1、BRITISH STANDARD Metallic and other inorganic coatings Measurement of mass per unit area Review o1 gravimetric and chemical analysis methods The European Standard EN IS0 101 11:2001 has the status of a British Standard ICs 25.220.40: 25.220.99 BS EN IS0 101 11:2002 BS ENISO 10111:2002 Amd. No. Natio
2、nal foreword Date Comments This British Standard, having been prepared under the direction of the Sector Policy and Strategy Committee for Materials and Chemicals, was published under the authority of the Standards Policy and Strategy Committee on 15 January 2002 This British Standard is the officia
3、l English language version of EN IS0 101 11:2001. It is identical with IS0 101 11:2000. The UKparticipation in its preparation was entrusted to Technical Committee STI/37, Method of test for metallic and related inorganic coatings including corrosion tests, which has the responsibility to: - - aid e
4、nquirers 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 international and European developments and promulgate them in the UK. - A list of organizati
5、ons represented on this committee can be obtained on request to its secretary. Cr oss-r e fer enc e s 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 Standa
6、rds Correspondence Index?, 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 Standar
7、d does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, the EN IS0 title page, the EN IS0 foreword page, the IS0 title page, pages ii toiv, pages 1 to 15, the Annex ZA page, an inside back cover and a back cover. The
8、 BSI copyright date displayed in this document indicates when the document was last issued. O BSI 15 January 2002 ISBN O 580 38844 I EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN IS0 10111 December 2001 ICs 25.220.20; 25.220.40 English version Metallic and other inorganic coatings - Measureme
9、nt of mass per unit area - Review of gravimetric and chemical analysis methods (IS0 1 O1 1 1 :2000) Revtements mtalliques et autres revtements inorganiques - Mesurage de la masse surfacique - Prsentation des mthodes danalyse gravimtrique et chimique (IS0 10111:2000) Metallische und andere anorganisc
10、he berzge - Messung der flchenbezogenen Masse - bersicht ber gravimetrische und chemische Analyseverfahren (IS0 1 o1 11 :2000) This European Standard was approved by CEN on 16 November 2001 CEN members are bound to comply with the CENKENELEC Internal Regulations which stipulate the conditions for gi
11、ving this European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such national standards may be obtained on application to the Management Centre or to any CEN member. This European Standard exists in three official versi
12、ons (English, French, German). A version in any other language made by translation under the responsibility of a CEN member into its own language and notified to the Management Centre has the same status as the official versions. CEN members are the national standards bodies of Austria, Belgium, Cze
13、ch Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. EUROPEAN COMMITTEE FOR STANDARDIZATION EUROPISCHES KOMITEE FR NORMUNG COMIT EUROPEN DE NORMALISATION Management Centre: rue de St
14、assart, 36 B-1050 Brussels O 2001 CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Members. Ref. No. EN IS0 10111:2001 E EN IS0 10111:2001 Foreword The text of the International Standard from Technical Committee ISO/TC 107 “Metallic and other inorganic
15、coatings“ of the International Organization for Standardization (ISO) has been taken over as an European Standard by Technical Committee CEN/TC 262 “Metallic and other inorganic coatings“, the secretariat of which is held by BSI. This European Standard shall be given the status of a national standar
16、d, either by publication of an identical text or by endorsement, at the latest by June 2002, and conflicting national standards shall be withdrawn at the latest by June 2002. According to the CENKENELEC Internal Regulations, the national standards organizations of the following countries are bound t
17、o implement this European Standard: Austria, Belgium, Czech Republic, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and the United Kingdom. Endorsement notice The text of the International Standard IS0 1 O1 1
18、1 :2000 has been approved by CEN as a European Standard without any modification. NOTE Normative references to International Standards are listed in annex ZA (normative) INTERNATIONAL STANDARD EN IS0 10111:2001 IS0 10111 First edition 2000-06-1 5 Metallic and other inorganic coatings - Measurement o
19、f mass per unit area - Review of gravimetric and chemical analysis methods Revfemenfs mfalliques ef aufres revfemenfs inorganiques - Mesurage de la masse surfacique - Prsenfafion des mfhodes danalyse gravimfrique ef chimique Reference number IS0 1 O1 11 :2000(E) EN IS0 10111:2001 II EN IS0 10111:200
20、1 Contents Page Foreword . iv 1 Scope 1 2 Normative references 2 3 Terms and definitions . 2 4 Principle 3 5 Special equipment . 3 6 7 Measurement of coated area 4 8 Determination of mass of coating by chemical analysis . 4 9 Gravimetric determination of mass of coating . 5 10 Calculations 6 Annex A
21、 (normative) Reagents for selective dissolution of metal layers . 7 Bibliography 13 Preparation of test specimen . 3 . 111 EN IS0 10111:2001 Foreword IS0 (the International Organization for Standardization) is a worldwide federation of national standards bodies (IS0 member bodies). The work of prepa
22、ring International Standards is normally carried out through IS0 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 committee. International organizations, governmental and non-governmental, in l
23、iaison with ISO, also take part in the work. IS0 collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISOAEC Directives, Part 3. Draft Internatio
24、nal 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 International Sta
25、ndard may be the subject of patent rights. IS0 shall not be held responsible for identifying any or all such patent rights. International Standard IS0 1 O1 11 was prepared by Technical Committee ISO/TC 107, Mefallic and ofher inorganic coafings, Subcommittee SC 2, Tesf mefhods. Annex A forms a norma
26、tive part of this International Standard. iv EN IS0 10111:2001 Metallic and other inorganic coatings - Measurement of mass per unit area - Review of gravimetric and chemical analysis methods WARNING - The methods referred to in this International Standard can involve hazardous materials, operations
27、and equipment. This International Standard does not purport to address all of the safety problems associated with its use. It is the responsibility of whoever uses this International Standard to consult and establish appropriate safety and health practices and determine the applicability of regulato
28、ry limitations prior to its use. 1 Scope 1.1 General This International Standard outlines general methods for determining the average surface density over a measured area of anodic oxide or of a coating deposited autocatalytically, mechanically, by chemical conversion, by electrodeposition, by hot d
29、ip galvanizing and by vacuum using gravimetric and other chemical analysis procedures that have attained some degree of national or international standardization. A variety of procedures are described and include: - gravimetric procedures for chemical or electrochemical dissolution of the coating or
30、 the substrate to determine the coating surface density; - analytical procedures that utilize dissolution of the coating for photometric or volumetric determination of the coating surface density; - non-destructive instrumental physical analysis of the coating to determine the surface density. With
31、the exception of the gravimetric method described in IS0 3892:-, this International Standard does not give the measurement uncertainties of the methods cited. 1.2 Sources The stripping methods cited in annex A are described in specifications in the open literature or have been used routinely by at l
32、east one laboratory. 1.3 Restrictions The procedures described can be used for many coating-substrate combinations. They cannot be used where neither the coating nor substrate material can be completely removed, one from the other by chemical or physical means and there is a constituent common to bo
33、th that is not readily separated (e.g. nickel phosphorus alloy on nickel). NOTE The measurement of very thin coatings on very small pieces can result in a reduction in accuracy and a lack of repeatability. Several measurements using a combination of different procedures on similar samples might over
34、come this situation. 1 EN IS0 10111:2001 1.4 Limitations In principle, the gravimetric procedures can be used to measure very thin coatings or to measure coatings over small areas, but not thin coatings over small areas. The limits depend on the required accuracy; e.g., 2,5 mg/cm2 of coating might r
35、equire 1 cm2, but 0,l mg/cm2 of coating would require 25 cm2 to obtain 2,5 mg of coating. These limitations do not apply to the chemical analysis methods. The gravimetric method does not indicate the presence of bare spots or sites with thicknesses lower than the specified minimum in the measuring a
36、reas. In addition, the single value obtained from each measuring area is the mean thickness of that area. There can be no further mathematical analysis of this single value, for example, for statistical process control purposes. 2 Normative references The following normative documents contain provis
37、ions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revisions of, any of these publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate
38、 the possibility 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 IS0 and IEC maintain registers of currently valid International Standards. IS0 2079:1981, Surface fre
39、afmenf and mefallic coafings - General classificafion of ferms. IS0 2080: 1981, Elecfroplafing and relafed processes - Vocabulary. IS0 2081 :I 986, Mefallic coafings - Elecfroplafed coafings of zinc on iron or sfeel. IS0 2082:1986, Mefallic coafings - Elecfroplafed coafings of cadmium on iron or sfe
40、el. IS0 2093:1986, Elecfroplafed coafings of fin - Specificafion and fesf mefhods. IS0 2106:1982, Anodizing of aluminium and ifs alloys - Deferminafion of mass per unif area (surface densify) of anodic oxide coafings - Gravimefric mefhod. IS0 3892:-), Conversion coafings on mefallic maferials - Defe
41、rminafion of coafing mass per unif area - Gravimefric mefhods. IS0 4522-1 :1985, Mefallic coafings - Tesf mefhods for elecfrodeposifed silver and silver alloy coafings - Parf 1: Deferminafion of coafing fhickness. IS0 4524-1 :1985, Mefallic coafings - Tesf mefhods for elecfrodeposifed gold and gold
42、alloy coafings - Parf 1: Deferminafion of coafing fhickness. IS0 7587: 1986, Elecfroplafed coafings of fin-lead alloys - Specificafion and fesf mefhods. IS0 8407: 1991, Corrosion of mefals and alloys - Removal of corrosion producfs from corrosion fesf specimens. 3 Terms and definitions For the purpo
43、ses of this standard, the terms and definitions given in IS0 2079 and IS0 2080 apply. 1) To be published. (Revision of IS0 3892:1980) 2 EN IS0 10111:2001 4 Principle The mass of a coating over a measured area is determined by: a) weighing the test specimen before and after dissolving the coating in
44、a reagent or electrolyte that does not attack the substrate or b) weighing the coating after dissolving the substrate in a reagent that does not attack the coating or c) dissolving both the coating and the substrate, or the coating alone, and quantitatively analysing the resulting solution. The surf
45、ace density of the coating is calculated from the mass and area measurements and its thickness is based on the mass, area and density of the coating material. 5 Special equipment Certain specialized chemical, electrochemical and chemical analysis equipment is required for some of the specific method
46、s referred to in Table A.1. (See clauses 8 and 9.) 6 Preparation of test specimen 6.1 Size The specimen shall be large enough to permit area and mass measurement of adequate accuracy. (See clauses 8 and 9.) 6.2 Shape The shape of the test specimen should be such that the surface area can be readily
47、measured without difficulty. A rectangular or circular test specimen is usually suitable. 6.3 Edge condition If the area to be measured is small and has to be known accurately, the edges may need to be dressed to remove smeared coating, to remove loose burrs and to provide well-defined and (for rect
48、angles) straight edges. This should be considered for areas less than 100 mm2. One method of dressing the edges of a rectangular specimen involves clamping the specimen between two plastic or metal blocks with the edge of the specimen flush with the edges of the blocks and then grinding and polishin
49、g the edges metallographically. 6.4 Heat treatment If the substrate has to be dissolved in such a way as to leave the coating intact, it may be desirable to first treat the test specimen so that the coating will not curl up tightly or fall apart. Some gold deposits of 13 mg/cm2 (e 0,9 pm) will fall apart when their substrates are dissolved, but will support themselves after heat treatment at 120 OC for 3 h. If the thickness of a coating (instead of its surface density) is being determined, a heat treatment that could change the density of the coating material shall no
