SOUTH AFRICAN NATIONAL STANDARD - Skylight

1 ICS SANS 121:2000. ISBN 0-626-15424-3 Edition ISO 1461:1999. Edition 2. Any reference to SABS ISO 1461 is deemed to be a reference to this STANDARD (Government Notice No. 1373 of 8 November 2002). SO UTH AFRICAN NATIO NAL STANDARD . Hot dip galvanized coatings on fabricated iron and steel articles Specifications and test methods This NATIONAL STANDARD is the identical implementation of ISO 1461:1999 and is adopted with the permission of the international Organization for standardization . Published by Standards SOUTH Africa 1 dr lategan road groenkloof private bag x191 pretoria 0001. tel: 012 428 7911 fax: 012 344 1568 international code + 27 12. Standards SOUTH Africa SANS 121:2000. Edition ISO 1461:2002.

2 Edition 2. Table of changes Change no. Date Scope Tech. corr. 1 1999 Corrected to insert the SABS certification m ark. Nat. am dt 1 2000 Am ended to change the certification m ark to the m ark for specific properties. In current edition, the certification m ark has been rem oved. Abstract Spe cifies the general properties of and m ethods of test for coatings applied by hot dipping in zinc (containing not m ore than 2 % of other m etals) on fabricated iron and steel articles. K eyw ords coating s, definition s, galvanizing, hot-dip galvanizing, iron, m etal coating s, protective coating s, specification s, steels, testing, zinc. N ational fore w ord This SOUTH AFRICAN STANDARD was approved by NATIONAL Com m ittee StanSA SC , Hot-dip coating s, in accordance with procedures of Standa rds SOUTH Africa, in com plian ce with annex 3 of the W TO /TBT agreem ent.

3 This SAN S edition is technically identical to SAB S ISO 1461:2000. international ISO. STANDARD 1461. Second edition 1999-02-01. Hot dip galvanized coatings on fabricated iron and steel articles Specifications and test m ethods Rev tements par galvanisation chaud sur produits finis ferreux . Sp cifications et m thodes d'essai A Reference number ISO 1461:1999(E). ISO 1461:1999(E). Foreword ISO (the international Organization for Standa rdization) is a worldwide federation of NATIONAL standards bodies (ISO member bodies). The work of preparing international Standa rds is normally carried out through ISO. technical com mittee s. Each member body interested in a subje ct for which a technical com mittee has been established has the right to be represented on that com mittee.

4 international organization s, governmental and non- governmental, in liaison with ISO , also take part in the work. ISO. collaborates closely with the international Electrotechnical Comm ission (IEC) on all matters of electrotechnical standardization . Draft international Standa rds adopted by the technical com mittees are circulated to the member bodies for voting. Publication as an international Standa rd requires approval by at least 75 % of the member bodies casting a vote. international Standa rd ISO 1461 was prepared by the European Com mittee for Standa rdization (CEN) in collaboration with ISO Technical Com mittee TC 107, Metallic and other inorganic coatings, Subcommittee SC 4, Hot dip coatings (galvanized, etc.)

5 , in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement). Throughout the text of this STANDARD , read ..this European Standa to mean ..this international . This second edition cancels and replaces the first edition (ISO 1461:1973). as well as the first edition of ISO 1459 (ISO 1459:1973 ), which has been technically revised. Anne xes A and B form an integral part of this international Standa rd. Annexes C to E are for information only. For the purposes of this international Standa rd, the CEN annex regarding fulfilment of European Council Directives has been removed. ISO 1999. All rights reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from the publisher.

6 international Organization for standardization Case postale 56 CH-1211 Gen ve 20 Switzerland Internet Printed in Switzerland ii ISO ISO 1461:1999(E). Contents P age 1 S cop e .. 1. 2 N orm ativ e referen ce s .. 1. 3 T erm (s ) an d d efinition(s ) .. 1. 4 G en era l requirem en t .. 3. H ot dip galvanizin g b ath .. 3. Inform atio n to b e supplie d b y th e pu rch ase r .. 3. S afet y .. 3. 5 S am p lin g .. 3. 6 C oatin g p rop ertie s .. 3. A p p earan c e .. 3. T h ickn es s .. 4. G en era l .. 4. T est m eth od s .. 4. R eferen c e area s .. 4. R en ovatio n .. 6. A d h esio n .. 6. A cceptan c e criteria .. 7. 7 C ertificat e of com plian c e .. 7. A nn ex A (n o rm ativ e) Inform ation to be supplied by the purch aser to the hot dip galvanizer.

7 8. A nn ex B (n o rm ativ e) Safety and process requirem ents .. 9. A nn ex C (info rm ativ e) P rop erties of the articles to be coated that affect the results of hot dip galvanizin g .. 10. A nn ex D (info rm ativ e) D eterm in ation of thickness .. 13. A nn ex E (info rm ativ e) B ib liograp h y .. 15. iii ISO 1461:1999(E) ISO. Foreword T h e tex t o f E N IS O 1 4 6 1 :1 9 9 9 h as b een p rep ared b y T e ch n ic al C o m m itte e C E N /T C 2 6 2 "M etallic an d o th er in org an ic co atin g s", th e se cretariat o f w h ich is h eld b y B S I, in co llab o ratio n w ith T e ch n ical C o m m ittee IS O /T C 1 0 7 "M etallic an d o th er in o rg an ic co atin g s". T h is E u ro p e an S tan d ard sh all b e g iv en th e statu s of a n atio n a l stan d ard , eith er b y p u b lic atio n o f an id en tical tex t o r b y en d o rse m en t, at th e latest b y A u g u st 1 9 9 9 , an d co n flictin g n atio n al stan d ard s sh all b e w ith d ra w n at th e latest b y A u g u st 1 9 9 9.

8 A c co rd in g to th e C E N /C E N E L E C In tern al R eg u latio n s, th e n atio n al stan d ard s org an izatio n s o f th e fo llo w in g co u n tries are b o u n d to im p le m e n t th is E u ro p ea n S tan d ard : A u stria, B elg iu m , C z ec h R ep u b lic, D en m ark , F in lan d , F ran c e, G erm a n y , G ree ce, Icelan d , Irelan d , Italy , L u x e m b o u rg , N eth erlan d s, N o rw ay , P o rtu g al, S p ain , S w ed en , S w itzerlan d an d th e U n ited K in g d o m . iv ISO ISO 1461:1999(E). 1 Scope T h is S tan d ard sp e cifies th e g e n eral pro p erties o f an d m eth o d s o f test fo r co atin g s ap p lied b y h o t d ip p in g in zin c (co n tain in g n o t m o re th an 2 % of o th er m etals) o n fab ricated iro n an d ste el a rticles.

9 It d o es n o t ap p ly to : a) sh eet an d w ire th at are co n tin u o u sly h o t d ip g alv an ize d ;. b) tu b e an d p ip e th at is h o t d ip g a lv an iz ed in au to m atic p lan ts;. c) h o t d ip g alv an ized p ro d u cts fo r w h ich sp ecific stan d ard s ex ist an d w h ich m ay in clu d e ad d itio n al req u ire m en ts o r req u ire m en ts d ifferen t fro m th o se of th is E u ro p e an S tan d ard . NOTE Individual product standards can incorporate this STANDARD for the coating by quoting its number, or may incorporate it with modifications specific to the product. A fter-treatm en t/o v erco atin g of h o t d ip g alv an iz ed articles is n o t co v ered b y th is stan d ard.

10 2 Normative references T h is S tan d ard in co rp o rates, b y d ated o r u n d ate d referen c e, p ro v isio n s fro m o th er p u b lic atio n s. T h ese n o rm ativ e referen c e s are cited at th e ap p ro p riate p lac es in th e tex t an d th e p u b licatio n s are listed h ereafter. F or d ated refere n ces, su b seq u en t a m e n d m e n ts to o r rev isio n s o f an y o f th ese p u b lic atio n s ap p ly to th is In tern atio n al/E u ro p ean S tan d ard o n ly w h e n in co rp o rated in it b y a m e n d m e n t o r rev isio n . F o r u n d ate d referen c es, th e latest ed itio n o f th e p u b lic atio n referred to ap p lies. E N 1 1 7 9 , Zinc and zinc alloys Primary zinc. E N IS O 1 4 6 0 , Metallic coatings Hot dip galvanized coatings on ferrous materials Gravimetric determination of the mass per unit area (ISO 1460:1992).