Table Of Content

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 15402 (2003): Ceramic Fibre Blanket Insulation [CHD 27: Thermal Insulation] “!ा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” . ,.’ IS 15402:2003 Wwfb7Wm FtRFRh w * m iwiwfwafw Indian Standard CERAMIC FIBRE BLANKET INSULATION — SPECIFICATION ICS 27.220; 81.060.20 0 BIS 2003 BUREAU OF INDIAN STANDARDS MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG NEW DELHI 110002 Scplc?mlx’t- 2003 Price Group 4 r-q ‘1’hernia][nsuiation sectional Committee, CHD 27 [’OREWORD Ihis [l~dian Standard was adopted by the Bureau of Indian Standards, after the draft finalized by the Thermal Insuiution Sectional Committee had been zipproved by the Chemical Division Council. ‘1’Ilcusc of’ceramic fibres as thermal insulation materials began in 1960’s. However, their use has grown since eaI-ly 1970”s. The use ofceramic iibrcs products as high temperature insulation spread rapidly as aconsequence of (IICenergy crisis ivorldwide in the early seventies, These are extensively used as thermal insulation and fire rcsis[ant inatcria!s besides their core strength as low thermal mass soft refractory lining material. ‘1’IICct~lllpositiorl OF[he Committee responsible for f(mnulation of this standard isgiven in Annex B. I’or the purpose of dcciditlg 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 IS2: 1960 ‘Rules for rounding off numerical values (revised)’. The number of significant places retained in the roIIndcd of’fvalue should be the same as that of the specified value in this standard. (cid:65)(cid:77)(cid:69)(cid:78)(cid:68)(cid:77)(cid:69)(cid:78)(cid:84)(cid:32)(cid:78)(cid:79)(cid:46)(cid:32)(cid:49)(cid:32)(cid:32)(cid:68)(cid:69)(cid:67)(cid:69)(cid:77)(cid:66)(cid:69)(cid:82)(cid:32)(cid:32)(cid:50)(cid:48)(cid:49)(cid:49) (cid:84)(cid:79) (cid:73)(cid:83)(cid:32)(cid:49)(cid:53)(cid:52)(cid:48)(cid:50)(cid:32)(cid:58)(cid:32)(cid:50)(cid:48)(cid:48)(cid:51) (cid:67)(cid:69)(cid:82)(cid:65)(cid:77)(cid:73)(cid:67)(cid:32)(cid:70)(cid:73)(cid:66)(cid:82)(cid:69)(cid:32)(cid:66)(cid:76)(cid:65)(cid:78)(cid:75)(cid:69)(cid:84) (cid:73)(cid:78)(cid:83)(cid:85)(cid:76)(cid:65)(cid:84)(cid:73)(cid:79)(cid:78) (cid:8212)(cid:32)(cid:83)(cid:80)(cid:69)(cid:67)(cid:73)(cid:70)(cid:73)(cid:67)(cid:65)(cid:84)(cid:73)(cid:79)(cid:78) (cid:40)(cid:80)(cid:97)(cid:103)(cid:101)(cid:32)(cid:50)(cid:44)(cid:84)(cid:97)(cid:98)(cid:108)(cid:101)(cid:51)(cid:44)(cid:78)(cid:111)(cid:116)(cid:101)(cid:44)(cid:108)(cid:105)(cid:110)(cid:101)(cid:32)(cid:50)(cid:41)(cid:8212)(cid:32)(cid:83)(cid:117)(cid:98)(cid:115)(cid:116)(cid:105)(cid:116)(cid:117)(cid:116)(cid:101)(cid:32)(cid:8216)(cid:111)(cid:110)(cid:99)(cid:101)(cid:32)(cid:105)(cid:110)(cid:32)(cid:97)(cid:32)(cid:121)(cid:101)(cid:97)(cid:114)(cid:8217)(cid:102)(cid:111)(cid:114)(cid:32)(cid:8216)(cid:111)(cid:110)(cid:99)(cid:101)(cid:32)(cid:105)(cid:110)(cid:32)(cid:116)(cid:104)(cid:114)(cid:101)(cid:101)(cid:32)(cid:121)(cid:101)(cid:97)(cid:114)(cid:115)(cid:8217)(cid:46) (cid:40)(cid:67)(cid:72)(cid:68)(cid:32)(cid:50)(cid:55)(cid:41) (cid:82)(cid:101)(cid:112)(cid:114)(cid:111)(cid:103)(cid:114)(cid:97)(cid:112)(cid:104)(cid:121)(cid:32)(cid:85)(cid:110)(cid:105)(cid:116)(cid:44)(cid:32)(cid:66)(cid:73)(cid:83)(cid:44)(cid:32)(cid:78)(cid:101)(cid:119)(cid:32)(cid:68)(cid:101)(cid:108)(cid:104)(cid:105)(cid:44)(cid:32)(cid:73)(cid:110)(cid:100)(cid:105)(cid:97) IS 15402:2003 Indian Standard CERAMIC FIBRE BLANKET INSULATION — SPECIFICATION 1SCOPE IS No. Title This standard prescribes the requirements and the 10085:1982 Methods for chemical analysis of methods of samp[ing and test for high temperature zircon flour or sand ceramic fibre blanket comprising generally thermal 12107 Methods of chemical analysis of insulation ofalumina-silica system fibre and alumina- alumina silicate refractory materials: zirconia-silica system fibre. (Part 5) :1987 Determination of titanium When the installation or use of thermal insulation (Part 6): 1987 Determination of iron materials, accessories and system may pose safety or 14656:1999 Ceramic fibre products — Methods health problems, the manufacturers shall voluntarily of test provide the use with appropriate current information regarding any known problems associated with the 3 TERMINOLOGY recommended use ofthe company’s products and shall Forthe purpose ofthis standard, the definitions ofterms, also recommend protective measures to be employed in their safe utilization. The use shall establish symbols and units given in IS 3069, IS 14656 and the appropriate safety and health practices and determine following shall apply. the applicability ofregulatory requirements prior touse. 3.1 Ceramic Fibre —A generic term used for alum ino- silicate tibre. Other inorganic material like zirconia may 2 REFERENCES be added for better properties. It is also termed as The standards listed below contain provisions which refractory ceramic fibre (RCF). through reference inthis text, constitute provisions of 3.2 Classification Temperature — It is the highest this standard. At the time of publication, the editions temperature in “Cat which the linear shrinkage is less indicated were valid. All standards are subject to than 4 percent. revisions, and parties to agreements based on this standard are encouraged to investigate the possibility 4 CLASSIFICATION of applying the most recent editions of the standards indicated below: 4.1 Types IS No. Tid e The product is of two types: a) Type I—Zirconia or non-zirconia based 1335:1979 Methods for direct determination of material with a classification temperature of 1 alumina inrefractory materials (first 260 “C, and revision) b) Type 11—Zirconia or non-zirconia based 1527:1972 Methods for chemical analysis of material with a classification temperature of 1 high silica refractory materials (jlrst 430° c. revision) 3069: 1994 Glossary ofterms, symbols and units 4.2 Grade relating to thermal insulation The product isseparated into following four grades for materials ((first revision) all types, based upon its bulk density: 3144: 1992 Mineral wool thermal insulation Grade Nominal Bulk Densi~, materials— Methods of test kg/m3 (second revision) 64 64 3346: 1980 Method for the determination of 96 96 thermal conductivity of thermal 128 128 insulation materials (two slab 160 160 guarded hot plate method) (j7rst revision) 5 REQUIREMENTS 9490:1980 Method fordetermination ofthermal 5.1 Description conductivity of insulation materials (water calorimeter method) The material shall be soft inorganic refractory fibres 1 1S 15402:2003 made by melting alumina and silica followed by 5.5 Tensile Strength tibrisation either by blowing the melt or by drawing When tested in accordance with 8 of IS 14656 the the melt over aset of spinning wheels. Zirconia (ZrO,) material shall have minimum tensile strength value shall beadded alongwith alumina and silica to improve given in Table 2. the properties incase ofType 11and Type 111materials. Table 2 Tensile Strength 5.1.1 The blankets shall be needled type with the same fibers. (Clause 5.5) 5.2 Bulk Density S1No. BulkDensity Tensile Strength, kg/m’ Longitudinal Direction The bulk density of the material, when tested in kPa accordance with the method prescribed in 11 (1) (2) (3) of IS 14656, shall conform to the requirement of 4.2 O 64 15 with allowable tolerance of– 10percent, + 30 percent on the manufacturer’s declared value based on nominal ii) 96 20 thickness. iii) 128 40 iv) 160 50 5.3 Shot Content NOTE — For blown material 60percent ofthe specified values The shot content of the material when sieved through shall be considered. 210 micron sieve, shall not be more than 30 percent when determined in accordance with the method 5.6 Fibre Diameter prescribed in 7 of IS 14656. The mean fibre diameter of the material when tested 5.4 Linear Shrinkage according to 6of IS 14656 shall be 2.0 to 4.0 microns. When tested according to 9 of IS 14656, linear 5.7 Thermal Conductivity shrinkage of the material shall not be more than the values given in Table 1. Thermal conductivity or K-value of the material shall not exceed the values given in Table 3 when tested in Table 1Linear Shrinkage, Percent, Maximum accordance with IS3346 or IS9490. Further incase of (Clause 5.4) disputes the method shall be refereed to IS 3346. S1No. Temperature Type 1 Type 11 5.8 Chemical Composition “c The material shall conform to the requirements given (1) (2) (3) (4) inTable 4when tested inaccordance with the methods i) 1000 1. 5 1.0 given inCO15 of Table 4. ii) 1200 3.5 3.0 5.9 Dimensions iii) 1400 — 4.0 The blankets shall be supplied in rolls in width of Table 3 Thermal Conductivity in W/mK, Maximum (Clause 5.7) S1No. Mean Bulk Density, kg/m’ Temperature .- A - “c 64 96 128 160 (1) (2) (3) (4) (5) (6) i) 200 0.089 0.078 0.076 0.076 il) 300 0.105 0.096 0.081 0.080 iii) 400 0.138 0.128 0.I22 0.120 iv) 500 0.173 0.160 0.150 0,145 NOTE — Itwould be sufficient to have representative product type tests for K-valueonappropriatespecimenscorrespondingto productanddensityofthematerialsuppliedonceinthreeyearsorasagreedtobetweenthecustomerandthesupplier,toensurethat conformitywiththerequirementsofthespecificationismaintained.The composition may be indicated by tibre diameter, shot content, density, etc. 2 IS 15402:2003 Table 4 Chemical Composition (Clause 5.8) S1No. Characteristics Type ofMaterial Methods ofTest, / A Ref to IS No. I 11 (1) (2) (3) (4) (5) O Alumina content, asAljOl, percent 41-48 29-37 1s 1335 ii) Silica content, as S102,percent 49-58 42-57 IS 1527 iii) Zirconium oxide, MZrOz, percent o-7 13-18 1S 10085 iv) Iron oxide (as FezO,), percent, Max 0.1 0.1 IS 12107 (Part 6) v) Titanium dioxide (asTiOJ, percent, Max 0.3 0.3 IS 12107 (Part 5) vi) Others (by ditTerence), percent, Max 1,0 I.0 — vii) Leachable chlorides (as CI) percent, Max 0.0020 0.0020 Is 3144 305, 610, 1220 mm and length of3 650, 3810, 7300, Table 7 Thickness of Blanket Rolls 7320,7620 mm and thickness of6, 9, 12, 19,25,38, (Clause 5.9) 50 mm or as agreed to between the purchaser and the supplier. However, the tolerance on dimensions shall S1No. Thickness Tolerance, mm be as per Tables 5,6 and 7. mm (1) (2) (3) Table 5 Width of Blanket Rolls O 6.0 +6 -3 (C/ause 5.9) ii) 9.0 +9 S1No. Width Tolerance, Percent -3 mm iii) 12.0 + 12 (1) (2) (3) -3 i) 305 -2 iv) 19.0 + ]9 + 10 -3 ii) 610 -2 v) 25.0 + 19 + 10 -3 iii) 1220 -2 vi) 38,0 + 19 + 10 -3 vii) 50.0 + 19 –6 Table 6 Length of Blanket Rolls (Clause 5.9) 6 PACKING AND MARKING S1No. Length Tolerance, Percent 6.1 Packing mm The material shall be packed in waterproof polythene (1) (2) (3) bags which shall be further encased in card board O 3650 -o cartons or as specified/agreed to between the supplier and the purchaser. ii) 3810 -o 6.2 Marking iii) 7300 -o The packages shall be legibly and indelibly marked with iv) 7320 -o the following information: v) 7620 -o a) Name of material; w. .,11, .-,.. .. ..—— — ‘j 1S 15402:2003 b) Indication of the source of manufacture; the provisions of the Bureau ofIndian Standards Act, 1986 and the Rules and Regulations made thereunder. c) Apparent density of the material; The details of conditions under which the licence for d) Length, width and thickness of material; and the use of the Standard Mark may be granted to e) Batch number. manufacturers or producers maybe obtained from the Bureau of Indian Standdrds. 6.3 131SCertification Marking 7 SAMPLING 6.3.1 The product may also be marked with the Standard Mark Representative samples of the material shall be drawn and their conformity determined in accordance with 6.3.1.1 The use of the Standard Mark is governed by the method prescribed inAnnex A. ANNEX A (Clause 7) SAMPLING OF CERAMIC FIBRE BLANKET A-1 SAMPLING 1,2,3 ........... upto r and so on, where r is the integral part of N/n (N being the lot size and n A- 1.1 Lot being the number of roll to be selected). Every All the material of the same density produced under rth roll thus counted shall be withdrawn from essentially the same conditions of manufacture shall the lot to give samples for tests. be grouped and each such group shall constitute a A-3 NUMBER OF TESTS separate lot. N(3TE — The purchaser and thesupplier may mutually agree A-3.1 From each of roll selected according to A-2.2 10term the material manufactured during acertain period asa test specimens necessary for carrying out the various 101.[tisrecwnmended that an8hproduction under essentially tests specified inthis standard shall betaken, care being same coalitions may bc termed as alot. exercised to exclude some amount of wool from the A-2 DETERMINATION OF SAMPLE SIZE top of the roll. A-2.1 Tests for the conformity to the requirements of A-3.2 Tests for the determination of all characteristics the specification shall be done on each lot separately. specified in this standard shalIbe conducted on each The material to be selected from a lot shall be in of the test specimens drawn from the roll as obtained accordance with Table 8. under A-3.1. A.2.2 These rolls shall be selected at random from the A-3.3 Criteria for Conformity lot and to ensure randomness of selection, random number tables shall be used. In case such a table in The lot shall be declared as conforming to the not available, the following procedure may be requirements of this specification, if the different test adopted: results obtained under A-3.2 meet the corresponding Starting from any roll in the lot, count them as requirements given in the standard individually. 4