IS 15636:2012

Table 27 to 30 IS 15636 R One or more Once in three months 5 Marking 5.1 to 5.4 Annex E & F IS 15636 R Each Tyre 6 Type Approval / Type Test 6.1 to 6.3, Table 31 and Annex ‘G’ IS 15636 R As per Table 31 Each Family of Tyre At the time of initial approval or whenever there is any change in already approved family of tyres. Definition of “Variety’ – The tyre defined uniquely by Tyre Size Designation, Structure, Speed category, Load Index, Ply Rating and Category of use. For example, ‘9.00 R 20 8 PR 129/127 M’ and ‘9.00 R 20 12 PR 129/127 M’ are two different varieties of tyres. Note-1: Sub-contracting is permitted to a laboratory recognized by the Bureau or Government laboratories empanelled by the Bureau. Note-2: The control unit and levels of control are obligatory, to which the licensee shall comply with. 4 PM/ IS 15636/ 2/ August 2021

RAW MATERIAL CONTROL (Clause 4.1 of SIT) Sl No Item Tests 1 Natural Rubber a) Visual inspection b) Moisture content c) Ash content d) Dirt content e) Viscosity 2 Synthetic Rubber a) Moisture content b) Ash content c) Viscosity d) Compound testing 3 Lattices a) Contents b) Viscosity c) TSC 4 Carbon Black a) Moisture content b) Ash content c) DBP value d) Iodine number e) Sieve residue 5 Activators a) Moisture content b) Sieve residue c) ASSAY d) Ash content e) HCL insoluble f) Acid number 6 Vulcanising Agents a) Melting point b) Acetone insoluble c) Specific gravity d) Softening point e) Solubility 7 Process Oil a) Aniline point b) Viscosity c) Specific gravity 8 Tyre Cord a) Warp sheets i) Breaking strength ii) Percentage elongation iii) Twist iv) Moisture content b) Nylon square woven fabric i) Strip and grab ii) Adhesion strength iii) EPI 9 Bead Wire a) Breaking strength b) Percentage elongation c) Torsion d) Bend test e) Adhesion f) Copper coating 10 Solvent a) Specific gravity b) Distillation range 5 PM/ IS 15636/ 2/ August 2021

भारतीय मानक ब्य ू रो BUREAU OF INDIAN STANDARDS मानक भवन, ९, बहाद ु र शाह ज़फ़र मार्ग Manak Bhawan, 9, Bahadur Shah Zafar Marg नई ददल्ली- ११०००२ New Delhi – 110002 उत्पाद मैन्य ु अल आई एस 15636: 2012 के अन ु सार स्वचलन वाहन – व्यावसाययक वाहनों के ललए वायिल टायर- आड़ी और रेडियल प्लाई के ललए दस्िावेज़ संख्या – पी एम/आई एस 15636/2/अगस्ि 2021 भारिीय मानक ब्य ू रो की स्कीम-I (अन ु रूपिा म ू लयाांकन) ववयनयम , 2018 के िहि यह उत्पाद मैन्य ु अल प्रमाणीकरण के प्रचालन में रीयि और पाररलशििा की स ु संगििा स ु यनश्चचि करने के ललए सभी क्षेत्रीय/शाखा कायािलयों और लाइसेंसी द्वारा संदभि सामग्री के रूप में उपयोग ककया जाएगा। बीआईएस प्रमाणीकरण लाइसेंस/ प्रमाणपत्र प्राप्ि करने के इच्छ ु क भावी आवेदकों द्वारा भी इस दस्िावेज़ का उपयोग ककया जा सकिा है । PRODUCT MANUAL FOR PNEUMATIC TYRES FOR COMMERCIAL VEHICLES - DIAGONAL AND RADIAL PLY ACCORDING to IS 15636:2012 Document No.- PM/IS 15636/2/August 2021 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. PM/ IS 15636/ 2/ August 2021 PRODUCT MANUAL FOR PNEUMATIC TYRES FOR COMMERCIAL VEHICLES - DIAGONAL AND RADIAL PLY - ACCORDING TO IS 15636:2012 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 15636: 2012 Title : PNEUMATIC TYRES FOR COMMERCIAL VEHICLES – DIAGONAL AND RADIAL PLY No. of Amendments : 3 2. Sampling Guidelines: a) Raw material : --- b) Grouping guidelines : Each type of Tyre as per the approved Family of Tyres according to Clause 6.2.5.2 of IS 15636:2012 shall be tested for GoL/CSoL. If a Tubeless Tyre version is approved, Tube version for the same Tyre Designation may also be covered in the Scope of Licence based on the Manufacturing/Testing capabilities of the Manufacturer. c) Sample Size : 2 Tyres (as per Table 32 of IS 15636:2012). Also see Item

5 below. 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 : Marking, Tyre Strength Test (Plunger Test), Load/Speed Performance Test , Tread Wear Indicators Note: During surveillance inspection, all possible tests shall be carried out in the factory. A Factory sample shall also be drawn for independent testing during surveillance inspection. No Market samples shall be drawn. 6. Scope of the Licence : Please refer ANNEX – C BUREAU OF INDIAN STANDARDS Manak Bhawan, 9, Bahadur Shah Zafar Marg, New Delhi – 110002 1 PM/ IS 15636/ 2/ August 2021

List of Test Equipment Major test equipment required to test as per the Indian Standard Sl. No. Test Equipment Tests used in with Clause Reference 1 i. Pressure Gauge ii. Steel Tape iii. Pie Tape iv. Vernier Caliper v. Thermo Hygrometer vi. Measuring Rim Dimensions (Cl. 4.1) 2 i. Tyre Drum Testing Machine ii. Load iii. Test Drum iv. Pressure Gauge v. Test Rim Load/Speed Performance Test (Cl. 4.3) 3 i. Tyre Drum Testing Machine ii. Load iii. Test Drum iv. Pressure Gauge Endurance Test (Cl. 4.2) 4 i. Pressure Gauge ii. Depth Gauge Tread Wear Indicators (Cl. 4.4 ) 5 i. Tyre Strength Test Machine ii. Pressure Gauge iii. Cylindrical Steel Plunger iv. Linear Scale v. Test Rim Tyre Strength Test (Plunger Test) (Cl. 4.5) The above list is indicative only and may not be treated as exhaustive. 2 PM/ IS 15636/ 2/ August 2021

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. 2. TEST RECORDS – The manufacturer shall maintain test records for the tests carried out to establish conformity. 3. LABELLING AND MARKING – As per the requirement of IS 15636:2012. 4. 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 paragraph 2 above. 4.1 RAW MATERIAL CONTROL – All the incoming raw materials shall be tested and proper records maintained before releasing material for production. Alternatively, the raw material shall be accompanied by the test certificate of the supplier. Recommended list of various raw materials is given in Annex I.

4.2 PROCESS CONTROL – The frequency of inspection and parameters shall be according to the approved plant quality audit programme. The recommendatory areas of manufacturing given in Annex II may be covered in this programme. During each stage, the given parameters and equipment set up shall be controlled, audited and recorded. 5. 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. 3 PM/ IS 15636/ 2/ August 2021 TABLE 1 (1) (2) (3) Test Details Test equipment Levels of Control requirement R: required (or)S: Sub- contracting permitted Cl. Requirement Clause Test Methods Reference No. of Sample Frequency Remarks 4.1 Tyre Dimensions

Table 6 to 25 IS 15636 R One Once in three months for each variety In case of failure in any requirement, marking shall be suspended, reasons for failure investigated and corrective actions taken. Double the number of samples indicated shall then be tested and marking and original frequency may be restored only if both the samples pass. No. of samples may be drawn and tested as per clause 4.2, 4.3 and 4.5 in such a way that all varieties of tyres manufactured are covered once in two years. 4.2 Endurance Test Annex B Table 26 IS 15636 S One or more Once in three months 4.3 Load/Speed Performance Test One or more Once in three months 4.4 Tread Wear Indicators 4.4 IS 15636 R Three Once in three months for each variety 4.5 Tyre Strength (Plunger Test)

PROCESS CONTROL (Clause 4.2 of SIT) Area Parameters to be controlled Compounding Ingredient weights Mixing Time/Temperature or Energy, Sequence Dip Preparation Ingredient weights, time, temperature sequence Dipping Temperature, stretch/tension, speed/time, width Extrusion Stock identification, temperature, width, dimensions Calendering Stock/fabric identification, temperature, width, gauge Bead making Stock/wire identification, diameter, No. of strands, No. of turns Stock preparation Stock identification, width, angle Tyre building Component identification, sequence Tyre curing Time, temperature/pressure, sequence Final Inspection Every tyre shall be visually examined for defects and appearance In process Testing COMPOUND Final Batch Specific Gravity Rapid Modulus Rheometer Test Physical Properties DIP SOLUTION Final Total solids pH value DIPPED FABRIC Tyre Cord warp sheet Breaking strength Percentage Elongation Adhesion & Dip pick up Sq. woven nylon fabric E.P.I. Strength Adhesion and dip pick up CALENDERED FABRIC Tyre cord warp sheet E.P.I. Gauge Sq. metre weight Sq. woven fabric Gauge Sq. metre weight 6 PM/ IS 15636/ 2/ August 2021

Scope of the Licence Licence is granted to use Standard Mark as per IS 15636:2012 with the following scope: Name of the Product Pneumatic Tyres for Commercial Vehicles Application Category Construction Type Structure Tyre Size Designation Speed Category Use of Tube Load Index (or Load Capacity) Ply Rating Carcass Material 7