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इंटरनेट मानक Disclosure to Promote the Right To Information Whereas the Parliament of India has set out to provide a practical regime of right to information for citizens to secure access to information under the control of public authorities, in order to promote transparency and accountability in the working of every public authority, and whereas the attached publication of the Bureau of Indian Standards is of particular interest to the public, particularly disadvantaged communities and those engaged in the pursuit of education and knowledge, the attached public safety standard is made available to promote the timely dissemination of this information in an accurate manner to the public. “जान1 का अ+धकार, जी1 का अ+धकार” “प0रा1 को छोड न’ 5 तरफ” Mazdoor Kisan Shakti Sangathan Jawaharlal Nehru “The Right to Information, The Right to Live” “Step Out From the Old to the New” IS 4763 (2006): Manganese ore for production of ferro manganese [MTD 13: Ores and Raw Materials] “!ान $ एक न’ भारत का +नम-ण” Satyanarayan Gangaram Pitroda ““IInnvveenntt aa NNeeww IInnddiiaa UUssiinngg KKnnoowwlleeddggee”” “!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता हहहहै””ै” Bhartṛhari—Nītiśatakam “Knowledge is such a treasure which cannot be stolen” I,. IS4763:2006 *wF!w– (v j-?m ) Indian Standard MANGANESE ORE FOR PRODUCTION OF FERRO MANGANESE — SPECIFICATION (Second Revision) ICS 73.060.20 0 BIS 2006 BuREAu OF INDIAN STANDARDS MANAK BHAVAN, 9 BAHADUR S.HAH ZAFAR MARG NEW D ELHI 110002 May 2006 Price Group 1 Ores and Raw Materials Sectional Committee, MTD 13 > FOREWORD This Indian Standard (Second Revision) was adopted by the Bureau of Indian Standards, after the draft finalized by the Ores and Raw Materials Sectional Committee had been approved by the Metallurgical Engineering Division Council. This standard das firstpublished in 1968and laterrevised in 1982. The.need forpresent revision arose toensure the supply of manganese ore of appropriate specifications for the production of ferromanganese inthe country. A number of changes have taken place in the manganese industry since then, and it has therefore become necessary to review and further revise the standard. In this revision, the following changes have been made: a) Proposed Fe content and SiOzcontent take into account quality ofore asfound inthe various parts ofthe country; b) In order to accommodate low grades ores it is felt desirable to raise the limits of SiOzas well as their limiting combined value; c) Requirement for phosphorus has also been slightly relaxed; and d) Size specifications have been slightly modified to facilitate the mining industry. No marking clause has been included inthis standard asmanganese ore is supplied loose. For the purpose of deciding whether a particular requirement of this standard is complied with, the final value, observed or calculated, and expressing the result of atest or analysis, shall be rounded off in accordance with IS 2: 1960 ‘Rules for rounding off numerical values (revised)’. The number of significant places retained inthe rounded off value should be the same asthat ofthe specified value in this standard. IS 4763:2006 Indian Standard MANGANESE ORE FOR PRODUCTION OF FERRO MANGANESE — SPECIFICATION (Second Revision) 1 SCOPE IS 1473shallhave the chemical composition given in Table 1. This standard covers the requirements for six grades of manganese ore for the production of ferro- 4.2 The requirement for phosphorus is applicable to man.ganese (see Table 1). all the grades. 2 REFERENCES 4,2.1 The phosphorus of each grade shall fall within one of the following groupings: The following standards contain provisions which through reference inthis text, constitute provisions of Grade Percent this standard. At thetime of publication, the editions indicated were valid. All standards are subject -to LOW phosphorus Less than 0.10 revision, and parties -to agreement based on this Medium phosphorus o.lotoo.19 standard are encouraged to investigate the possibility High phosphorus More than 0.19 of applying the most recent editions of the standards indicated below: 5 SIZE IS No. Title 5.1 The size range of manganese ore shall be as 1387:1993 General requirements forthesupply follows: of metallurgical materials (second revision) Size Percent mm Max 1449:1976 Methods of sampling ofmanganese ore (jhst revision) -1-75 5 1473:2004 “Methods of chemical analysis of – 10 14 manganese ores (fhst revision) –3 4 3 SUPPLY OF MATERIAL 5.1.1 Manganese ore conforming to the size ranges 3.1 General requirements relating to the supply of other than specified above may be supplied subject to manganese ore for the production of ferromanganese mutual agreement between the supplier and the shall be as laid down in IS 1387. purchaser. 3.2 The material shall be in the form of lumps, free 6 SAMPLING from dirt and other foreign matter. Representative samples of manganese ore for testing 4 CHEMICAL COMPOSITION shall be drawn according to the scheme of sampling 4.1 The materials when anlaysed in accordance with given inIS 1449. 1 IS 4763:2006 I Table 1 Chemical Composition of Manganese Ore for the Production of Ferromanganese (Clauses 1and 4.1) Grade Percent Mn Fe SiO1 AllO, Si02+AI,O, MniFe Max MUX MaK Max Min (1) (2) (3) (4) (5) (6) 48andover 7 8 2 10 7 Below48 UPto46 8 10 3 13 6 Below46 10 13 3.5 15 4.5 upto44 Below44 12 16 4 18 3.5 Upto42 Below42 14 18 5 20 3 upto40 Below40 16 20 6 23 2.5 upto38 2 —--- .. .,.-... ——___ Bureau of Indian Standards BIS is a statutory irrstitution established under the Bureau of hdian Standards Act, 1986 to promote harmonious development of the activities of standardization, marking and quality certification of goods and attending to connected matters in the country. Copyright BIS has the copyright of all its publications. No part of these publications may be reproduced in any form without the prior permission in writing of BIS. This does not preclude the free use, in the course of implementing the standard, of necessary details, such as symbols and sizes, type or grade designations. Enquiries relating to copyright be addressed to the Director (Publication), BIS. Review of Indian Standards Amendments are issued to standards as the need arises on the basis of comments. Standards are also reviewed periodically; a standard along with amendments is reaffirmed when such-review indicates that no changes are needed; if the review indicates that changes are needed, it is taken up for revision. Users of Indian Standards should ascertain that they are in possession of the latest amendments or edition by referring to the latest issue of ‘BIS Catalogue’ and ‘Standards: Monthly Additions’. This Indian Standard has been developed from Dot: No. ,MTD 13 (4596). 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