 s to 15 s. A preferred minimum dry-film thickness of the coating under test of 30 m has been added. For the Knig pendu
23、lum, it is common practice to measure the number of swings. A note has been added explaining how the number of swings can be converted into the time for the amplitude of swing to decrease. EN ISO 1522:2006vIntroduction Two test procedures are considered in some detail, namely those of Knig and Perso
24、z. The instruments embody the same principle that the amplitude of oscillation of a pendulum touching a surface decreases more rapidly the softer the surface but differ in respect of dimensions, period and amplitude of oscillation. The interaction between the pendulum and the paint film is complex,
25、depending as it does on both elastic and viscoelastic properties, and it is not possible to establish a general relationship between results obtained by the two tests. Therefore, only one type of pendulum should be used in a given series of measurements of damping time. The following considerations
26、may serve as a guide when considering which pendulum may offer an advantage for a particular purpose. a) On surfaces with a low coefficient of friction, the Persoz pendulum may skid, which would invalidate results; however, this occurs only rarely with paints and varnishes. b) It should be noted tha
27、t both instruments reflect the sensitivity of the physical properties of a paint to its environment, and the test therefore should be under controlled conditions of temperature and humidity and in the absence of draughts. The thickness of the paint film and the nature of the substrate may also affec
28、t the damping times. EN ISO 1522:2006blank1Paints and varnishes Pendulum damping test 1 Scope This International Standard specifies two methods of carrying out a pendulum damping test on a coating of paint, varnish or other, related, product. It is applicable to single coatings and to multicoat syst
29、ems. 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. ISO 1513, Paints and
30、varnishes Examination and preparation of samples for testing ISO 1514, Paints and varnishes Standard panels for testing ISO 2808, Paints and varnishes Determination of film thickness ISO 15528, Paints, varnishes and raw materials for paints and varnishes Sampling 3 Principle A pendulum resting on a
31、coating surface is set into oscillation and the time for the oscillation amplitude to decrease by an amount specified in this International Standard is measured. The shorter the damping time, the lower the hardness. 4 Apparatus 4.1 Pendulum. 4.1.1 Both the pendulums, as described in 4.1.2 and 4.1.3,
32、 comprise an open framework connected by a cross-bar on the under face of which two balls are inset to serve as the fulcrum, the lower end of the framework being formed into a pointer. The two pendulums differ in shape, mass, swinging time and other details, as described in 4.1.2 and 4.1.3. The pend
33、ulum shall be used away from draughts and vibrations. The use of a protective enclosure is recommended. EN ISO 1522:20062 4.1.2 The Knig pendulum (see Figure 1) rests on two tungsten-carbide balls of (5 0,005) mm diameter, of hardness (1 600 32) HV 30 1), and (30 0,2) mm apart and is counterpoised (
34、to adjust the natural frequency of oscillation) by means of a weight sliding on a vertical rod attached to the cross-bar. On a polished plate-glass panel, the period of oscillation shall be (1,40 0,02) s and the time for damping from a 6 displacement to a 3 displacement shall be (250 10) s. The tota
35、l mass of the pendulum shall be (200 0,2) g. Dimensions in millimetres Key 1 counterpoise (adjustable) 2 cross-bar, width 12 0,1 3 ball, 5 0,005 4 frame 5 tip Figure 1 Knig pendulum 1) HV = Vickers hardness determined in accordance with ISO 6507-1 2. EN ISO 1522:200634.1.3 The Persoz pendulum (see F
36、igure 2) rests on two tungsten-carbide balls of (8 0,005) mm diameter, of hardness (1 600 32) HV 30 1)and (50 1) mm apart. A counterpoise is not provided. On a polished plate-glass panel, the period of oscillation shall be (1 0,01) s and the time for damping from a 12 displacement to a 4 displacemen
37、t on the same substrate shall be (430 15) s. The total mass of the pendulum shall be (500 0,1) g and its centre of gravity at rest shall be (60 0,1) mm below the plane of the fulcrum, the pointer tip being (400 0,2) mm below the plane of the fulcrum. Dimensions in millimetres Key 1 ball, 8 0,005 2 c
38、entre of gravity Figure 2 Persoz pendulum EN ISO 1522:20064 4.2 Instrument stand. The stand for supporting test panel and pendulum is common to both pendulums and comprises a heavy supported vertical rod to which is attached a horizontal table with a flat working surface, the dimensions of which may
39、 conveniently be 95 mm 110 mm and not less than 10 mm thick. The stand also has a stirrup to support the pendulum away from the table and a mechanism for shock-free lowering of the pendulum on to the test panel. 4.3 Scale. The front of the stand shall be marked to show angular displacement of the pe
40、ndulum from a centre point, indicating the rest position of the pendulum, through 6 and 3 for a Knig pendulum and through 12 and 4 for a Persoz pendulum. The scale may be moved horizontally, and locked in position so that the zero marking and the test position of the pendulum tip coincide. This scal
41、e may be marked on a mirror, or a mirror may be placed behind the scale, to assist in eliminating parallax errors during observation. 4.4 Stopwatch, or other timing device, for timing the oscillation damping of the pendulum. 4.5 Polished plate (float) glass panel, for calibrating the pendulum. 5 Sam
42、pling Take a representative sample of the product to be tested (or of each product in the case of a multicoat system), as specified in ISO 15528. Examine and prepare each sample for testing, as specified in ISO 1513. 6 Test panels 6.1 Substrate Select the substrate from one of those specified in ISO
43、 1514, ensuring that the panels are plane, rigid and free from distortion. Metal or glass panels are recommended, with dimensions of approximately 100 mm 100 mm 5 mm. 6.2 Preparation and coating Unless otherwise specified, prepare each test panel in accordance with ISO 1514 and then coat it by the s
44、pecified method with the product or system under test. The test coating shall then be smooth and free from surface irregularities. 6.3 Drying and conditioning Dry (or stove) and age (if applicable) each coated test panel for the specified time and under the conditions specified by contract between t
45、he interested parties. Before testing, condition the test panels at a temperature of (23 2) C and relative humidity of (50 5) %, unless otherwise specified, for a minimum of 16 h. Fingerprints, dust or other contamination on the surface will result in lower accuracy. The coated panels should therefo
46、re be stored and handled in an appropriate way. 6.4 Thickness of coating Determine the thickness, in micrometres, of the dried coating by one of the procedures specified in ISO 2808. The minimum dry-film thickness of the coating should preferably be 30 m. EN ISO 1522:200657 Procedure 7.1 Calibration
47、 of the instruments Calibrate the instrument using the procedures specified in Annexes A and B. 7.2 Ambient conditions Unless otherwise specified, test panels shall be tested at (23 2) C and a relative humidity of (50 5) % (see also ISO 3270). 7.3 Determination of pendulum damping time Determine pen
48、dulum damping time on three different parts of the same test panel. Place the panel on the table with the paint film uppermost. Gently bring the pendulum onto the panel surface. Deflect the pendulum, without lateral displacement of the fulcrum, through the appropriate angle (6 for the Knig pendulum,
49、 12 for the Persoz pendulum) and allow it to rest against the stop provided. Release the pendulum and simultaneously start the stopwatch or other timing device. NOTE 1 In the case of automatic versions, the damping time will be measured automatically. Record the time, in seconds, for the amplitude of swing to decrease from either 6 to 3 (Knig pendulum) or from 12 to 4 (Persoz pendulum). NOTE 2 For the pendulum damping test using the Knig pendulum, it is comm
