TaxTMI 
TaxTMI 
Compliance of imported consignments of Boric Acid (Technical Grade) with notified Bureau of India Standards (Standards for Boric Acid) Order, 2019
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....ce of Polishing Compounds comprising of Sulphate and Chloride in Boric Acid (Technical Grade) within the specified range. b. Packing of Boric Acid (Technical Grade) in jute bags with suitable liner inside. 3. It is requested that necessary action may be taken to sensitize officers under your jurisdiction to undertake checking of all imported consignments of Boric Acid to ensure strict compliance with the specifications prescribed in IS 10116:2015 (Reaffirmed in 2020) for Boric Acid (Technical Grade). 4. The difficulties, if any, may be brought to the notice of the Board. 5. Hindi version follows. Encls: as stated above. Yours faithfully, (Radhe Krishna) Under Secretary (Cus-.III) Email: [email protected] Tele: 011 23094012 MINISTRY OF AGRICULTURE AND FARMERS WELFARE (Department of Agriculture, Co-operation and Farmers Welfare) ORDER New Delhi, the 16th May, 2019 S.O. 1766 (E).- In exercise of the powers conferred by sub-section (1) and (2) of section 16 of the Bureau of Indian Standards Act, 2016 (11 of 2016), the Central Government, after consulting the Bureau of Indian Standards, is of the opinion that it is ....
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....¤®à¤¾à¤¨à¤• बà¥à¤¯à¥‚रो BUREAU OF INDIAN STANDARDS मानक à¤à¤µà¤¨, 9 बहादà¥à¤°à¤¶à¤¾à¤¹ ज़फर मारà¥à¤—, नई दिलà¥à¤²à¥€-110002 MANAK BHAVAN, 9 BAHADUR SHAH ZAFAR MARG NEW DELHI-110002 www.bis.org.in www.standardsbis.in April 2015 For BIS use only, New Delhi:2020-05-26 10:39:32 Price Group 5 Inorganic Chemicals Sectional Committee, CHD 01 FOREWORD This Indian Standard (First Revision) was adopted by the Bureau of Indian Standards, after the draft finalized by the Inorganic Chemicals Sectional Committee had been approved by Chemical Division Council. Boric acid is used in the manufacture of glass, ceramics, abrasives, metal alloys, electrolytic condensers, explosives, nuclear energy, cosmetics and other industries. This standard covers specification for all these uses, except cosmetics which is covered under a separate standard, IS 263: 1990 'Boric acid for cosmetic industry-Specification'. This standard was first published in 1982. In this revision, require....
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....here shall be three grades of the material depending on the use, namely, a) Special quality (SQ), for use in capacitors, electronics nuclear energy, foundries and fire proofing of workman's apparel; b) Technical (TECH), for use in glass, ceramics, explosives, refractories, paints, chemicals, dye intermediates, electroplating, leather, adhesives and enamel industries, talc powder, ramming mass and as carom board powder; and c) Explosive. 4 REQUIREMENTS 4.1 Description 4.2 Special quality grade (SQ) material shall be in the form of granules only. The technical grade (TECH) and explosive grade material shall be in the form of granules, powder, crystals or flakes. Material of all grades shall be free from odour, dirt, foreign matter and visible impurities. 4.3 The material, when tested according to the methods prescribed in Annex A, shall comply with the requirements given in Table 1. Reference to the relevant clauses of Annex A is given in col 5 of the Table 1. 4.4 Additional Requirement for Technical Grade Boric Acid 4.5 The technical grade boric acid shall also comply with the following additional requi....
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....; c) Net mass; d) Date of manufacture; and e) Batch Number. 5.3 BIS Certification Marking The product may also be marked with Standard Mark. 5.3.1 The use of the Standard Mark is governed by the provision of Bureau of Indian Standards Act, 1986 and the Rules and Regulations made thereunder. The details of conditions under which the licence for the use of Standard Mark may be granted to manufacturers or producers may be obtained from the Bureau of Indian Standards. 6 SAMPLING The method of drawing representative samples of the material and the criteria for conformity shall be as prescribed in Annex B. ANNEX A (Clauses 4.2, 4.3, 4.4 and Table 1) METHODS OF TEST FOR BORIC ACID A-1 QUALITY OF REAGENTS Unless specified otherwise, pure chemicals and distilled water (see IS 1070) shall be used in tests. NOTE Pure chemicals' shall mean chemicals that do not contain impurities which affect the result of analysis. A-2 BORIC ACID A-2.1 Reagents A-2.1.1 Mannitol (or Sorbitol)-Neutral. The reagent shall satisfy the following test: Five gram of the reagent dissolved in 50 ml of carbon 2 dioxide free w....
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.... mass being taken with the dish covered by the lid. Spread the boric acid evenly in the dish, by gentle tapping and shaking. Keep the dish with the lid off, in an oven at 40 ± 2°C for 4 h. At the end of the period, transfer the dish to a vacuum desiccator and connect the desiccator to the pump. The final pressure inside the desiccator, when steady conditions have been attained, should be not more than 200 mm of mercury. After the minimum pressure has been reached, leave the desiccator connected to the vacuum for 1 h. Disconnect the desiccator from the vacuum line and allow to stand under vacuum at room temperature for 12 h. Break the vacuum by admitting dry air through a guard tube containing fused calcium chloride. Weigh the dish with the cover on. Use the dried material for test in A-2. A-3.3 Calculation Moisture, percent by mass = 100 m M M₠= mass of the dried residue,,in g; and =mass of the material taken for the test, in g. M A-5 TEST FOR LEAD A-5.0 Outline of the Method Heavy metal is determined by comparing the colour produced by the material with hydrogen sulphide solution against ....
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....f the material for SQ grade and 0.02 g in case of explosive grade in 25 ml of water and transfer to a Nessler cylinder. Add 2 ml of hydrochloric acid, 30 mg of ammonium persulphate and 15 ml of butanolic potassium thiocyanate solution. Make up to 100 ml, shake vigorously for 30 s and allow the liquids to separate. Carry out a control test in another Nessler cylinder with 1 ml of standard iron solution and the same quantities of other reagents in the same total volume of the reaction mixture. Compare the colour of the butanol layer in the two sets. A-6.3.1 The limits prescribed in Table 1 for SQ grade and and 4.4 for explosive grade shall be taken as not having been exceeded, if the colour of the butanol layer in the test with the material is not darker than the colour produced in the control test. A-7 CALCIUM A-7.1 Apparatus A-7.1.1 Platinum Basin A-7.2 Reagents A-7.2.1 Methanol A-7.2.2 Hydrochloric Acid-see IS 265. A-7.2.3 Sulphuric Acid- - see IS 266. A-7.2.4 Strong Ammonia Solution A-7.2.5 Ammonia Ammonium Chloride Buffer Solution A-7.2.6 Sodium Sulphide Solution A-7.2.7 EDTA Solution 0.01 M. - ....
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....0 g of boric acid sample and add 200 ml of water. Cover and place it on a hot plate bringing just to boil to dissolve the crystals and then cool to room temperature. A-10.3.2 For SQ Grade Filter all samples and standards through No. 4 sintered glass funnel using suction. Dilute 50 ml sample solution to 100 ml in a Nessler cylinder. Add 5 ml of silver nitrate reagent, at once stir thoroughly, stand in the dark for 10 min. Carry out test in another Nessler cylinder with 0.8 ml of standard chloride solution B for SQ grade. Compare turbidity produced 5 min after the addition of silver nitrate. A-10.3.3 For Technical Grade and Explosive Grade Filter all samples and standards through No. 4 sintered glass funnel using suction. Dilute 2.5 ml sample solution to 100 ml in a Nessler cylinder. Add 5 ml of silver nitrate reagent, at once stir thoroughly, stand in the dark for 10 min. Carry out test in another Nessler cylinder with 3 ml of standard chloride solution A for explosive grade. For technical grade, carry out test with 5 ml and 15 ml of standard chloride solution A in two separate Nessler cylinders. Compare turbidity pro....
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....l of standard sulphate solution (B) and the same quantities of the reagents. In the same total volume of the reaction 5 For BIS use only, New Delhi:2020-05-26 10:39:32 IS 10116: 2015 mixture compare the turbidity produced in the two cylinders. A-11.3.3 For Technical Grade and Explosive Grade Weigh 20 g of boric acid sample and add 100 ml of water. Cover and heat bringing just to boil to dissolve the crystals; then cool to room temperature. Filter 5 ml of the supernatant clear liquid to a Nessler cylinder. Add 2 ml of acetic acid and 5 ml of barium sulphate reagent, dilute to the mark. Carry out a control test in another Nessler cylinder with 10 ml of standard sulphate solution (A) and the same quantities of the reagents for explosive grade. For technical grade, carry out a control test with 15 ml and 25 ml of standard sulphate solution (A) in two separate Nessler cylinders. In the same total volume of the reaction mixture compare the turbidity produced in the control and test Nessler cylinders. A-11.3.4 For SQ and Explosive Grade The relevant limit prescribed in Table 1 for SQ grade and 4.4 for explosive gra....
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.... B-1.3 Precautions shall be taken to protect the samples, the material being sampled, the sampling instrument and the containers for samples from adventitious contamination. B-1.4 To draw a representative sample, the contents of each container shall be mixed thoroughly by suitable means. B-1.5 The sample shall be placed in suitable, clean and dry glass containers on which the material has no action. 6 For BIS use only, New Delhi:2020-05-26 10:39:32 B-1.6 The sample containers shall be of such a size that they are almost completely filled with the sample B-1.7 Each sample container shall be sealed airtight after filling and marked with full details of sampling, date of sampling and year of manufacture of the material. B-2 SCALE OF SAMPLING B-2.1 Lot All the containers of the same grade in a single consignment of the material, drawn from the same batch of manufacture shall constitute a lot. If a consignment is declared or known to consist of different batches of manufacture or of different types of containers, the containers of the same type belonging to the same batch shall be grouped together and each ....
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....s shall be immediately transferred to thoroughly dried bottles which are then sealed airtight with stoppers and labeled with all the particulars of sampling given under B-1.7. The material in each such sealed bottle shall constitute an individual test sample. These individual samples shall be separated into three identical sets of samples in such a way that each set has an individual test sample representing each container selected. One of these three sets shall be sent to the purchaser, another to the supplier and the third shall be used as referee sample. B-3.2 Referee Sample The referee sample shall consist of the composite sample (see B-3.1.2) and a set of individual samples (see B-3.1.3) marked for this purpose and shall bear the seals of the purchaser and the supplier. These shall be kept at a place agreed to between the purchaser and the supplier and shall be used in case of dispute between the two. B-4 NUMBER OF TESTS B-4.1 Tests for the determination of boric acid shall be conducted on each of the individual samples. B-4.2 Tests for the remaining characteristics shall be conducted on the composite sample.....
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....hase IV, Gurgaon 122002) In personal capacity (WW2, First Floor, Malibu Town, Sohna Road, Gurgaon) BIS Directorate General Member Secretary Representative(S) SHRI M. R. GANDHI (Chairman) DR R. S. SHUKLA (Alternate) SHRI D. K. JAIN SHRI K. SRINIVASAN DR H. S. DAS (Alternate) DR A. V. R. REDDY DR S.N. ACHARY (Alternate) DR C. J. SHISHOO SHRI S. YELLORE (Alternate) REPRESENTATIVE DR D. K. DAS DR SUBHAS CHANDRA (Alternate) SHRI R. S. BAGHEL SHRI A. D. SHAH REPRESENTATIVE DR A. PRAMANIK (Alternate) SHRI ROHIT KUMAR MADHAVJI SHRI SATYAN ROHIT KUMAR (Alternate) DR K JEEVA RATNAM DR PRAVEEN R LIKHAR (Alternate) DR S. K. PANDEY SHRI S. D. PANDIT (Alternate) REPRESENTATIVE DR DARBHA SRINIVAS DR SANTANU BHATTACHARJEE DR TRILOCHAN MISHRA (Alternate) SHRI S. K. CHAURASIYA SHRI PRABHAT K. GUPTA SHRI NAHAR SINGH (Alternate) DR Y. C. NUHAWAN DR (MS) A. BISWAS (Alternate) SHRI R. A. JOSHI DR K. C. PATHAK (Alternate) DR IZZATULLAH DR SHARMA (Alternate) SHRI DHANAVADAN MODI DR (MS) LAXMI RAWAT SHRI B. GOVINDAN (Alternate) REPRESENTATIVE SHRI R. J. BUCH SHRI M. S....