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 (2003): Sisal Ropes, Part 1: Untarred Varieties [TXD 9: Cordage]! 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

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4 IS 1321 ( Part 1 ) :2003 * &ij-mm Wllfammavnalana ( Z k77pom ) Indian Standard SISAL ROPES SPECIFICATION PART 1 UNTARRED VARIETIES (Fourth Revision) ICS ; BIS 2003 BIJREAU OF INDIAN STANDARDS MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG NEW DELHI March 2003 Price Group 4

5 Cordage Sectional Committee, TX 09 FOREWORD This Indian Standard (Part 1) (Fourth Revision) was adopted by the Bureau of Indian Standards, after the draft finalized by the Cordage Sectional Committee had been approved by the Textile Division Council. This standard was originally published in 1960 and subsequently revised in 1970, 1982 and In this revision opportunity has been availed to align it with corresponding International Standard, 1S : 1990 Ropes Manila and sisal Specification. The present revision has been made in the light of the experience gained and incorporate the following major changes: a) Scope has been modified; b) Number of yam per strand has been incorporated in Tables 1,2 and 3; c) Tolerance on diameter has been provided; and d) Quantity of rot proofing agent has been specified. The composition of the Committee responsible for formulation of this standard is given in Annex B. For the purpose of deciding whether a particular requirement 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 2:1960 Rules for rounding off numerical values (rcwise~. The number of significant places retained in the rounded off value should be the same as that of the specified value in this standard.

6 Indian Standard SISAL ROPES SPECIFICATION PART 1 UNTARRED VARIETIES (Fourth Revision) IS 1321 ( Part 1 ) : SCOPE This standard (Part 1) prescribes the requirements of the following types of untarred electro-mechanically made sisal ropes: a) Hawser-laid (three-strand) sisal ropes of diameter 6 to 128 mm and with a linear density from 29 to ktex; b) Shroud-laid (four-strand) sisalropes of diameter 12 to 96 mm and with a linear density from 105 to 6400 ktex; and c) Cable-laid (nine- strand) sisal ropes of diameter 40 to 144 mm and with a linear density from 1030 to ktex. 2 REFERENCES The standards listed in Annex A contain provisions which through reference in this text, constitute provision of this standard. At the time of publication, the editions indicated were valid. All standards are subject to revision and parties to agreements based on this standard are encouraged to investigate the possibility of applying the most recent editions of the standards indicated in Annex A. 3 TERMINOLOGY For the purpose of this standard, the definitions given in IS 3871 shall apply. 4 ATMOSPHERIC CONDITIONS FOR CONDITIONING AND TESTING The tests shall be carried out under prevailing atmospheric conditions. In all cases of dispute, however, tests shall be carried out on samples which have been conditioned for 24 h in an atmosphere at 65 * 2 percent relative humidity and C temperature (see IS 6359). Where practicable, tests shall be made in the standard atmosphere, otherwise, they shall be made as quickly as possible not exceeding 15min of removal of the test pieces from conditioning atmosphere. 5 MANUFACTURE 5.1 Sisal Fibre The tibre used in the manufacture of ropes shall be sisal, that is sisal (Agava Sisalana) true to its type and shall be unadulterated and free from defects and shorts. The fibre shall be well hackled and of quality, fineness and colour necessary to produce ropes having the characteristics required and specified in the respective tables (see Table 1 to 3). 5.2 Yarn The evenly spun yarn processed on hard fibre processing plant shall be used for manufacture of the ropes. Hand-hackled or hand-spun yam shall not be used. To comply with the minimum number of yarns specified in this standard, yarn of 4.6 ktex shall be used. 5.3 Strand The strand of ropes shall be well formed and free from grooves and sunken yarns, and each strand shall contain an equal number of yams. The strand shall have S-lay. 5.4 Ropes The ropes shall be well laid and free from defects and each coil shall be continuous throughout its length and shall not contain loose ends, splices or joints in the strands or in the rope. The number of strands in the rope and the lay of rope, unless otherwise specified, shall be as unde~ S[ No. Type of Rope No. of Sfrana% Zay of Rope O Hawser-laid sisal rope 3 Z-lay ii) Shroud-laid sisal rope 4 Z-lay (see Note) iii) Cable-laid sisal rope 9 Z-lay for (with 3 primary ropes primary rope twisted together) and S-lay for final rope NOTE Shroud-laid sisal rope shatl contain awe of appropriate diameter The angle of lay for all types of ropes shall be Lubrication Weighing or loading materials shall not be used. For the purpose of dressing the tlbre or for the preservation of the rope, a lubricant shall be added preferably petroleum products. The quantity of dressing applied to the fibre shall be neither less than 10 percent nor 1

7 IS 1321 ( Part 1 ) :2003 more than 15 percent calculated on the mass of the finished rope when determined by extraction with petroleum ether or other suitable solvent. 5.6 Rot-Proofing Treatment If so ordered, ropes shall be rot-proofed by the application of suitable rot-proofing agent in appropriate quantity to protect the rope from mildew, fungus and bacterial effect as agreed to between the buyer and the seller. The rot-proofing agent may be applied in the fibre at the dressing stage for uniform penetration in the rope. Ropes, which have been so treated shall otherwise comply, in all rqspects, with the requirements of this standard. In case zinc or copper napthenate is used, the zinc content shall be 0.8 percent to 1.2percent and copper content shall be 0.5 percent to 1.2 percent respectively and estimation of zinc and copper shall be done in accordance with IS 3522 (Part 1). 6 REQUIREMENTS 6.1 Mass of the Coil The net mass of the coil shall be determined in accordance with IS 7071 (Parts 1 to 3). This mass shall not vary more than the tolerance limits given below from the calculated value of net mass obtained by multiplying nominal linear density of the coil with length of rope in the coil: Reference No. of Rope Tolerance, Percent 6.2 Pitch Up to 8 +=10 lo to Above 14 5 The pitch of rope, when determined in accordance with IS 7071(Parts 1 to 3) shall conform to the following requirements: Type of Rope Pitch a) Hawser-laid sisal rope shall be between 2.5D to 3.7D b) Shroud-laid sisal rope shall be between 2.7D to 3.7D c) Cable-laid sisal rope shall be between 2.2D to 3.2D where D is the diameter of the rope. 6.3 Length of Coil The length of each coil when tested as per IS 7071 (Parts 1 to 3) shall not be less than 220 m or as declared. However, if so agreed between the buyer and the seller, the length of coil maybe tested under zero tension and ~5 percentolerance shallbeapplicable on the specified/ declared length. NOTE Any coil which has been shortened by cutting from it the necessary test sample shall be accepted at its original length, provided that the test sample complies with the specified requirements. 6.4 Other Requirements The hawser-laid sisal rope shall conform to the requirements given in Table 1 shroud-laid sisal ropes to the requirements given in Table 2 and cable-laid sisal ropes to the requirements given in Table The diameter ofthe rope as specified in Table 1, 2 and 3 shall not be less than the specified and shall not exceed it by more than the following tolerances: 7 FINISH Diameter mm Tolerance mm Up to * and above 7 Unless specifically required by the purchaser, no colouring agent, except the rot-proofing agent shall be used. Weighing or loading materials shall not be used. All ends shall be securely whipped or marked. 8 IDENTIFICATION 8.1 If the agreement between the buyer and the seller so provides, sisal rope whether hawser-laid, shroudlaid or cable-laid, shall have, for the purpose of identification, a red yam in one of the primary strands. For colour code identification of ropes and cordages, IS 9560 maybe referred The marker yams shall take the piece of one of the white yarns and may be of jute provided it is not coarser than tex (48 grist) yam. If jute yam is thus used, it shall not be taken as a substitute for one of the white yarn in the strand but shall be additional. 9 PACKING Unless otherwise specified, ropes shall be packed conforming to the requirements laid down in IS MARKING 10.1 Each coil shall have labels at both ends securely attached on which the following shall be marked: a) Indication of the source of manufacture, b) Length of rope in the coil, c) Reference number (or diameter, in mm), and d) Any other marking required by the buyer BIS Certification Marking Each coil may also be marked with the Standard Mark The use of the Standard Mark is governed by the provisions of the Bureau of Indian Standards Act, 2

8 IS 1321( Part 1 ) : and rules and regulations made thereunder. The details of the conditions under which a licence for the use of the Standard Mark may be granted to manufacturers or producers may be obtained from the Bureau of Indian Standards. 11 SAMPLING AND CRITERIA FOR CONFORMITY 11.1 Lot The quantity of coils of rope of the same linear density, type and dimensions, manufactured under similar conditions and delivered to a buyer against one despatch note shall constitute a lot The conformity of the lot shall be determined on the basisof thetestscarried out onthe samples selected from it Sampling shall be as representative as possible of the lot. Draw the samples at random at the rate shown by the following formula: where S S isthe number of coils in the sample, and N is the size of the lot expressed, as number of coils. When S as, calculated is not a whole number, round off the value obtained to give a whole number in accordance with the requirements of IS 2 : In case where S is less than one drawn a sample coil For evaluating the length, linear density, breaking strength and pitch, the number of coils selected according to 11.3, shall constitute the test sample For evaluating the net mass of the lot, all the coils into the lot shall constitute the test sample Criteria for Conformity The lot shall be declared conforming to this standard if following conditions are satisfied: a) Length of each coil satisfies the specified declared length; b) All the individual test samples tested for breaking strength satisfi the specified breaking strength. However, in case of failure of the test specimen drawn from a coil, another specimen shall be retested from the same coil and the same shall satisfi the specified requirement; and c) Average values of the test results of the lot in respect of other characteristics conform to the specified requirements.

9 IS 1321 (Part 1 ) :2003 Table 1 Requirements of Sisal Ropes Hawser-Laid (3-Strands) (Clauses 5.1,6.4 arrd6.5) Reference Number (Diameter) mm No. of Yarns per Strand, Min L,inear Density ktex (g/m) Breaking Strength, Min kn (kgf) (1) (2) (3) (4) ,550 (260) (483) (635) (955) (1 285) (1 804) (2 134) (2 853) (3 404) (4 064) (4 724) (5 323) (6 093) (6 858) (8 630) (9 397) (10412) (12 696) (14 731) (17 270) (19 809) (25 693) (25 963) (28 492) (32 691) (34 990) (38 689) (46 787) (53 485) (65 281) (75 179) (86 375) (97 972) Method of Test, ( Is 7071 (Parts 1 to 3) ) 7071 (Part 4) Ref to IS NOTES 1 I kn = kgf approximately. 2 Tolerance on linear density for reference numbers upto 8 is *1O percen~ for reference numbers 10 to 14 is *8 percent and for referenee numbers above 14 is * 5 percent. 4

10 Table 2 Requirements of Sisal Ropes Hawser-Laid (4-Strands) IS 1321( Part 1 ) :2003 (Clauses 5.1,6.4 and6.5) Reference No. of Yarns Linear Density Breaking Number per Strand, ktex Q/m) Strength, (Diameter) Min Min mm kn (kgf) (1) (2) (3) (4) (860) (1 155) (1 624) (1 919) (2 559) (3 064) (3 659) (4 249) (4 789) (5 483) (6 173) (8 767) (9372) (11 427) (I3 256) (15 546) (17 830) (20 339) (23 123) (25 643) (29 422) (31 491) (34 820) (42 108) (48 136) (58 753) (67 661) (76 718) (82 669) Method of Test, < IS 7071 (Parts 1 to 3) ) 7071 (Part 4) Ref to IS NOTES 1 1 kn = kgf approximately. 2 Tolerance on linear density for reference numbers rrpto 8 is* 10 percent, for reference numbers 10 to 14 is +8 percent and for reference numbers above 14 is + 5 percent.

11 IS 1321( Part 1 ) :2003 Table 3 Requirements of Sisal Ropes Cable-Laid (9-Strands) (C/auses 5.1,6.4 and 6.5) Reference (Diameter) mm (1) No. of Yarns per Strand, &fin (2) Linear Density ktex (g/m) (3) Breaking Strength, &fin kn(kgf) (4) (6 598) (7 818) (9 137) (1 O 497) (11997) (15 196) (18 795) (22 793) (27 192) (37 189) (42 988) (48 986) (55 584) (62 482) (70 080) Tolerance * 5 percent Method of Test, { IS 7071 (Parts 1 to 3) -) 7071 (Part 4) Ref to 1S NOTES 1 1 kn = kgf approximately. ANNEX A (Clause 2) LIST OF REFERRED INDIAN STANDARDS IS No. 3256: (Part 1): : :1971 Title Code for inland packaging of ropes and cordages (first revision) Methods for estimation of common preservatives used in textile industry, Part 1 (fht revision) Textiles Fibre ropes and cordage Glossmy of terms (second revision) Method for conditioning of textiles IS No (Parts 1 to 3) : (Part 4): :1980 Title Ropes and cordages Methods of physical test (jirst revision) Methods of physical test for ropes and cordages : Part 4 Breaking load and elongation at break Colour code for identification ropes and cordages of 6

12 IS 1321 ( Part 1 ) :2003 ANNEX B (Foreword) COMMITTEE COMPOSITION Cordage Sectional Committee, TX 09 Organization Jayashree Fibre Products, Kolkata Balaji Ropes Manufacturing Co Pvt Ltd, Kolkata C A Polycare Pvt Ltd, Kolkata Calcutta Port Trust, Kolkata Coir Board, Alleppey Delta Rope Manufacturing Co Ltd, Howrah Directorate General of Supplies& Disposals (Inspection Wing), New Delhi Garware-Wall Ropes Ltd, Pune Indian Jute Industries Research Association, Kolkata Indian Rope Manufacturers Association, Kolkata Jayashree. Fibre Products, Kolkata M. Best Cotton Rope Manufacturing Co, Mumbai Minsitry of Defence (DGQA), New Delhi Ministry of Defence (R&D), New Delhi Ministry of Defence (DGQA Naval), New Delhi OffIce of the Jute Commissioner, Kolkata office of the Textile Commissioner, Mumbai Shipping Corporation of India Ltd, Mumbai Research Design & Standards Organization, Lucknow United Rope Works, Kolkata BIS Directorate General Representative(s) SFUUN. K. SoNAArw(Chairman) Smu SANOEEPAGARWAL Strru U. S. CHAKRABORTV SHRI P. L. NAG SHIU S. K. CHATtERJEE(Alternate) SHRIP. T. JOSEPH Smrr K. G. RAGHAVAN(Alternate) SHRI MOTILALCHAKRABORTY SHM TAPAN GUCHAIT(Ahernate) Stuu A.K. SEHGAL W-a SUNDERLAL (Alternate) SHTUM.P. MONE Smu S. J. Cmrws (Mernate) DR K. JAYACHANORAN DR D. SoR (Alternate) REPRESENTAnVE Woo T. BHATrACHARIEE(Akernafe) Strrrr B. K. BIYAriI SHtU A. K. SAHA(Alternate) SHRIKANTILALG. THANAWALA Mao HEMALM. THANAWALA(Alternate) SHMO. P. SHARMA Smu T. P. SINGH(Alternate) Sruu BRAMANANO Smu M. L. PAL (Alternate) SHIULAXMANSINGH SHXSK. N. SAHU(Alternate) SrrrcrD. K. SARKAR SHRI D. K. DUtTA (Akernare) Smu S. P. GHOSAL Smu S. CHAKRABARTV(Alternate) Smu D. K. RAY SHRI G. SHARMA(Alferrrate) Smu M. N. VANtKER SW A. P.M. KIUSHNAMORmV(Alternate) SHNS. N. AGARWAL SHRS A. AGARWAL(Alternate) SsrruP. BHATNAGAR,Director & Head (TXD) [Representing Director General (Ex-oficio)] Member Secretary SHRIB. L. BHARATI Joint Director (TXD), BIS

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