Disclosure to Promote the Right To Information

Transcription

1 इ टरन ट म नक 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. ज न1 क अ+धक र, ज 1 क अ+धक र Mazdoor Kisan Shakti Sangathan The Right to Information, The Right to Live प0र 1 क छ ड न' 5 तरफ Jawaharlal Nehru Step Out From the Old to the New IS 4683 (1968): Chilled iron shot and grit for use in foundries [MTD 14: Foundry]! न $ एक न' भ रत क +नम-ण Satyanarayan Gangaram Pitroda Invent a New India Using Knowledge! न एक ऐस खज न > ज कभ च0र य नहB ज सकत ह ह Bhartṛhari Nītiśatakam Knowledge is such a treasure which cannot be stolen

2

3

4 IS : In&an Standard ( Reaffirmed ls2 ) SPECIFICATION FOR CHILLED IRON SHOT AND GRIT FOR USE IN FOUNDRIES ( Second Reprint OCTOBER 1990 ) UDC Copyright 1968 BUREAU OF INDIAN STANDARDS MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR hlarg NEW DELHI Gr2 August 1968

5 ls: Indian Standard. SPECIFICATIOti FOR CHILLER IRON SHOT AND GRIT FOR USE IN FOUNDRIES Foundry Sectional Committee, SMDC 17 Chaimuzn SHRI N. G. CMKRNWRTI 3/D, Nnndy Street, Calcutta 29 Ml?tlIbWS SHRI H. R. BADYAL Rapresmting The Indian Iron & Steel Co Ltd, C&.utta DII P. vmudev.4n ( /f&l&) SHRI R. P. BAJORU J. D. Joncr & Co Ltd, Calcutta SHRI I-1. N. SEN ( Alfann~e) SHRX B. N. BALIQA Cooper Engineering Ltd, Satara Road ( Maharashtra state ) SHRX D. N. &NERJRE Hindurtan Machine Tools Ltd, Bangalore SHW K. NAOLSHA RAO ( Al&ma& ) SHRI P. K. BANERJZE Indian. Non-Ferrous Metals ManriFactured Association, Calcutta Smtr-D. P. JAIN ( AIkmafe ) SHRI NAXUB~ H. Ban The Indian Plumbago Co, Bombay. SHRI SUREaH N. BHA~ ( &cr~~~fs ) SHRX R. K. BHOWNICIC Bhartia Electric Steel Co Ltd, Calcutta SHR~ S. C. Brawny Indian Foundry Association, Calcutta SHRI M. K. RAO (Al&ma&) SHRI S. N. CHAUDHURY Engineering Association of India, Calcutta SHRI B. N. BALIGA (Al&mate ) SHRX S. K. DAM Bum & -Co Ltd, Howrah; and Indian Engikring -Association, Calcutta SHRI B. CHANDA ( Alkmafr ) Bum & Co Lrd, Howrah SHRI A. S. Daa~r Jyoti Ltd, Baroda SHRI S. R. MUN~HI ( Al&mate) SHRX S. D. ~HINKBR The Tata Iron & Steel Co Ltd! Jamahedpur SHRI H. N. KAPUOR ( AItema&) DIRLCK)R, FLJZET MAINTENANCE Naval Headquarters Ministry of Defence ) SHRE P. C. C&ZL Uttar Pradesh Steels I. td, Muzaffixmagar. S~pt S. C. JAIN The Jay Engineering Works Ltd. Calcutta SHRI S. JOHRI Kumardhubi Engineering Works Ltd, Calcutta SHRI Jb,TAgR~o ^~ ( Alfrmub ) JOINT RB~EAR~H Ministry of Railways ( M & C ), RI&FURCH, Das~am 6r STAIUDARM OROANIZATRM, CH~ARA~~JAN CHEMIST & METALLURGY ( SF), CHITTARANJAN Loco- Y~TIM WORKS, CHITTAJ~AN- JAN (Al&n&I) W~r~fyo~~ ( MANU?A~- ~TARANJAN LO~O~~OT~VX WORKS, CH~AMJAN ( Afternate II ) ( Cbntinueil 2! BUREAU OFINDIAN STANDARDS MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG NEW BELliX 1lomZ

6 is: SllHl 2. xl. i ll.jti1 (.&V/rnfC ) Slukand Iton 8: Steel Works Ltd, Flomhay 1;lfRl 1. (:. R.IPOOR lnzpeclion \Ving, Directorate General of Supplies & Disposals ( Alinistry of Works, Housing & Supply ) SIIRI Al. c. :hm (.4llrnwts j Slu21,\f. N. KH.XNN.\ IIindustan Steel Ltd, Bhilai SIlRl K. K. SARAN ( :ih,,/dt ) 5111il I<. M. f;risiis:\n National Slctallurgical Laboratory ( CSIR ), S,m,*B. \\. I;;l:Lli.4RSI.Jamsheclpur Diwctoratc General of Technical Development 1~ Xlinistry of Industrial Development 82 Company Affairs ) Srr~r Il. K. SR.~RXIA ( ~lb-~tc?lc ) Srrnr D. G. KULKARNI l%e Institute of Indian Foundrymcn, Calcutta SIIRI V. T. BALASUDKAMANI.\N ( n1ternntc ) SHRI B. V. ib~aii.4bal.e New Precision ( India ) Private Ltd, Dewas SHRI K. I-I. hheadevappa The Mysorelron & Steel Ltd, Bhadravati Srrar B. C;_BASA~AR~J ( ~Umnle ) SMKI hal hhtha hlachinerv Manufacturers Corporation Ltd, Calcutta STIR1 11. s. P.!C:L (.~fhw~k ) SIIHI N. J. hloov. Bombay Metal & Alloys hlanufacturing Co Pvt Ltd, Bombay SllRl 7 :c. ~k:l.ijck Elctrosteel Castings Ltd, Calcutta SHRI?. KUMAR ( Albmcrlr ) -SHRI B. D. I ALIWAL I he Britannia Engineering Co Ltd, Titaghur SHR1 H. C. PEOlJK%N The I ata Engineering & Locomotive Co Ltd, Jamshedpur SIIRI S. S. R. B~4~.\\\~.4ura.4~ _ (.4llcmofc ) SURI S. N. RAO Lasmi Starch Fattory Ltd, Bombay SHRI S. PARANESHWARAN (.*lltcma/e) I> SHRI K. S. S. VASAN Pioneer Equimncnt Co Private Ltd. Bombay SHRr I. B. H..JHAI ERI (.4km2tc ) DR P. \ ASUDFXM The In&an Institute of bietals, Calcutta DR A. K. CIIATTERJEP,, Director General, IS1 ( Ex-o&i0 Member) Director ( Strut K: 3let ) Secretay SIIRI R. K. SRIYASTA~A Deputy Director (?riet ), IS1. Fou:dry Abrasive Shot & Grit Sul.xo&nittce, SMDC 17 : 2 Nacbinery Nanufacturers Corporation Ltd, Calcutta Snot P. A. EROINEZR SHR1 N. K. R*JM.Hf.4 HsPaEaeNrAnvx Sxnr R. H. Tmwar Jndabrator Ltd, Bombay Orient Steel & Wire Industries Pvt Ltd; Calcutta N&co-Mowat s Metallic Grits Co Pvt Ltd, Bombay.\brasivea and Castings Ltd, Howrz$~

7 Indian Standard IS :Y SPECIFICATION FOR CHILLED IRON SHOT AND GRIT FOR USE IN FOUNDRIES 0. FOR.E-WORD 0.1 This Indian Standard was adopted by the Indian Standards Institution on.27 May 1968, after the draft finalized by the Foundry Sectional Committee had been approved by the Structural and Metals Divisidn Council. 0.2 This standard has been prepared to meet the. requirements of the fdundry industry in the country. In preparing this standard, assistance has been derived from B. S : 19@ c Specification for chilled iron shot and grit, issued by the British Standards Institution. 0.3 For the purpose of deciding wjlether a particular rcquiremnlt of this standard is complied with, the,, final value, observed or calculated, expressing the result of a test or analysis, shall be rounded off in accordance with IS : *., The number ofsignificant places retained in the rounded off value should be the same as that of yhe specified value in this standard. 1. SCOPE 1.1 This Indian Standard covers the requirements for chilled iron shot and grit. 2. DESIGNATION AND GRADING 2.1 Chilled iron shot shall be designated as S-C and graded by the shot number which is the aperture size of the retaining screen in thousandths of a millimetre ( see Table 1 ). 2.2 Chilled iron grit shall be designated a3 G-C graded by the grit number \vhich is the aperture size of the retaining screen in hundredths of a millimetre ( see Table 2 ). 3. SUPPLY OF MATERIAL 3.1 General requirements relating to the supply of chilled iron shot and grit, shall be as laid down in IS : t. _.._---- hules for rounding oknumerical valubs ( wise&). tccnera1 requirements for the supply of metallurical materials ( jird recision ). 3

8 . TABLE 1 SHOT GRADE NUMBERS (Cfouses 2.1 md 6.1) slews rdccifled in Amcndix A may used.

9 TABLE 2 GRIT GRADE (Douses 2.2 end 6.1) NUMBERS, DW2?t7t,k)Or allowed lor lmes _ NOTE-When IS sieves are not ava~lable.equivalen~ 8s or ASTM sews Appendix A may be used.

10 Ist IMA& 4.1 The chilled iron shot and grit shall be qade from cast iron with a carbon content in excess of l-7 percent and of such type that the shot and grit,having been chilled shall have a white iron structure The carbon content of the material shall be determined in accordance with IS : *. 5. SqPE 5.1 Shot - The particles shall as far as practicable- be spherical and solid, and shall not contain more than rhc minimum practicable- amount of ~ tails and irregular particles. ~5.2 Grit - The particles shall show good angularity of form with sharp cutting edges and shall be substantially free from ( half-rounds ( that is, shot split in half only ). 6. SIZE 6.1 The particles size shall be determined by testing with sieves complying with IS: t. The proportions retained and passed shall comply with the limits given in Tables J and 2. Exam&s : Shot &a& S-C 1 OOO-The whole sample passes through 1.70-mm IS Sieve. At most 5 percent is retained on the 1*40-mm IS Sieve. At least 80 percent passing through larger sieve, is retained on l-00 mm ( corresponding to the retaining screen ). At most 15 percent passes through l-00-mm IS Sieve. None passes through 710-micron IS Sieve. Grit Grade GC 60- The whole sample passes through l-00-mm IS Sieve. Atleast 70 percent, passing through larger sieves, is retained on 600-micron 1s Sieve ( corresponding to the retaining screen ). At most 15 percent passes through GCO-micron IS Sieve. Kane passes through 355-micron IS Sieve. 7. HARDNESS TEST 7.1 The Vickers hardness number shall be determined on sound individual particles on a suitable cross-section, in accordance with IS : 1501-lC53$... *Methods of chemical analysis of pig iron, steels ( rnimf ). tbpecification for test sicvca ( revised ). $Mcthod for Vicken hardness test for skcl. cast iron and plain carbon and low-alloy G

11 IS : Particles shall be mounted in a suitabie material, such as a thermosetting plastics material, and polished. If the particle cracks during the test, the result shall not be counted. 7.2 The hardness of any particle shall not be less than 750 i-iv. 8. PACKAGING 8.1 Unless specified otherwise the material shall be supplied in waterproof double gunny bags or inner polythene bags each containing 50 kg. 9. MARKING 9.1 Each container shall be clearly marked with the ibllowing information: a) Manufacturer s name or trade-mark, and b) Size and type designation of the material. 9.1.l The material may also be marked with the IS1 Certification Mark. NOTE - The use of the IS1 Certification Mark is governed by the provisions -of the Indian Standards Institution ( Certification Marks ) Act and therules and Regulations made thereunder. The IS1 Mark on products covered by an Indian Standard conveys the assurance that they have been produced to comply with the requirements of that standard under a welldefined system of inspection, testing and quality control which is devised and supervised by ISI and o crated by the producer. IS1 marked products arc also continuously checked by IS P for conformity to that standard as a further. safeguard.. Details of conditions under which a liccncc for the tisc of the IS1 Certification Mark may be granted to manufacturers or processors, may be obtained from the Indian Standards Institution. 10. SAMPLING 10.1 Samples each weighing 0.5 kg shall be taken from top, centre and bottom of at least five containers for.every tonne of material. These samples shall be combined, mixed and quartered to obtain a 2.5 kg laboratory sample from which 100 g samples shall be taken for testing purposes. Three 100 g samples shall be required for testing, one for carbon content, one for shape and size and one for the hardness of the material. A sample splitter -may be used to reduce the gross sample to the desired weight. 11. RETEST 11.1 If the sample selected fails to meet the requirements given under 4, 5, 6 and 7, two further samples shall be selected for each retest. Should the two retests satisfy the requirements of this standard, the lot shall -be accepted. Should either of the samples fail, the material shall be taken as not complying with the requirements of this material. 7

12 Is : APPENDIX A ( Note in Tables 1 and 2 ) COMPARATIVE SIEVE DESIGNATIONS OF IS, BS AND ASTM SIEVES IS Sieve 4075-mm 4*00-mm 3:35-mm 2.80-mm 2*36-mm 2*00-mm l-70-mm i *40-mm 1*18-mm 1 *OO-mm 850.micron tiicrofa 600-micron 500-micron 425-micron 355~micron 300-micron 180-micron 90-micron BS Sievs US Standard Sieve ( ASTM SieDe ) 4.76 mm (4) 4*CO mm (5) 3.36 mm (6) 2.83 mm (7) 2.38 mm (8) 2fIO mm (10) 1.63 mm (12) 1.4-l mm (14) l-19 mm (16) mm (18)?[a, 841 (r (20) 707 p. (25) 595 [L (30) 500 p (35) 420 p (40) 354 II (45) 297 I* (50) 177 p (80) 88 y (170)

13 BUREAU OF INDIAN STANDARDS Headquarters; Manak Bhavan, 9 Bahadur Shah Zafar Marg, NEW OELHI Telephones: , Telegrams: Manaksanstha ( Common to all Offices ) Regional Offices: Telephone Central : Manak Bhavan, 9 Bahadur Shah Zafar Marg NEW DELHI I *Eastern : 1 /14 C. I. T. Scheme VII M, V. 1. P. Road Maniktola, CALCUTTA Northern : SC , Sector 35-C, CHANDIGARH I Southern : C. I. T. Campus, -MADRAS I 4 : 2 s :: twestern : Manakalaya, E9 MIDC, Marol, Andheri ( East ), BOMBAY Branch Offices: IPushpak. Nurmohamed Shaikh -Marg, Khanpur AHMADABAD I ZPeenya Industrial Area 1st Stage, Bangalore Tumkur Road BANGALORE I Gangotri Complex, 5th Floor, Bhadbhada Road, T. T. Nagar, BHOPAL Plot No Lewis Road. BHUBANESHWAR Ward No. 29, R.G. Barua Road, 5th Byelane, GUWAHATI C L. N. Gupta Marg ( Nampally Station Road ), HYDERABAD R14 Yudhister Marg. C Scheme, JAIPUR I B Sarvodaya Nagar, KANPUR { Patliputra Industria! Estate, PATNA T.C. No. 14/1421. Universitv P.O.. Palayam f TRIVANDRUM lnspectim Offices ( With Sale Point ): Pushpanjali. First Floor, 205-A West High Court Road, Shankar Nagar Square, NAGPUR Institution of Engineers ( India ) Building, 1332 Shivaji Nagar, PUNE Street. *Sales Calcutta Office in Calcutta is at 5 Chowringhre Approach, P. 0. Princep t5alas Offtce in Bombay is at Novelty Chambers, Grant Road, Bombay Bangatore tsales Office in Bangalore is at Unity Building, darasimharaja Square, Reprography Unit, MS, New Delhi, India