1、:I- BS EN IS0 1538 : 1995 -. - A- BRITISH STANDARD Metallic coatings - Thioacetamide corrosion test (TM test) The European Standard EN IS0 4538 : 1994 has the status of a British Standard _. _ - 3; -* CEN EN*IS0*4538 95 = 3404589 0099859 4T8 -1 BS 5466: Part 4 : 1979 Contents National foreword Coope
2、rating organizations Methods O. Introduction 1. Scope and field of application 2. Reference J. Pincide Page Inside front cover 4. Reagents Back cover 5. Apparatus 6. Test specimens 7. Operating procedure 8. Treatment of test specimens after test 9. Evaluation of results 1 1 1 10. Test report Page 1
3、1 1 2 2 2 2 Nat ional foreword This Part of BS 5466 is published under the direction of the Surface Coatings (other than Paints) Standards Committee. h 1994 the European Codttee for standardization (CEN) accepted Is0 438 : 1979% Standard EN the European Standard this British Standard is re Some term
4、inology and certain conventions are not identical with those used in British Standards; attention is especially drawn to the following. Wherever the words International Standard appear, referring to this publication, they should be interpreted as British Standard. 4538 : 1994. As a consequence Of hP
5、lementinq numbered as Bs EN Is0 4538 : 1995 and m3 reference - to Bs5466: Part4 should be read as a reference to BSENISO4538: 1995. It is identical with IS0 4538-1978 Metallic coatings - Thioacetamide corrosion test (TAA test), which has been prepared, with the active participation and approval of t
6、he United Kingdom, by Sub-committee 7, Corrosion tests, of Technical Committee 107, Metallic and other non-organic coatings, of the International Organization for Standardization (ISO). It is intended to publish further Parts as the international work progresses. Terminology and conventions. The tex
7、t of the International standard has been approved as suitable for publication, without deviation, as a Britijh Standard. Cross-reference International standard IS0 1462-1973 Corresponding British Standard BS 3745 : 1970 The evaluation of results of accelerated corrosion tests on meta!lic coatings (T
8、echnically equivalent) I -: . A EUROPEANsrANDARD NORME EUR0PEE?E EUROP NORM ENIS04538 January 1995 ICs 2.5.220.40 Descriptors. Metal coatings, corrosion tts English version Metallic coatings - Thioacetamide corrosion test (TAA test) (Is0 4538 : 1978) Revtements mtalliques - Essai de corrosion la thi
9、oactamide (Essai TAA) (IS0 4538 : 1978) Metaische berzge - thioacetami-Korrosionsprfung (TM-Versuch) (IS0 4538 : 1978) This European Standard was approved by CEN on 1991-10-03. CEN members are bound to comply with the CENKENELEC Internal Regdations which stipulate the conditions for giving this Euro
10、pean Standard the staaic of a national standard without any aiteration Upto-date lists and bibliogrqhicai references concerning such national standards may be obtained on application to the Central Secretariat or to any CEN member. This European Standard exisis in three official versions (English, F
11、rench, 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 Centrai Secretanat has the same status as the officiai versions. CEN membeis are the national standards bodies of Austria, Belgium, Denmark, Finland,
12、 France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Coriiriuttee for Standardization Comit Europen de Normalisation Europisches Komitee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Bru
13、ssels O 1995 Cop* rcscned to CEN members Ref. No. EN IS0 4538 : 1995 E Page 2 EN IS0 4538 : 1995 Foreword This European Standard has been taken over by the Technical Committee CENEC 262, Protection of metallic maten b) the appearance after removing superficial non- adherent corrosion products; c) th
14、e number and distribution of corrosion defects, .e. coloured spots, pits, cracks, blisters, etc. These may conveniently be assessed by methods such as that specified in IS0 1462; d) the time of inspection when the first signs of cor- rosion were observed. 10 TEST REPORT 10.1 The test report shall in
15、dicate the outcome of the test according to the criteria for evaluation of results prescribed for the test. Report the result obtained for each test specimen tested and, when appropriate, the average for a group of replicate test specimens. The test report may, if required, be accompanied by photogr
16、aphic records of the tested specimens. 7.5 Close the test chamber and maintain at 20+ 5C 10.2 The test report shall contain information about the (See 5.4) Take precautions against sudden changes or conduct of the test. This information may vary according local differences of temperature to the purp
17、oses of the test and to the directions prescribed 2 *.- - - CEN EN*ISO*4538 75 3404587 0097864 865 H 1- .- BS 5466 : Part 4 : 1979 for it, but a general list of the details likely to be required is as follows : a) the specification of the basis material tested; b) the type of coating, with an indica
18、tion of its surface finish; cl the number of test specimens, of each coating or product subjected to the test, d) the dimensions and shape of the test specimens and the nature and area of the surface tested; e) the preparation of the test specimens, including any cleaning treatment applied and any p
19、rotection given to edges or other special areas; f) the method, if any, used to clean the test specimens after the test with, when appropriate, an indication of the loss of mass resulting from the cleaning operation; 9) the temperature readings within the exposure zone of the test chamber; h) the ex
20、posure period for each cycle and the number of cycles; i) an indication of the precautions taken to verify that all the requirements stated in this International Standard have been met; i) the behaviour of any reference panels placed in the test chamber at the same time as the test specimens; k) the
21、 results of all inspections. 3 _ _ _- j; -_ CEN EN*IS0*4538 95 3404589 00998b5 7TL - - Standards publications referred to See national foreword - - -G-S -_a_ CEN ENmISOa4-538 95 3404589 0099866 638 -1 Arnd. No. - - Date of issue This British Standard. having been prepared under the direaion of the S
22、urface Coatings (other than Paints) Standards Committee, was published under the authority of the Executive Board on 31 January 1979. Q British Standards Institution, 1979 ISBN O 580 10504 O Copyright Users of British Standards are reminded that copyright subsists in all BSI publications. No part of
23、 this publication may be reproduced in any form without the prior permission in writing of BSI. This does not preclude the free use, in the course of implementing the standard, of necessary details such as symbols and size, type or grade designations. Enquiries should be addressed to the Publication
24、s Manager. 101 Pentonville Road, London NI 9ND lTelephone01-837 8801; Telex 23218). BS 5466 : Part 4 : 1979 IS0 4538-1978 Contract rcquiraments Attention is drawn to the fact that this British Standard does not purport to include all the necessary provisions of a contract. Revision of British Standa
25、rds British Standards are revised, when necessary, by the issue either of amendment slips or of revised editions. It 5 important that users of British Standards should ascertain that they are in possession of the latesi amendments or editions. The following ES1 references relate to the work on this
26、standard Committee referena SRCI15 Draft for comment 76/54495 DC Cooperating organizations The Surface Coatings (other than Paints) Standards Committee. under whose direction this British Standard was prepared, consists of representatives from the following Government department and scientific and i
27、ndustrial organizations. Aluminium Federation Assay Offices Committee of Great Britain Association of Metal Sprayers British Jewellery and Giftware Federation Ltd. British Metal Finishing Suppliers Associarion BNF Metals Technology Centre British Steel Industry Chemical Industries Association Copper
28、 Development Association Electricity Supply Industry in England and Wales Electronic Engineering Association Engineering Equipment Users Association Greater London Council British Industrial Fasteners Federation Institute of Metal Finishing Institute of Sheet Metal Engineers Institute of Vitreous En
29、amellers Metal Finishing Association Ministry of Defence Society of Motor Manufacturers and Traders Ltd Zinc Development Association Motor Cycle Association of Great Britain Ltd. Vitreous Enamel Development Council The organizations marked with an asterisk in the above list, together with the follow
30、ing, were directly represented on the committee entrusted with the preparation of this British Standard Association of Manufacturers of Domestic Electrical Appliances British Anodising Association City of London Polytechnic Motor industn/ Research Association Non-Destructive Testing Trade Associatio
31、n Telecommunication Engineering and Manufacturing Association Individual company t- British Standards Institution . 2 Park Street London WIA 2BS . Telephone 01-629 9000 - Telex 266933 7901 -2 k-B Amendment No. 1 published and effective from 15 May 1995 to BS 5466 : Part 4: 1979 Methods for corrosion
32、 testing of metallic coatings Part 4. Thioacetamide test (TAA test) NOTE. The European Committee for Standardlzation (CEN) has accepted IS0 4538 : 1978 as a European Standard designated as EN IS0 4538 : 1994. ThLs amendment implements EN IS0 4538 : 1994 as a British Siandard in the RS EN senes. Impl
33、ementation of European Standard National foreword At the end of paragraph 1 insert the following new paragraph in 1994 the European Committee for Standardization (CEN) accepted IS0 4538 : 1979 as European Standard EN IS0 4538 : 1994. As a consequence of implementing the European Standard this Britis
34、h Standard is renumbered as BS EN IS0 4538 : 1995 and any reference to BS 5466 : Part 4 should be read as a reference to BS EN IS0 4538 : 1995. New EN title page and foreword Immediately &er the national foreword insert the attached new EN tite page and foreword. AMD 8478/May 1995 950m.35k-DP Produc
35、t code65000491940 BRITISH STANDARD Metallic coatings - BS EN IS0 4538 : 1995 Thioacetamide corrosion I test (TAA test) I I The European Standard EN IS0 4538 : 1994 has the status of a British Standard - CEN EN*ISO*4538 95 3404587 0099869 347 II EmOPW STANDARD NORME EUROPENNE , EN IS0 4538 EUROPmHE N
36、ORM January 1995 ICs 25.220.10 Descriptors- Metal coatings, corrosion tesis English veision Metallic coatings - Thioacetamide corrosion test flAA test) (IS0 4538 : 1978) Revtements mtalliques - Essai de corrosion la thioactamide (Essai TAA) (IS0 4538 : 1978) MetaJlische berzge - hioacetamid-Korrosio
37、nsprfmg (“AA-Versuch) (IS0 4538 : 1978) This European Standard was approved by CEN on 1994-10-03. CEN members are bound to comply with the CENEENELEC internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to-
38、date lists and bibiiographical 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 officiai versions (English, French, German). A version in any other language made by translation under t
39、he responsibility of a CEN member into its own language and notified to the Centrai Secretariat has the same status as the officiai versions. CEN members are the national standards bodies of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy, Luxembourg, Netherlands
40、, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CEN European Committee for Standardization Comit Europen de Normalisation Europisches Kontee fr Normung Central Secretariat: rue de Stassart 36, B-1050 Brussels O 1995 Copyright reserved to CEN members Ref. No. EN IS0 4538 : 1995 E -
41、 _ -+- CEN EN*IS0*4538 95 3404589 0099870 Ob9 B - Page 2 EN IS0 4538 : 1995 -7 - Foreword This European Standard has been taken over by the Technical Committee CENC 262, Protection of metallic materiais against corrosion, fkom the work of ISOl 107, Metaic and other inorganic coatings, of the Interna
42、tional Organization for Standanbalion Tlus document was submitted to the formal vote and was adopted by CEN as a European Standard. 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 July 1995, and c
43、onflicting nationai standards shall be withdrawn at the iaest by July 1995. In accordance with the CENKENELEC Internai Regulations, the following countries are bound to implement this European Standard. Austria, Belgium, Denmark, Finiand, France, Germany, Greece, Iceland, Lrehd, ltaiy, Luxembourg, Netherlands, Norway, Portuga, Spain, Sweden, Switzerland and United Kingdom. (IW.
