1、BRITISH STANDARDBS EN ISO 10601:2008Micaceous iron oxide pigments for paints Specifications and test methodsICS 87.060.10g49g50g3g38g50g51g60g44g49g42g3g58g44g55g43g50g56g55g3g37g54g44g3g51g40g53g48g44g54g54g44g50g49g3g40g59g38g40g51g55g3g36g54g3g51g40g53g48g44g55g55g40g39g3g37g60g3g38g50g51g60g53g4
2、4g42g43g55g3g47g36g58BS EN ISO 10601:2008This British Standard was published under the authority of the Standards Policy and Strategy Committee on 31 May 2007 BSI 2008ISBN 978 0 580 60705 9National forewordThis British Standard is the UK implementation of EN ISO 10601:2008. It is identical with ISO
3、10601:2007. It supersedes BS ISO 10601:2007 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee STI/1, Pigments.A list of organizations represented on this committee can be obtained on request to its secretary.This publication does not purport to include
4、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/corrigenda issued since publicationDate Comments29 August 2008 This corrigendum renumbers BS ISO 10601:2007 as BS
5、EN ISO 10601:2008EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 10601May 2008ICS 87.060.10English VersionMicaceous iron oxide pigments for paints - Specifications andtest methods (ISO 10601:2007)Pigments doxyde de fer micac pour peintures -Spcifications et mthodes dessai (ISO 10601:2007)Eisen
6、glimmer-Pigmente fr Beschichtungsstoffe -Anforderungen und Prfverfahren (ISO 10601:2007)This European Standard was approved by CEN on 12 April 2008.CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of
7、a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on application to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version
8、 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 status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark,
9、 Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEURO
10、PISCHES KOMITEE FR NORMUNGManagement Centre: rue de Stassart, 36 B-1050 Brussels 2008 CEN All rights of exploitation in any form and by any means reservedworldwide for CEN national Members.Ref. No. EN ISO 10601:2008: EForeword The text of ISO 10601:2007 has been prepared by Technical Committee ISO/T
11、C 35 “Paints and varnishes” of the International Organization for Standardization (ISO) and has been taken over as EN ISO 10601:2008 by Technical Committee CEN/TC 298 “Pigments and extenders” the secretariat of which is held by DIN. This European Standard shall be given the status of a national stan
12、dard, either by publication of an identical text or by endorsement, at the latest by November 2008, and conflicting national standards shall be withdrawn at the latest by November 2008. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent righ
13、ts. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. 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, Cyprus, Cz
14、ech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of ISO 10601:20
15、07 has been approved by CEN as a EN ISO 10601:2008 without any modification. BS EN ISO 10601:2008iiiContents Page Introduction v 1 Scope . 1 2 Normative references . 1 3 Terms and definitions. 2 4 Classification. 2 5 Required characteristics and their tolerances 2 6 Sampling 3 7 Assessment of thin-f
16、lake content . 3 8 Test report . 4 BS EN ISO 10601:2008blankvIntroduction Micaceous iron oxide pigments were previously included in ISO 1248 (classified in the colour group “grey with metallic sheen”) but are explicity excluded from the revised edition published in 2006. In this revised edition of I
17、SO 10601, the requirements for micaceous iron oxide pigment have been defined more clearly and relate to an essentially lamellar particle shape. Micaceous iron oxide pigments can vary in composition, particle size range, and particle shape depending on whether they are produced synthetically or, if
18、a refined natural oxide, on the location where the ore was mined. The primary use of micaceous iron oxide is in protective coatings for steelwork, and for optimum performance the pigment should have a high content of thin flake-like particles. The protective action is ascribed to the close packing o
19、f pigment platelets within the paint film, forming overlapping layers that lie roughly parallel to the substrate. This impedes penetration of corrosion promoters, reduces ultra-violet degradation of the binder and improves film strength. For less critical requirements, micaceous iron oxide pigment w
20、ith a lower content of thin flakes may be acceptable. Therefore in this International Standard, micaceous iron oxide pigments are classified into two groups according to their thin-flake content as determined by microscopic examination (see Table 1). For the purposes of this International Standard,
21、pigments with a lamellar-particle content below 50 % are not considered to be “micaceous” or classified as “lamellar”. BS EN ISO 10601:2008blank1Micaceous iron oxide pigments for paints Specifications and test methods 1 Scope This International Standard specifies the requirements and corresponding t
22、est methods for manufactured and natural micaceous iron oxide (MIO) pigments, in dry form, used primarily in protective coatings for steelwork. In accordance with current practice, the general requirements for micaceous iron oxide pigments have been sub-divided to give a) those requirements that are
23、 essential (see Table 2) and b) those requirements that are conditional upon prior agreement between the interested parties (see Table 3). In certain instances, reference may be made to an agreed reference pigment. 2 Normative references The following referenced documents are indispensable for the a
24、pplication 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 150, Raw, refined and boiled linseed oil for paints and varnishes Specifications and methods of test ISO 78
25、7-2, General methods of test for pigments and extenders Part 2: Determination of matter volatile at 105 C ISO 787-3, General methods of test for pigments and extenders Part 3: Determination of matter soluble in water Hot extraction method ISO 787-5, General methods of test for pigments and extenders
26、 Part 5: Determination of oil absorption value ISO 787-9, General methods of test for pigments and extenders Part 9: Determination of pH value of an aqueous suspension ISO 1248, Iron oxide pigments Specifications and methods of test ISO 3549, Zinc dust pigments for paints Specifications and test met
27、hods ISO 15528, Paints, varnishes and raw materials for paints and varnishes Sampling BS EN ISO 10601:20082 3 Terms and definitions For the purposes of this document, the following terms and definitions apply. 3.1 micaceous iron oxide pigment refined mineral (also known as specular haematite) or a m
28、anufactured product consisting essentially of iron(III) oxide, Fe2O3, that is grey in colour with a metallic sheen and consists essentially of particles having lamellar form 4 Classification In this International Standard, micaceous iron oxide pigments are classified by grades according to their thi
29、n-flake content as shown in Table 1 and by types according to their residue on sieve as shown in Table 2. Thin-flake micaceous iron oxide particles are defined as having a thickness such that they appear as sharply defined red translucent platelets when viewed under an optical microscope by transmit
30、ted light, i.e. with the light source behind the specimen under examination (see test method in Clause 7). Table 1 Lamellar classification Grade Thin-flake content % A 65 B 50 to 65 5 Required characteristics and their tolerances For micaceous iron oxide pigments complying with this International St
31、andard, the essential requirements are specified in Tables 1 and 2 and the conditional requirements are referred to in Table 3. The reference pigment and the conditional requirements set out in Table 3 shall be the subject of agreement between the interested parties. The reference pigment shall comp
32、ly with the requirements given in Table 1 (grade A or B) and Table 2 (type 1, 2 or 3). BS EN ISO 10601:20083Table 2 Essential requirements Characteristic Requirement for MIO of type Test method 1 2 3 Iron content, expressed as iron(Ill) oxide (Fe2O3) (determined on the pigment after drying at 105 C)
33、 % (by mass) min. 85 ISO 1248aMatter volatile at 105 C % (by mass) max. 0,5 ISO 787-2 Matter soluble in water (hot-extraction method) % (by mass) max. 0,5 ISO 787-3 63 m max. 5 5 but u 15 15 but u 35 Residue on sieve, % (by mass) 105 m max. 0,1 max. 0,1 max. 0,1 ISO 3549 aThe use of 60 ml of 37 % (b
34、y mass) hydrochloric acid, approximately 1,19 g/ml, and 0,5 g of potassium chlorate is recommended to facilitate dissolution of the sample. Table 3 Conditional requirements Characteristic Requirement Test method pH of aqueous suspension Shall not differ by more than 1 pH unit from that of the agreed
35、 reference pigment ISO 787-9 Oil absorption value Shall not differ by more than 15 % from that of the agreed reference pigment ISO 787-5 Total calcium, expressed as calcium oxide, % (by mass) To be agreed between the interested parties ISO 1248 6 Sampling Take a representative sample of the product
36、to be tested, as described in ISO 15528. 7 Assessment of thin-flake content 7.1 Reagent 7.1.1 Refined linseed oil, complying with the requirements of ISO 150. 7.2 Apparatus 7.2.1 Glass microscope slide, approximately 25 mm 75 mm 1 mm, and cover slip. 7.2.2 Glass rod, approximately 100 mm long and 5
37、mm in diameter, with rounded end. 7.2.3 Optical microscope, capable of 200 magnification, with a 20 objective lens and fitted with high-intensity sub-stage illumination. BS EN ISO 10601:20084 7.3 Procedure Prepare a microscope slide (7.2.1) by one of the following methods: a) Place a few milligrams
38、of a representative sample of the dry pigment (see Clause 6) on the glass slide. Add a few drops of refined linseed oil (7.1.1) and gently incorporate the pigment into the oil using the glass rod (7.2.2). Place the cover slip over the pigment/oil dispersion and position on the microscope stage. b) S
39、pread a few milligrams of the sample of the dry pigment on the glass slide and examine it in the way described below without adding linseed oil. Adjust the intensity of the light below the slide to the highest practical level. Focus sharply at 200 magnification and scan the slide until a field of vi
40、ew is obtained that is considered to be representative, and in which at least 50 particles can be seen. Thin-flake micaceous iron oxide particles appear as sharply defined red translucent platelets, whilst thicker and/or granular particles appear as black shapes. Assess the proportion of red to blac
41、k particles and classify as the appropriate grade (see Table 4). Table 4 Thin-flake content Grade Appearance Thin-flake content % A High proportion of red particles 65 B Considerable proportion of red particles 50 to 65 If the thin-flake content is not obvious, count the number of red and black part
42、icles in a group of at least 50 particles. A frame-image device is recommended to assist in this operation. Repeat the count on a duplicate slide and calculate the mean percentage of red particles. Typical photographs of the two grades of micaceous iron oxide pigment viewed with an optical microscop
43、e by transmitted light are shown in Figures 1 a) and 1 b). For comparison purposes, scanning electron photomicrographs of the two grades are shown in Figures 2 a) and 2 b). 8 Test report The test report shall contain at least the following information: a) all details necessary to identify the produc
44、t tested; b) a reference to this International Standard (ISO 10601); c) the results of the tests and whether or not the product complies with the relevant specification limits; d) any deviation from the test methods specified; e) the date(s) of the test(s). BS EN ISO 10601:20085a) Grade A Proportion
45、 of lamellar particles (red): 65 % b) Grade B Proportion of lamellar particles (red): 50 % to 65 %Figure 1 Micaceous iron oxide viewed with an optical microscope by transmitted light a) Grade A Proportion of lamellar particles: 65 % b) Grade B Proportion of lamellar particles: 50 % to 65 % Figure 2
46、Micaceous iron oxide viewed with a scanning electron microscope BS EN ISO 10601:2008BS EN ISO 10601:2008BSI Group Headquarters389 Chiswick High Road,London W4 4AL, UKTel +44 (0)20 8996 9001Fax +44 (0)20 8996 Standards Institution (BSI)BSI is the independent national body responsible for preparing B
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