IS 269:2015

PM/ IS 269/ 2/ October 2019 BUREAU OF INDIAN STANDARDS Manak Bhawan, 9, Bahadur Shah Zafar Marg, New Delhi – 110002 1 PRODUCT MANUAL FOR ORDINARY PORTLAND CEMENT ACCORDING TO IS 269: 2015 This Product Manual shall be used as reference material by all Regional/Branch Offices & licensees to ensure coherence of practice and transparency in operation of certification under Scheme-I of Bureau of Indian Standards (Conformity Assessment) Regulations, 2018 for various products. The document may also be used by prospective applicants desirous of obtaining BIS certification licence/certificate. 1. Product : IS 269 : 2015 Title : ORDINARY PORTLAND CEMENT No. of Amendments : Nil 2. Sampling Guidelines: a) Raw material : Performance improver (if added) – as per clause 5.1.1 and Table 1 of IS 269 b) Grouping guidelines : Each Grade of OPC shall be tested to cover that Grade of Cement in the licence. c) Sample Size : Ordinary Portland Cement – 8 kg for physical test 1 kg for chemical test Conformity of Raw material per the relevant Indian Standard shall be ensured at the time of GoL/CSoL. 3. List of Test Equipment : Please refer ANNEX – A 4. Scheme of Inspection

and Testing : Please refer ANNEX – B 5. Possible tests in a day : (i) Insoluble Residue (ii) Loss of ignition (iii) Fineness (iv) Setting time 6. Scope of the Licence : “Licence is granted to use Standard Mark on Ordinary Portland Cement as per IS 269 : 2015 for Grades ---------”. Any other aspect required as per the Standard Transverse strength test is optional test as per agreement between purchaser and manufacturer. PM/ IS 269/ 2/ October 2019 2

List of Test Equipment Major test equipment required to test as per the Indian Standard Sl No. Tests used in with Clause Reference Test equipment 1 Fineness Clause 7 Table 3 Blaine’s apparatus variable flow type Stop watch with start-stop mechanism Mercury for calibration Balance, Standard weights Standard Cement Manometer liquid (di-butyl phthalate or light mineral oil.) Mercury of reagent grade or better, Pyknometer Circular discs of filter paper of medium porosity (mean pore diameter 7 μ). Le-Chatelier’s flask Constant temperature water bath to maintain temp. within ± 0.1 ° C 2 Soundness by Autoclave Clause 7 Table 3 Auto clave machine with thermostatic control to maintain pressure of 2.1 MPa for 3 hrs, pressure to be attained within 1-1 ¼ hrs; L-Shape thermometer LC 1 °C Pressure gauge 0-42 kg/cm 2 LC = 0.4 kg/cm 2 Humidity chamber with temperature & RH control 27 ± 2 °C, RH 90 to 100 % Standard bar 308 mm, max Bar moulds 25 x 25 x 282 mm Length comparator with dial gauge Mineral oil for covering moulds 3 Soundness by Le-chatelier Method Clause 7 Table 3 Le-Chatelier’s water bath preferably with thermostatic control raising temperature from 27 ± 2 0 C to boiling in 27 ± 3 minutes

Le-Chatelier’s moulds with weights and cover glasses minimum 8 nos. Humidity chamber with temperature & RH control 27 ± 2 0 C, RH 90 to 100 % Steel scale 12" (304.8 mm) PM/ IS 269/ 2/ October 2019 3 4 Setting time Clause 7 Table 3 Vicat apparatus Needle for Consistency, IST& FST testing Moulds Stop Watch Balance - 1000g ± 0.1g and Standard Weights 1mg to 500 gm Gauging trowel of weight 210 ± 10 g 5 Compressive Strength Clause 7 Table 3 Vibration machine with timer & cube mould fitting assembly 12000 ± 400 vibration per min. Compressive Strength machine Poking Rod , Petroleum Jelly Proving ring with all accessories suitable for calibration of CST machine Tachometer Cube Moulds 70.6 × 70.6 mm, Poking rod Gauging trowel (210 ± 10 g) gauging plate, stainless steel(non-perforated) Standard sand grade 1, 2 and 3 (as per IS 650) Curing tank of appropriate size with water circulation arrangement Graduated glass cylinders 150 to 200 ml Humidity chamber with temperature & RH Control 27 ± 2° C, RH 90 to 100 % 6 Transverse Strength Test Clause 7, Table 3 Moulds Planetary Mixer, Standard Sand Jolting Apparatus, Scraper, Demolding device as per IS 4031 (Part 8) 7 IS 269 : 2015 General equipments for Cement testing

a) To control humidity & temperature in lab 1. Humidity chamber with temperature & RH control 27 ± 2 °C, RH 90 to 100 % 2. Suitable arrangement to demonstrate maintenance of temp. of 27 ± 2 ° C & RH 65 ± 5% constantly b) For cement Sampling Mixing trays –adequate size including trays of 24 partitions for keeping hourly samples c) To control the residue of cement Sieves of size (300, 212, 150, 90, 75 & 45μ) d) To measure temperature Thermometers PM/ IS 269/ 2/ October 2019 4 e) Lab ball mill (motorized) To grind the clinker, slag & gypsum sample in lab ball mill for testing f) To weigh the material 1. Platform type balance 2. Electrical balance 3 Weight box with weights (1 mg - 500 g) 9 General test equipments for chemical testing Clause 6 , Table 2 of IS 269 : 2015 Muffle Furnace with thermostatic control, Range 0 – 1200° C Oven with thermostatic control 0-300° C Heater and hot plate Distillation Assembly Crucible: Platinum or Porcelain / silica Filter paper (No- 1, 40, 41, 42) Desiccators with cover & Desiccant Water bath pH meter/paper Glassware - volumetric flask -0-250 ml, beaker 0-250 ml, measuring cylinder 0-50,100,500, 1000 ml, burette 0-25/50 ml, conical flasks- 0-250 ml, pipette 0-5,10, 25, 50 ml

All chemicals required for complete chemical analysis of cement Tongs including platinum tipped tong Wire gauge with asbestos sheet at the middle Washing bottle Mortar mixer- 4.75 l Glass thermometer All required chemicals as per IS 4032 Ordinary portland cement and Portland clinker testing. 10 Testing arrangement for performance improver as per Clause 5.1.1 and Table 1 of IS 269 : 2015 The above list is indicative only and may not be treated as exhaustive. PM/ IS 269/ 2/ October 2019 5

SCHEME OF INSPECTION AND TESTING 1. LABORATORY - A laboratory shall be maintained which shall be suitably equipped (as per the requirement given in column 2 of Table 1) and staffed, where different tests given in the specification shall be carried out in accordance with the methods given in the specification. 1.1 The manufacturer shall prepare a calibration plan for the test equipments. The following equipments shall be calibrated at a frequency shown against each and records kept. 2. TEST RECORDS – The manufacturer shall maintain test records in various formats, Form 1 to Form 18 for the tests carried out to establish conformity. 3. LABELLING AND MARKING – Labeling and marking shall be as given below: 3.1 STANDARD MARK - The Standard Mark, as specified by BIS, shall be printed or stenciled on each bag or drum of Ordinary Portland Cement or on the label applied to it, provided the material in each bag or package to which the mark thus applied conforms to the specification. The size of the Standard Mark shall be either 160 x 120 mm or 80 x 60 mm for packing in quantity of 50 kg and above. For other packing of lower quantity, a photographic reduction is permitted.

3.2 MARKING - As per the requirements of IS 269: 2015. 3.2.1 In addition to above, following marking shall also be marked: a) Name of original manufacturer of cement with BIS licence number in case of repacking unit. b) Any other marking required under provisions of Legal Metrology Act, 2009 and Legal Metrology (Packaged Commodities) Rules, 2011 framed thereunder. Sl. No. TEST EQUIPMENT FREQUENCY OF CALIBRATION 1. Blaine’s apparatus Daily with licensee’s own Standard cement sample and monthly with standard cement samples supplied by NCCBM. 2. Compressive strength Testing machine Once in a month with Licensee’s own Proving Ring and the Proving Ring shall be Calibrated once in two years from a NPL/NABL Accredited Calibrating body or NPL or NPL accredited Proving Ring manufacturer. 3. Autoclave pressure gauge Once in a month by licensee’s own dead weight pressure gauge tester OR once in six months from accredited calibrating body or NPL/NABL accredited manufacturer of such gauges. 4. Vibration machine Once in a month by licensee’s own Tachometer. The tachometer shall be calibrated once in a year from NPL/NABL accredited outside agency.

5. Dead weight pressure gauge Tester (if available) Once in four years from NABL accredited Tester (if available) Lab or OEM (original Equipment manufacturer) having NPL/NABL accredited calibrator. PM/ IS 269/ 2/ October 2019 6 3.2.2 All the information including BIS Standard Mark except Manufacturers Registered Trade Mark shall be applied on each bag in BLACK COLOUR. Note : 1. For each calendar year, the first week shall be counted as 7 days from 1 st of January and subsequent weeks numbered serially accordingly. The bags shall be marked as W 0l/MM/YY...... W 51/MM/YY....... etc. 2. Label mentioned at 3.1 and 3.2 above shall be attached to the seal of the container. The seal shall be of such a design that it shall automatically get destroyed on opening. 3. The colour of the bag and background colours should be in contrast to the colour of the Standard Mark and the details so that the markings are conspicuous. 4. CONTROL UNIT – 4.1 For manufacturing units of Ordinary Portland Cement: The tests, as indicated in Table 1 attached and at the levels of control specified therein, shall be carried out on the whole production of the factory which is covered by this scheme and appropriate records

maintained in accordance with clause 2 above. 4.2 For packing of Ordinary Portland Cement at bulk cement terminal: The tests, as indicated in Table 2 attached and at the levels of control specified therein, shall be carried out on the whole packing of Ordinary Portland Cement and appropriate records maintained in accordance with clause 2 above. 4.2.1 For bulk packing units as per clause 4.2, all cement of one consignment received shall constitute one batch. 4.2.2 Batch mixing may be permitted for packing units, which are extended packing terminals of the same cement manufacturer (licensee) subject to packing units obtaining test certificates from the manufacturer and keeping proper records. If the cement is received from different units of the same manufacturer (different licensees) batch mixing of cement is not permitted. The Batch integrity shall be ensured at all stages of packing and the packer shall maintain appropriate controls and checks to ensure that there is no chance of mix up of different batches. Adequate care shall be taken to avoid spoilage during handling, packing and storage. 4.2.3 If bulk packing unit is instructed by BIS for suspension of licence due to the failure of

the samples, such instruction will automatically apply to the original manufacturer of the cement, as per relevant suspension of licence guidelines. An undertaking to this effect shall be obtained from the bulk packers and the original cement manufacturer. 4.2.4 Test Certificate of each original batch of cement shall be obtained from the supplier and test results recorded. On the basis of tests and inspection, the decision regarding conformity or otherwise of the consignment/batch to a given requirement shall be taken. 4.3 WEIGHMENT – One filled bag from each nozzle shall be taken at random twice in each shift of operation and weight checked in case of electronic packers with recorders. In all other cases one filled bag from each nozzle shall be checked once in two hours. The records shall be maintained in Form 1. The bag shall be so chosen for weighment such that bags from each nozzle are taken for weighment. The weighing and packing machines shall be adjusted as and when necessary in such a way that net quantity of each bag shall be in accordance with the PM/ IS 269/ 2/ October 2019 7 tolerances given in Annex B and clause 10.1.1 of IS 269 : 2015. Such adjustments for each

nozzle shall be recorded in Form 1 under remarks column. 4.3.1 For packing of Ordinary Portland Cement in bulk cement terminal weighment of hourly check of mass of drums also shall be done in addition to weighment of bags mentioned in para 4.3 above. The records of weighments shall be maintained in Forms 10 and 12. 4.4 RAW MATERIALS 4.4.1 Routine analysis of various raw materials used in the manufacture of Ordinary Portland Cement shall be made at intervals of a month or whenever there is a change in the source/mine area stratification whichever is earlier and appropriate records of the analysis and of the Physical composition of the mixtures shall be maintained in Form 2. This analysis is not applicable for Packing Units of Ordinary Portland Cement at bulk cement terminal. 4.5 PERFORMANCE IMPROVER – Manufacturer shall declare performance improver and its percentage added in the ordinary portland cement. The details of such performance improver added to cement and its percentage shall be printed on bags/package of cement. 4.6. PACKING - The Cement shall be packed in bags as specified in clause 10 of

IS 269: 2015. A test certificate either from the manufacturer or from any recognized testing laboratory shall be received along with each consignment of bags. Alternatively the samples of bags from each consignment shall be tested by the cement manufacturer either in his own laboratory or any other BIS recognized laboratory before they are used for packing cement. No testing would be necessary if the bags carry BIS Certification Mark. The bag shall be in good condition at the time of packing. 5. LEVELS OF CONTROL - The tests as indicated in column 1 of Table 1 and the levels of control in column 3 of Table 1, shall be carried out on the whole production of the factory which is covered by this plan and appropriate records maintained in accordance with clause 2 above. 5.1. PRODUCTION DATA - The licensee shall send to BIS a statement of quantity produced, marked and exported by him and the value thereof at the end of each quarter of the operative period as per the enclosed proforma and shall also submit these details to BIS at the end of the operative year duly authenticated by a Chartered Accountant. 6. REJECTIONS – Disposal of non-conforming product shall be done in such a way so as to

ensure that there is no violation of provisions of BIS Act, 2016. PM/ IS 269/ 2/ October 2019 8 Table 1 – Levels of Control (Grinding/Packing Unit) (1) (2) (3) TEST DETAILS Test equipment requirement R: required (or) S: Sub- contracting permitted RECOMMENDED LEVELS OF CONTROL Clause Requirement Test Methods Clause Reference Number of sample Frequency Remark Cement Grinding/Blending Cement Packing 5.1 and 5.1.1, Table 1 Performance improver 5.1.1 IS 269 S One One sample shall be tested from each supplier once in a month/whenever there is change of source of supply of material as per relevant Indian Standard as given in Table 1 of IS 269: 2015. No further testing required if accompanied with test certificate or ISI marked. 6 Table 2 Chemical Requirement i) LSF 6 IS 269 R One Daily Composite sample Weekly composite sample - ii) AF Ratio 9 IS 269 R One Daily Composite sample Weekly composite sample - iii) Insoluble residue 6 IS 269 IS 4032 R One Daily Composite sample Weekly composite sample - iv) Magnesia 6 IS 269 IS 4032 R One Daily Composite sample Weekly composite sample - v) Total Sulphur content calculated as sulphuric anhydride (SO 3 ) 6 IS 269 IS 4032

R One Daily Composite sample Weekly composite sample - vi) Loss on ignition 6 IS 269 IS 4032 R One Daily Composite sample Weekly composite sample - vii) Chloride Content 6 IS 269 IS 4032 R One - Weekly composite sample This test shall also be carried out whenever there is any change in source of any raw material. PM/ IS 269/ 2/ October 2019 9 viii) Alkali Content 6 - S One - - Pl see note under Table 2 of IS 269: 2015. 7 Table 3 Physical Requirement i) Fineness 7 IS 269 IS 4031 (Part 2) R One 1. Every alternate hourly from each mill separately. 2. Daily Composite sample Daily Composite sample - ii) Soundness (Le-Chatelier method and Autoclave method) 7 IS 269 IS 4031(Part 3) R One Daily Composite sample Daily Composite sample - iii) Setting Time 7 IS 269 IS 4031 (Part 5) R One One sample per shift (Composite sample) Daily Composite sample - iv) Compressive strength 7 IS 269 IS 4031 (Part 6) R One Daily Composite sample Daily Composite sample - v) Transverse strength (Optional) 7 IS 269 IS 4031(Part 8) S One Weekly composite sample Weekly composite sample - NOTES – 1. Composite sample shall be made out of hourly samples for the required period (Pl see IS 3535 Methods of sampling hydraulic cements).

If cement is manufactured using same proportion of raw materials from more than one cement mill, sample from each mill shall be tested for fineness as per the above table. For all other parameters composite samples from all the mills shall be tested. If cement is manufactured using different proportion of raw materials from more than one cement mill, sample from each mill shall be tested for all requirements as per the above table. 2. For manufacturing units where there is no packing silo and cement is packed directly from cement grinding, the frequency of tests specified for cement grinding stage would apply for the various tests to be carried out on samples taken from cement mill spouts along with weekly chloride content test. PM/ IS 269/ 2/ October 2019 10 Table 2 Level of Control (Bulk Packing Unit) (1) (2) (3) TEST DETAILS Test equipment requirement R: required (or) S: Sub-contracting permitted RECOMMENDED LEVELS OF CONTROL Clause Requirement Test Methods Clause Reference Number of samples Frequency Remarks 6 , Table 2 (iii) Insoluble Residue 6 IS 269 IS 4032 R One Each batch To be tested in laboratory at bulk terminal packing unit. 6, Table 2 (vi) Loss on Ignition 6 IS 269

IS 4032 R One Each batch 7, Table 2 (i) Fineness 7 IS 269 IS 4031(Part 2) S One Each batch - 7, Table 2 (ii) Soundness 7 IS 269 IS 4031(Part 3) S One Each batch 7, Table 2 (iii) Setting Time 7 IS 269 IS 4031(Part 5) S One Each batch 7, Table 2 (iv) Compressive strength 7 IS 269 IS 4031(Part 6) S One Each batch PM/ IS 269/ 2/ October 2019 11 Form No. 1 FORMAT FOR MAINTENANCE OF TEST RECORDS WEIGHMENT CONTROL AT PACKING STAGE Date Shift Time (Hourly) No. of Bags Net mass of bags from nozzles Remark. Form No. 2 RAW MATERIAL TESTING Date of receipt of material Date of testing Name of Material Source of supply and consignment No. Details of analysis for specified requirements Form 3 PRODUCTION DATA (POST GRINDING DETAILS OF PRODUCTION ACCEPTED AND REJECTED FOR STANDARD MARK) Shift Quantity Passed for Standard mark Rejected Remark Form No. 4 CLINKER CHEMICAL COMPOSITION (DAILY COMPOSITE SAMPLE) Date of manufacture Total loss on ignition Insoluble residue Alkali content as Na 2 O @ C 3 S C 3 A C 3 S+ C 2 S SO 3 MgO Chloride Free lime LSF Alumina factor Sample Pass/Fail Remarks @ Alkali content test to be conducted as and when desired by Purchaser Form No. 5 CLINKER GROUND WITH GYPSUM (DAILY COMPOSITE SAMPLE)

Date of grinding Fineness Soundness Setting time Compressive strength Sample Pass/Fail Remark Le-Chatelier Autoclave Initial Final 3 days 7 days 28 days PM/ IS 269/ 2/ October 2019 12 Form 6 ORDINARY PORTLAND CEMENT (GRINDING/ BLENDING) (Daily/Weekly Composite sample) @ Alkali content test to be conducted as and when desired by Purchaser Form No 7 ORDINARY PORTLAND CEMENT GRINDING (For Alternate Hourly Sample) Date of grinding Time Fineness Setting Time Initial & Final Sample Pass/Fail Mode of disposal or action taken if sample fails Form No 8 ORDINARY PORTLAND CEMENT PACKING STAGE (Daily/Weekly Composite Sample) @ Alkali content test to be conducted as and when desired by Purchaser Form No 9 CALIBRATION Sl. No Date of calibration Result of Calibration (Test records indicating details of standard values and observed values for each equipment to be kept in proforma for which various columns be devised; as required) Name of equipment Action taken if equipment found defective Sl.No. (If any) & Remarks Note: The above records are to be kept separately for each equipment. Date of grinding LSF AF IR MgO Total Sulphur calculated as SO 3 LOI Chloride Content Alkali content @ Fineness Soundness

(Le- chatelier & Autoclave) Setting Time Initial & Final Compressive strength Transverse Strength Sample Pass/Fail Action taken if sample fails Date of Packing LSF AF IR MgO Total Sulphur calculated as SO 3 LOI Chloride Content Alkali content @ Fineness Soundness (Le- chatelier & Autoclave) Setting Time Initial & Final Compressive strength Transverse Strength Sample Pass/Fail Action taken if sample fails PM/ IS 269/ 2/ October 2019 13 RECORDS TO BE MAINTAINED AS PER TABLE-2 OF SIT (BY BULK PACKING UNIT) Form No. 10 FORMAT FOR MAINTENANCE OF TEST RECORDS WEIGHMENT CONTROL AT PACKING STAGE HOURLY CHECK OF MASS OF DRUMS Date Time (Hourly) Condition of Drums Net quantity of cement Record of calibration of weighing scale and Date of calibration. Form No. 11 FORMAT FOR MAINTENANCE OF RECORDS FOR THE CONDITIONS OF THE EMPTY DRUMS/BULKERS FOR PACKING CEMENT Date No. of empty drums/Bulkers checked No. of empty drums/Bulkers rejected Reasons/Remarks Sign of firms inspector Form No. 12 FORMAT FOR MAINTENANCE OF TEST RECORDS WEIGHMENT CONTROL AT PACKING STAGE HOURLY CHECK OF MASS OF BAGS Date Shift Time(Hourly) No of Bags Net quantity of Bags from Nozzles Records of calibration/date of calibration of nozzles

Form No. 13 RECEIPT OF CEMENTS Date of receipt Batch No. Supply received from Test Certificate No PM/ IS 269/ 2/ October 2019 14 Form No. 14 CEMENT DISPATCH DATA FROM PACKING Date Quantity Passed for Standard Mark Rejected (if any) Reasons for not marking/Method of disposal Form No 15 & 16 TEST DONE AT FACTORY (At receipt stage and at bulk packing terminal) Date Batch No. LOI IR Fineness Setting Time Remarks Form No 17 & 18 ORDINARY PORTLAND CEMENT (PHYSICAL TEST REPORT) (At receipt stage and at bulk packing terminal) Date Batch No. Test Report Soundness Compressive Strength Remarks LC AC 3 days 7 days 28 days Note-1: Sub-contracting is permitted to a laboratory recognized by the Bureau or Government laboratories empaneled by the Bureau. Note-2: The control unit and levels of control as decided by the Bureau are obligatory to which the licensee shall comply with.