BS EN ISO 591-1-2000 Titanium dioxide pigments for paints - Specifications and methods of test《涂料用二氧化钛颜料 规范和试验方法》.pdf

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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN ISO 591-1:2000 Inco

2、rporating Corrigendum No. 1 The European Standard EN ISO 591-1:2000 has the status of a British Standard ICS 87.060.10 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Titanium dioxide pigments for paints Part 1: Specifications and methods of testThis British Standard, having b

3、een prepared under the direction of the Sector Committee for Materials and Chemicals, was published under the authority of the Standards Committee and comes into effect on 15 December 2000 BSI 5 October 2001 ISBN 0 580 36811 4 BS EN ISO 591-1:2000 Amendments issued since publication Amd. No. Date Co

4、mments 13423 Corrigendum No. 1 5 October 2001 Incorporating annex ZA. National foreword This British Standard is the official English language version of EN ISO 591-1:2000. It is identical with ISO 591-1:2000. It supersedes BS 1851:1978 which is withdrawn. The UK participation in its preparation was

5、 entrusted to Technical Committee ST/1, Pigments, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related inter

6、national and European developments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative referenc

7、es to international publications with their corresponding European publications. The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence In

8、dex”, or by using the “Find” facility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself

9、confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN ISO title page, the EN ISO foreword page, the ISO title page, pages ii to iv, pages 1 to 12, the annex ZA page and a back cover. The BSI copyright notice displayed in this do

10、cument indicates when the document was last issued.EUROPEANSTANDARD NORMEEUROPENNE EUROPISCHENORM ENISO5911 September2000 ICS08.006.10;87.060.10 Englishversion TitaniumdioxidepigmentsforpaintsPart1:Specificationsand methodsoftest(ISO5911:2000) PigmentsdedioxydedetitanepourpeinturesPartie1: Spcificat

11、ionsetmthodesdessai(ISO5911:2000) TitandioxidPigmenteTeil1:Anforderungenund Prfverfahren(ISO5911:2000) ThisEuropeanStandardwasapprovedbyCENon15September2000. CENmembersareboundtocomplywiththeCEN/CENELECInternalRegulationswhichstipulatetheconditionsforgivingthisEurope an Standardthestatusofanationals

12、tandardwithoutanyalteration.Uptodatelistsandbibliographicalreferencesconcernings uchnational standardsmaybeobtainedonapplicationtotheManagementCentreortoanyCENmember. ThisEuropeanStandardexistsinthreeofficialversions(English,French,German).Aversioninanyotherlanguagemadebytra nslation undertherespons

13、ibilityofaCENmemberintoitsownlanguageandnotifiedtotheManagementCentrehasthesamestatusasthe official versions. CENmembersarethenationalstandardsbodiesofAustria,Belgium,CzechRepublic,Denmark,Finland,France,Germany,Greece, Iceland,Ireland,Italy,Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,Switze

14、rlandandUnitedKingdom. EUROPEANCOMMITTEEFORSTANDARDIZATION COMITEUROPENDENORMALISATION EUROPISCHESKOMITEEFRNORMUNG ManagementCentre:ruedeStassart,36B1050Brussels 2000CEN Allrightsofexploitationinanyformandbyanymeansreserved worldwideforCENnationalMembers. Ref.No.ENISO5911:2000EgaPe2 INESO9512:1000 C

15、ORRECTED20010411 Foreword ThetextoftheInternationalStandardISO5911:2000hasbeenpreparedbyTechnical CommitteeISO/TC35“Paintsandvarnishes“incollaborationwithTechnicalCommittee CEN/TC298“Pigmentsandextenders“,thesecretariatofwhichisheldbyDIN. ThisEuropeanStandardshallbegiventhestatusofanationalstandard,

16、eitherbypublication ofanidenticaltextorbyendorsement,atthelatestbyMarch2001,andconflictingnational standardsshallbewithdrawnatthelatestbyMarch2001. AccordingtotheCEN/CENELECInternalRegulations,thenationalstandardsorganizationsof thefollowingcountriesareboundtoimplementthisEuropeanStandard:Austria,Be

17、lgium, CzechRepublic,Denmark,Finland,France,Germany,Greece,Iceland,Ireland,Italy, Luxembourg,Netherlands,Norway,Portugal,Spain,Sweden,SwitzerlandandtheUnited Kingdom. Endorsementnotice ThetextoftheInternationalStandardISO5911:2000wasapprovedbyCENasaEuropean Standardwithoutanymodification. NOTE:Norma

18、tivereferencestoInternationalStandardsarelistedinannexZA(normative). ENISO5911:2000 Reference number ISO 591-1:2000(E) INTERNATIONAL STANDARD ISO 591-1 First edition 2000-09-15 Titanium dioxide pigments for paints Part 1: Specifications and methods of test Pigments de dioxyde de titane pour peinture

19、s Partie 1: Spcifications et mthodes dessai ENISO5911:2000 ii ENISO5911:2000 iii Contents Page Foreword.iv 1 Scope 1 2 Normative references 1 3 Term and definition .2 4 Classification2 4.1 Types.2 4.2 Grades.2 5 Required characteristics and associated tolerances .2 5.1 Appearance 2 5.2 Other charact

20、eristics.2 6 Sampling.4 7 Determination of titanium dioxide content .4 7.1 General4 7.2 Method A: Aluminium reduction method 4 7.3 Method B: Chromium(II) chloride reduction method .8 8 Test report 12 ENISO5911:2000 iv Foreword ISO (the International Organization for Standardization) is a worldwide f

21、ederation 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 has been established has the right to be represented on that co

22、mmittee. 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 electrotechnical standardization. International Standards are drafted in accor

23、dance with the rules given in the ISO/IEC Directives, Part 3. Draft International 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 i

24、s drawn to the possibility that some of the elements of this part of ISO 591 may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. International Standard ISO 591-1 was prepared by Technical Committee ISO/TC 35, Paints and varnishes, Sub

25、committee SC 2, Pigments and extenders. This part of ISO 591 cancels and replaces ISO 591:1977, which has been technically revised. In contrast to ISO 591:1977, which specified the Nakazono reductor method for the determination of the titanium dioxide content and allowed other methods to be used by

26、agreement between the interested parties, ISO 591-1 contains two methods (see clause 7). ISO 591 consists of the following parts, under the general title Titanium dioxide pigments for paints: Part 1: Specifications and methods of test Part 2: Determination of the content of secondary constituents EN

27、ISO5911:2000 1 Titanium dioxide pigments for paints Part 1: Specifications and methods of test 1 Scope This part of ISO 591 specifies the requirements and corresponding methods of test for titanium dioxide pigments for paints. 2 Normative references The following normative documents contain provisio

28、ns which, through reference in this text, constitute provisions of this part of ISO 591. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this part of ISO 591 are encouraged to investigate the possibility

29、 of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to applies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 385-1:1984, Laboratory glassware Buret

30、tes Part 1: General requirements. ISO 648:1977, Laboratory glassware One-mark pipettes. ISO 787-1:1982, General methods of test for pigments and extenders Part 1: Comparison of colour of pigments. ISO 787-2:1981, General methods of test for pigments and extenders Part 2: Determination of matter vola

31、tile at 105 C. ISO 787-3:2000, General methods of test for pigments and extenders Part 3: Determination of matter soluble in water Hot extraction method. ISO 787-5:1980, General methods of test for pigments and extenders Part 5: Determination of oil absorption value. ISO 787-9:1981, General methods

32、of test for pigments and extenders Part 9: Determination of pH value of an aqueous suspension. ISO 787-14:1973, General methods of test for pigments Part 14: Determination of resistivity of aqueous extract. ISO 787-18:1983, General methods of test for pigments and extenders Part 18: Determination of

33、 residue on sieve Mechanical flushing procedure. ISO 787-24:1985, General methods of test for pigments and extenders Part 24: Determination of relative tinting strength of coloured pigments and relative scattering power of white pigments Photometric methods. ISO 787-25:1993, General methods of test

34、for pigments and extenders Part 25: Comparison of the colour, in full- shade systems, of white, black and coloured pigments Colorimetric method. ENISO5911:2000 2 ISO 1042:1998, Laboratory glassware One-mark volumetric flasks. ISO 3696:1987, Water for analytical laboratory use Specification and test

35、methods. ISO 15528:2000, Paints, varnishes and raw materials for paints and varnishes Sampling. 3 Term and definition For the purposes of this part of ISO 591, the following term and definition apply. 3.1 titanium dioxide pigment pigment consisting essentially of titanium dioxide (TiO 2 ) of the ana

36、tase or the rutile crystal structure, as determined by X-ray examination 4 Classification 4.1 Types This part of ISO 591 covers two types of titanium dioxide pigment, as follows: Type A: Anatase type Type R: Rutile type 4.2 Grades The pigments are further classified into the following grades: Grade

37、A1 Grade A2 Type A Grade R1 Grade R2 Grade R3 Type R 5 Required characteristics and associated tolerances 5.1 Appearance The material shall be in the form of a soft, dry powder or in such a condition that it may be readily reduced thereto by crushing under a palette knife, without any grinding actio

38、n. 5.2 Other characteristics 5.2.1 For titanium dioxide pigments complying with this part of ISO 591, the essential requirements are specified in Table 1 and the conditional requirements are listed in Table 2. The conditional requirements shall be specified by agreement between the interested partie

39、s. The requirement for matter volatile at 105 C after preconditioning in Table 2 shall only apply if this characteristic is explicitly specified by the interested parties or in a contract. ENISO5911:2000 3 5.2.2 The agreed reference pigment referred to in Table 2 shall comply with the requirements o

40、f Table 1. Table 1 Essential requirements Requirement depending on type and grade Type A Type R Characteristic A1 A2 R1 R2 R3 Method of test Titanium dioxide content % (by mass), min. 98 92 97 90 80 See clause 7 Matter volatile at 105 Cat point of acceptance % (by mass), max. 0,5 0,8 0,5 To be agree

41、d between the interested parties ISO 787-2 Matter soluble in water % (by mass), max. 0,6 0,5 0,6 0,5 0,7 ISO 787-3 a R esid ueo ns iev e( 45 m) % (by mass), max. 0,1 0,1 0,1 0,1 0,1 ISO 787-18 or other agreed method a If necessary, a coagulation agent may be used. Table 2 Conditional requirements Re

42、quirement depending on type and grade Type A Type R Characteristic A1 A2 R1 R2 R3 Method of test Colour Similar to that of the agreed reference pigment (see 5.2.2) ISO 787-1 or ISO 787-25 a Scattering power To be agreed between the interested parties ISO 787-24 Matter volatile at 105 C after 24 h pr

43、econditioning at (23 2) C and (50 5) % relative humidity % (by mass), max. b 0,5 0,8 0,5 1,5 2,5 ISO 787-2 pH of aqueous suspension ISO 787-9 Oil absorption value Similar to that of the agreed reference pigment (see 5.2.2) ISO 787-5 Resistivity of aqueous extract Similar to that of the agreed refere

44、nce pigment (see 5.2.2) Similar to that of the agreed reference pigment (see 5.2.2) ISO 787-14 a By agreement only. b See 5.2.1. ENISO5911:2000 4 6 Sampling Take a representative sample of the product to be tested, as described in ISO 15528. 7 Determination of titanium dioxide content 7.1 General Fo

45、r the determination of the titanium dioxide content, two methods (A and B) are provided. In cases of dispute, either of the methods may be used as the referee method, by agreement between the interested parties. Method A uses aluminium metal as the reducing agent. It is suitable for individual deter

46、minations and for routine analysis. Method B uses chromium(II) chloride and zinc amalgam as reducing agents and can be automated. It is particularly suitable as a routine method. 7.2 Method A: Aluminium reduction method 7.2.1 Principle A test portion of the dried sample is dissolved in sulfuric acid

47、, with the addition of ammonium sulfate. The titanium(IV) is then reduced to titanium(III) with aluminium under a carbon dioxide atmosphere. The solution is then titrated with ammonium iron(III) sulfate, using ammonium thiocyanate as indicator. 7.2.2 Reagents During the analysis, use only reagents o

48、f recognized analytical grade and only water of at least grade 3 purity as defined in ISO 3696. WARNING Use the reagents in accordance with the appropriate health and safety regulations. 7.2.2.1 Hydrochloric acid, concentrated, approximately 37 % (by mass), 1,19 g/ml. 7.2.2.2 Sulfuric acid, concentrated, approximately 96 % (by mass), 1,84 g/ml. 7.2.2.3 Ammonium sulfate. 7.2.2.4 Sodiu