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IS 201: Quality Tolerance for Water for Textile Industry--Specification (Second Revision) PDF

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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 201 (1992, Reaffirmed 2008): Quality Tolerance for Water for Textile Industry--Specification (Second Revision). UDC 543.3 : 677 “!ा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 201 : 1992 REAFFIRMED \RfFr eli futJ: fcr"fup;c CffiT ~ CfiT TT(lT ~~ - ( ~~~T ,!;:r~r&1ur ) Indian Standard QlTALITY TOLERANCE FOR WATER FOR TEXTILE INDUSTRY - SPECIFICATION ( Second Revision) UOC 543 '3 : 677 © BIS 1992 U EAU OF IN I N STAN A S MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG NEW DELHI 110002 October 1992 Price Group 1 , WaterS.ectional Committee, CHD 013 FOREWORD This Indian Standard ( Second Revision) was adopted by the Bureau of Indian Standards, after the draft finalized by the Water Sectional Committee had been approved by the Chemical Division Council. This Indian Standard was first published in 1950. Subsequently it was revised in 1964 incorporating requirements for corrosivity, colour, turbidity, manganese, and mould spores and odour. Objection to colour and turbidity in water used in textile industry is because of the fact that they cause streaking and straining. Iron and manganese strains cause other difficulties in processing. even at low concentrations. The objection to hardness is in many operations, especially, in scouring where soap curds may be produced, and in process where deposits of precipitated calcium and magnesium may stick to the material. Based on the experience gained over the years, the technical committee responsible for the formulation of this standard decided to revise it. In this revision requirements for sulphates, chlorides, aluminium and bicarbonates have been incorporated while the tolerance limits for total hardness and iron have been suitably modified. In the preparation of this standard, considerable assistance has been obtained from Special Technical Publication No. 148-D Manual on Industrial Water and Industrial Waste Water, Second Edition 1959, published by the American Society for Testing and Materials, USA. This standard is intended chiefly to cover the technical provisions relating to water for textile industry, and it does not include all the necessary provisions of a contract. 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 (revised)'. The' number of significant places retained in the rounded off value should be the same as that of the specified value in this standard. AMENDMENT NO.1 SEPTEMBER·1994 IS 201: 1992 QUALITY TOLERANCE FOR WATER FOR INDUSTRY - SPECIFICATION (Second Revision) (Page 2, Table 1, Note 2) - Substitute '200' for '2' in Hne 2. (CHD 013) Reprography Unit, 81S, New Delhi, India IS 201 : 1991 Indian Standard QUALITY TOLERANCE FO WATER FOR TEXTILE INDUSTRY - SPECIFICATION ( Second Revision ) 1 SCOPE IS No. Title 3025 Methods of sampJing and 1.1 This standard prescribes the quality tole ( Part 24 ) : 1986 test ( physical and chemical) rances for water for textile industry. for water and waste water: 2 REFERENCES Part 24 Sulphates (first revision) 2.1 The following Indian Standards are the 3025 Methods of sampling and necessary adjuncts to this standard: ( Part 32 ) : 1988 test ( physical and chemical) IS No. Title for water and waste water: Part 32 Chlorides (first 1622 : 1981 Methods of sampling and revision) microbiological examination 8914 : 1988 Quality tolerance for water of water ( first revision) for vitreous enamel industry 3025 : 1964 Methods of sampling and ( first revision) test ( physical and chemical) for water used in ind ustry 3 TOLERANCES 3025 Methods of sampling and 3.1 Corroshity ( Part 1 ) : 1986 test ( physical and cheJ,11ical ) for water and waste water: The water shall be non-corrosive when tested Part 1 Sampling (first as per the method prescribed in Annex A. revision) 3025 Methods of sampling and 3.2 Algae and Mould Spores ( Part 4 ) : 1984 test ( physical and chemical) The water shall be free from algae and mould for water and waste water: spores when tested according to the method Part 4 Colour (first revision) prescribed in IS 1622 ; 1981. 3025 1\1ethods of sampling and ( Part 10 ) : 1984 test ( physical and chemical) 3.3 Odour for water and waste water: Part 10 Turbidity (first The water shall be free from objectionable revision) odour. .3025 Methods of sampling and 3.4 The water shall also comply with the ( Part 11 ) : 1983 test ( physical and chemical) tolerances given in Table 1, when tested accord for water and waste water: ing to methods prescribed in col 6 of Table 1. Part 11 pH value (first revision) 4 SAMPLING 3025 Methods of sampling and 4.1 Representative test samples of water shall ( Part 21 ) : 1983 test ( physical and chemical) for water and waste water: be dra Wll as prescribed in IS 3025 ( Part 1 ) : 1986 and IS 1622 : 1981. Part 21 Total hardness ( first revision) 5 TEST METHODS 3025 Methods of sampling and ( Part 23 ) : 1986 test ( physical and chemical) 5.1 Tests shall be carried out as prescribed in for water and waste water: Annex A and parts of IS 3025. References to Part 23 Alkalinity ( first the relevant clauses and parts of IS 3025 is given revision) in col 6 of Table 1. IS 201: 1992 Table 1 Tolerances for Water for Textile Industry ( Clauses 3.4 and 5.1 ) 81 Characteristic Tolerances for Methed of Test, Ref to No. Bleaching, Dyeing Wool Purposes and Subsequent Scouring Processing (1) (2) (3) (4) (5) (6) i) Colour ( Hazen units), Max 20 5 70 IS 3025 ( Part 4 ) : 1983 ( see Note 1 ) ii) TlHbidity, NTU, Max 2 2 2 IS 3025 ( Part 10 ) : 1984 iii) pH -----6-0 to 8·5------ IS 3025 ( Part 11 ) : 1983, iv) Total hardness ( as CaC03 ), 50 2 2 IS 3025 ( Part 21 ) : 1983- mg/I, lYfax (see Note 2) v) Jron ( as Fe ). mg/I, Max 0-25 0'1 0-1 32 of IS 3025 : 1964 vi) Manganese ( as Mn ), mgjl. Max 0'10 0-10 0-10 35 of IS 3025 : 1964 vii) Iron ( as Fe ) and Manganese ( as Mn ) 0-25 0-1 0-1 32 and 35 of IS 3025 : added together, mgll, Max 1964 viii) Aluminium (as Al ), mg/I, Max 0'1 0'1 0'1 31 of IS 3025 : 1964 ix) Sulphate ( as SO, ), mg/I. lYfax 100 IS 3025 (Part 24 ) : 1986, x) Chloride ( as Cl ), mg/I, Max 100 IS 3025 ( Part 32 ) : 1988 xi) Total alkalinity ( as CaC03 ), 150 150 150 IS 3025 (Part 23) ; 1986- mg/I. Max NOTES 1 When dark or medium dark dyeing is done, a relaxed maximum limit 20 may be permissible, but for whites and delicate shades, the limit shall not be relaxed. 2 For processes which are not sensitive to hardness salts or internal sequestering agents are used, a maximum limit of 2 permissible. ANNEX (Clauses 3.1 and 5.1 ) TEST FOR CORROSIVITY A-O· PRINCIFLE OF 1 HE lVIEIHOD A-2PROCEDURE A·f).l lhis qualitative test determines the A-2.I Determine the pH (see A-O.1.1) of the stabjlity of a water with respect to calcium sample as prescribed in IS 3025 (Part 11 ) : 198J carbonate. The pH of the water is determined or total alkalinity as prescribed in IS 3025- before and after treatment with calcium carbo ( Part 23 ) : 1986. nate. Any increase in pH as a result of this test irdicates corrosivity. A-2.2 Take the glass-stoppered bottle containing A-O.l.I If, due to non-availability of a pH washed calcium carbonate (see A-I.I), fill it meter, it is inconvenient to determine pH, the up with the sample and insert the stopper with test is carried out by determining alkalinity of out allowing any air bubble to remain. Shake the water. well to bring the powder in suspension through out the bottle and set aside. Repeat shaking at A-I REAGENT frequent intervals for about 4 hours. Finally, allow to stand overnight and then filter rapidly A .. 1.1 Predpitated Calcium Carbonate - pure. by decanting through a fiiter paper. Determine: Place about 10 g of the powdered material in the pH or total alkalinjty of the filtrate. a 2S0-ml glass-stoppered bottle. Wash thrice with portions of the sample to be tested, by A-2.3 The water shall be considered non· stirring, allowing to settle for several minutes corrosive if the pH or total alkalinity determined and then pouring off the supernatant liquid while in A-2.2 is not greater than that determined, still turbid. in A. .. 2.1. 2

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