BS EN ISO 9514-2005 Paints and varnishes - Determination of the pot life of multicomponent coating systems - Preparation and conditioning of samples and guidelines for testing《色漆和清.pdf

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1、BRITISH STANDARD BS EN ISO 9514:2005 Paints and varnishes Determination of the pot life of multicomponent coating systems Preparation and conditioning of samples and guidelines for testing The European Standard EN ISO 9514:2005 has the status of a British Standard ICS 87.040 BS EN ISO 9514:2005 This

2、 British Standard was published under the authority of the Standards Policy and Strategy Committee on 8 July 2005 BSI 8 July 2005 ISBN 0 580 46243 9 National foreword This British Standard is the official English language version of EN ISO 9514:2005. It is identical with ISO 9514:2005. It supersedes

3、 BS EN ISO 9514:1995 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee STI/10, Test methods for paints, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references

4、The British Standards which implement international publications referred to in this document may be found in the BSI Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Search” facility of the BSI Electronic Catalogue or of British Standards Online.

5、 This publication does not purport to include all the necessary provisions of a contract. Users are responsible for its correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to understand the text; present to the responsible

6、international/European committee any enquiries on the interpretation, or proposals for change, and keep UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises a front cover, an inside front cover, the EN

7、ISO title page, the EN ISO foreword page, the ISO title page, pages ii to iv, pages 1 to 7 and a back cover. The BSI copyright notice displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments EUROPEAN STANDARD NORME EUROPENNE E

8、UROPISCHE NORM EN ISO 9514 April 2005 ICS 87.040 Supersedes EN ISO 9514:1994 English version Paints and varnishes - Determination of the pot life of multicomponent coating systems - Preparation and conditioning of samples and guidelines for testing (ISO 9514:2005) Peintures et vernis - Dtermination

9、du dlai maximal dutilisation aprs mlange des systmes de revtement multicomposants - Prparation et conditionnement des chantillons et lignes directrices pour les essais (ISO 9514:2005) Beschichtungsstoffe - Bestimmung der Topfzeit von flssigen Systemen - Vorbereitung und Konditionierung von Proben un

10、d Richtlinien fr die Prfung (ISO 9514:2005) This European Standard was approved by CEN on 14 April 2005. 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 national standard without any alteration

11、. Up-to-date lists and bibliographical references concerning such national standards 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 translation

12、 under the responsibility of a CEN member into its own language and notified to the Central Secretariat has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary

13、, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION COMIT EUROPEN DE NORMALISATION EUROPISCHES KOMITEE FR NORMUNG Management Centre: rue de St

14、assart, 36 B-1050 Brussels 2005 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN ISO 9514:2005: E Foreword This document (EN ISO 9514:2005) has been prepared by Technical Committee ISO/TC 35 “Paints and varnishes“ in collaboration w

15、ith Technical Committee CEN/TC 139 “Paints and varnishes“, the secretariat of which is held by DIN. This document supersedes EN ISO 9514:1994. 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 Octob

16、er 2005, and conflicting national standards shall be withdrawn at the latest by October 2005. 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, De

17、nmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Endorsement notice The text of ISO 9514:2005 has been approved by CEN as

18、 EN ISO 9514:2005 without any modifications. EN ISO 9514:2005 Reference number ISO 9514:2005(E)INTERNATIONAL STANDARD ISO 9514 Second edition 2005-04-15 Paints and varnishes Determination of the pot life of multicomponent coating systems Preparation and conditioning of samples and guidelines for tes

19、ting Peintures et vernis Dtermination du dlai maximal dutilisation aprs mlange des systmes de revtement multicomposants Prparation et conditionnement des chantillons et lignes directrices pour les essaisEN ISO 9514:2005ii EN ISO 9514:2005 iiiContents Page Foreword iv 1 Scope 1 2 Normative references

20、 . 1 3 Terms and definitions. 2 4 Principle . 2 5 Required supplementary information . 2 6 Apparatus. 2 7 Sampling 3 8 Procedure. 3 9 Expression of results 3 10 Precision 4 11 Test report 4 Annex A (normative) Required supplementary information 5 Annex B (informative) Guide to testing of liquid syst

21、ems . 6 Bibliography . 7 EN ISO 9514:2005EN ISO 9514:2005 iv Foreword ISO (the International 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 commi

22、ttees. 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 in the work. ISO collaborates closely with the I

23、nternational Electrotechnical Commission (IEC) on all matters of electrotechnical 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 Internationa

24、l Standards adopted by the technical committees are circulated to the member bodies 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

25、 subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 9514 was prepared by Technical Committee ISO/TC 35, Paints and varnishes, Subcommittee SC 9, General test methods for paints and varnishes. This second edition cancels and replaces the fir

26、st edition (ISO 9514:1992). In this new edition, a conditioning chamber is used instead of a block of polystyrene. The latter can be used as an option for determining the pot life under near-adiabatic conditions. The table in Annex B detailing liquid systems and the possible tests that can be used t

27、o determine pot life has been expanded. EN ISO 9514:20051Paints and varnishes Determination of the pot life of multicomponent coating systems Preparation and conditioning of samples and guidelines for testing 1 Scope This International Standard describes a method, carried out under standard conditio

28、ns, for preparing and storing a sample of a multicomponent coating system and subsequently assessing its pot life by measuring a particular property/ies. Reactive systems curing within a short period of time, e.g. 3 h, will have the end of their pot life so near to the gel point that they will need

29、to be tested for that particular property in accordance with ISO 2535. Special “low temperature” grade systems will need to be tested at a lower specified temperature to reflect the conditions under which they will be used in practice. Additionally, it can be a requirement to determine pot life at a

30、 specified temperature or temperatures in order to cover a range of practical conditions under which a paint will be used. The method can be carried out either as a pass/fail test by determining the particular property/ies after a specified period of time, or as determination of the pot life by repe

31、ating determinations at convenient intervals of time. This International Standard is not intended for in situ control of products during their application. It is intended to determine “pot life” in the laboratory. NOTE The value obtained from this test method can be subject to modification by suppli

32、ers for practical reasons (e.g. starting temperature) when giving advice to users and should then be called the “practical pot life”. 2 Normative references The following referenced documents are indispensable for the application of this document. For dated references, only the edition cited applies

33、. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 1513, Paints and varnishes Examination and preparation of samples for testing ISO 3270, Paints and varnishes and their raw materials Temperatures and humidities for conditioning and testin

34、g ISO 15528, Paints, varnishes and raw materials for paints and varnishes Sampling 2 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 pot life maximum time during which a coating material supplied as separate components should be used after th

35、ey have been mixed together ISO 4618-1:1998 NOTE It is important that, in this definition, the words “should be used” are understood to refer to the application properties of the reactive system under test as well as the properties of the dried film. 4 Principle The components of the liquid system a

36、re conditioned separately and then mixed; the blend is allowed to stand for specified period(s) of time under nearly adiabatic conditions (see Note 1). Subsequently, a sample is withdrawn from the blend and a particular property/ies (see Note 2) is measured to check compliance with the requirement f

37、or that property for the product under test. NOTE 1 This International Standard specifies the conditions for preparing and storing a sample in order to assess the pot life; these conditions should be near to adiabatic so that they bear a close relationship to those which exist in practice, e.g. mixi

38、ng fairly large volumes of liquid reactive systems for use. NOTE 2 The pot life is dependent on a variety of properties, depending on the reactive system involved; because of this variety, the pot life can only be specified with reference to a particular property. Guidance on the property/ies to be

39、tested for various liquid systems is given in Annex B. 5 Required supplementary information For any particular application, the test method specified in this International Standard needs to be completed by supplementary information. The items of supplementary information are given in Annex A. 6 Appa

40、ratus Ordinary laboratory apparatus and glassware, together with the following. 6.1 Containers, of volume approximately 500 ml, made of any suitable material and with dimensions such that the height is 1 to 1,5 times the diameter. 6.2 Conditioning chamber. In certain instances, the sample needs to b

41、e held in near-adiabatic conditions to determine the pot life of the material accurately, i.e. the least possible heat loss from the sample should be allowed in order to simulate a reaction in a large volume of liquid. A block of polystyrene, polyurethane or glass foam, with one or more holes to hol

42、d the container, has been found suitable to maintain such conditions. Each hole should be surrounded with at least 20 mm of foam, and the insulating value of the foam should typically be not more than 25 W/(m K). The depth of the hole(s) should be equal to the height of the container. 6.3 Thermomete

43、r, capable of measuring to the nearest 0,2 C. 6.4 Measuring apparatus, in accordance with the standard giving the relevant test method for measuring the particular property/ies specified, e.g. viscometer, gloss meter, adhesion tester. EN ISO 9514:2005 37 Sampling Take a representative sample of each

44、 component of the product to be tested, as described in ISO 15528. Take sufficient quantities to test in duplicate. Examine and prepare each sample for testing, as described in ISO 1513. 8 Procedure Carry out the test in duplicate. Condition the components of the liquid system separately in accordan

45、ce with ISO 3270. After conditioning at the specified temperature, the difference in temperature between the components shall not be greater than 1 C. Special “low temperature” systems are tested at a lower specified temperature, so that it is possible to investigate particular properties, as requir

46、ed. Similarly, testing may be carried out over a range of temperatures to reflect conditions under which a paint system will be used in practice. Note the time, and mix the components in accordance with the instructions given for the particular system and to give a convenient quantity of blend for t

47、esting. Report the proportions of the components in the mixture in accordance with Annex A. Put (300 3) ml of the blend into a container. Close the container, if applicable, and put it into the conditioning chamber. If application properties are to be assessed, it is necessary to prepare a volume of

48、 blend approximately equal to the volume in which the paint will be supplied for use. For example, for airless spraying, the minimum volume shall be 5 l. NOTE Refer to Annex B for guidance on the properties that can be measured. If a pass/fail test is to be carried out, allow the blend to stand for

49、the specified pot life time and subsequently measure the particular property/ies under investigation. If the pot life itself is to be determined, allow the blend to stand for the periods of time chosen for the determination. After each period of time, i.e. at defined intervals, withdraw a sample from the container and measure the particular property/ies under investigation. The pot life is exceeded when the value of the property/ies under i