Gaba Sigma Instrumentations & Calibrations Booth No. 13, Sector 110, TDI City, Mohali-140307 (Punjab) Mob.: +91-98766-96177, 98766-13855 E-mail : sigmacalibration@gmail.com Web.: wwwsicindia.in €€2340 Page 1/5 ULR No. : €C23402000000099F Certificate No. -SIC/IT/2019-20/6-028 CALIBRATION CERTIFICATE IMPACT TESTER (CHARPY) AS PER ISO 148:2016:PART-2 {Direct Method) Req, Date of Calibration 04.02.2020 Date of Calibration 14.02.2020 Certificate Issue Date 20.02.2020 ‘Next Calibration Reco Date 14.02.2023 aebiagige 88 Customer's Namer & Address : IMachine Sr. No. 01/2014-1237 Make FE M/s. Kova fasteners Pvt. Ltd, Room temp. (t 2°C) 20 8-30-1858/2B, Sherpur Kalan, Location us. Phase -V, FocalPoint,Ludhiana, iause 6. Dir [clause 6.1 General 2) Foundation/Installation Jd) Anvil and Supports lb) Machine framework Je) indicating equipment Jc) Pendulum including the Hammer and Striker 6.2 [Foundation/installation Required [observed _ [Remarks 6.2.1 _ | Weight of padestal(Certified by manufacturer) Certified By Mig |_287.5 kg ok 6.2.2 [Weight of foundation(Certified during installation) 340 x weight of pendulum [Certified by Customer (6.2.3. [Ensuring the bolts are tightened properly and torque value recorded, Incase of any method of fixing Bolts tightening torque | >68 Nm ox is used to make a note accordingly. feaab [Ensuring the machine is Tree fom external vibration for confirming a small container of water is placed on a ‘To be checked location or on a reference point provided by the” by keeping a glass ok ok manufacturer and if absence of ripples noticed then the of water requirement has been met. [6.3 | Machine Framework . 6.3.1 _ [inspection of the machine framework shall be determined by the following items: a) |Free postion of pendulam bb) |ocation of pendulum in elation to the supports )_ [Transverse and radial play of pendulum bearings 8) _|clearance between the hammer and the framework [6.3.2 _| Axis of rotation of the pendulum parallel tothe reference plane within 2/1000 0.3/1000_[_cer.ay ive [6.33 |The machine shall be installed so that the reference 2/1000 Ge OK plane is horizontal to within 5 fentereoreten nese ares texais | wninzemn | ozomm | [635 | The plane of swing of pendulum shall be 90°+0.1'to avis 30201 Geaeawras | OK Deals in : Material Testing Machines (UTM, Hardness, Impact and Calibrations)Page 2/5 ULR No. : 6234020000099 Certificate No. - SI¢/!T/2019-20/C-028 [clause _[Discription Required [Observed | Remarks [63.6 |The striker shall make contact over the full thickness of test piece Full contact with Full contace: ‘OK (i.e having dimension of Ssmm x10 mmx 10 mm) Test piece [6.3.7 |The location of pendulum Is such that the center of striker and the —— ae OK center gap between the anvils are coincident to within 0.5mm, [6.3.8 [Axial play in the pendulum bearings shall not exceed 0.25 mm, measured at the centre-of-rotation under a transverse force of 0.25mm 0.10 mm ok lapproximately 4% of effective weight of the pendulum [6.3.9 |Radial play of the shaft in the pendulum bearings shall not exceed 0.008 mm,When a force of 150 Nt 10N is applied at a distance L 0.08mm 0.02 mm oK lperpendicular to the plane of swing of pendulum. [6.3.10 |it is recommended that the mass of the base of the machine Physical nn ‘OK framework be at least 12 times that of the pendulum, examination. 6.4 |Pendulum: [6.4.1 |The verification of the pendulum (including striker) shall consist of determining the following quantities, a. Potential Energy, Kp; b. Error in the indicated absorbed energy, Ks; Jc. Velocity of pendulum at instant of impact; Jd. Energy absorbed by friction; Je. Position of centre of percussion(i.e distance from the center of precussion to axis of rotation); It. Radius of the striking edge of the striker; g. Angle between the line of contact of the striker and the horizontal axis of the test piece. [64.2 [potential Energy: (1-c0s a) Where M= Force in N (F) x Length in mtr.(I]& a = Total Angle of fallin” Parameter 1 2 3 ‘Average Length in mtr) osiasa [ osi4sa | osiasa | osiasa Inti Angle in” erie | ero | 6ri0" 6710" Final Angelin ~ 738 [7438 | 7938" 74°38 [Total angle offallin ~ (a) qaras" | saree 14148! Force in (ND 206.2 206.2 206.2 Potential Eneray: 300.06 |, 300.06 300.06 Nominal Energy Potential Energy % Error Remarks Energy Kn{Joules) Energy KplJoules) : (Kn-kp)/Knxt00 300 300.06 -0.020 oO Potential Energy Kp should be within #1% of Nominal Energy Kn Note: Angle measurement is done to the accurecy of # 0.2" Length and Force are measured to the accuracy of 20.2%Page 3/5 ULR No. : €€23402000000099F Centficate No. :-Si¢/IT/2019-20/¢-028 (6.43 [Energy absorbed/Eneray indicated & Error Force M=tx 168.02 ‘Angle of Fall a=141" 68 sr. No, indicated absorbed energy = Fx x (1 cos Bcale) = M [eos B-cos ) indicated ‘Angle of rise ‘Absorbed Energy (0) Tolerance mit JRemarks nergy () Keale= M (cos B-cos a) 0 J deg min i 1 J 1 o or 10 1.13 113) ()45t015 2 30 53° 03 30.76 0.76 28,50 to 31.50 3 0 ar o7 60.67 0.67, 58.50 t0 61.50 4 90 20" 90.39 0.39 88.50 10 91.50 5 150) 237 154.06 1.06 148.50 to 151.50 6 240 co 239.47 0.53) 237,00 to 243.00 7 300 on 300.06 0.06 237.00 to 303.00 6.44 Velocity V: ‘sqrt2x9.81x0.81484(1- cos141" 48')= 5.34misec JO-45 |The energy absorbed by friction includes, But is not limited to Air resistance, Bearing friction and the friction of indicating pointer. These losses shall be estimated, [64.5.1 Losses due to pointer friction(i): p = KI-K2 _ { When scale graduated in energy units) [Energy absorbed when the pendulum is released without specimen For the first time = Ki 8 for second time = K2 (without resetting the pointer) Energy 30) 20) 30) a0) Mean =KI-K2U) Ki ° 0 0 0 0 Oa K2 “0.4 “0.4 04 04 04 [6.4.5.2 [Determination of loss caused by bearing friction and air resistance for one half swings p' = 4/10(K3-K2) JAfter K2 is determined, pendulum is placed in its location. Without resetting the pointer, release pendulum Permit it to swing for 10 half swings, when it starts for 11th swing, move the pointer to about $% ofthe scale range capacity K3 is observed as: 8} "= 1/10 (K3 -K2) =1/10(8.0+0.4)= 0.84) Total friction loss :- (P+P"), so measured,shall not exceed 0.5% of the nominal energy, Kn. Pointer friction Bearirg friction & [Total loss pep’) [%onNominal€. | Remarks loss p 0) Air resistance p'()) (Total 1oss/KN) %) 04 0.88 124 041% OK 16.4.6 —_|center of percussion :- . Pendulum is allowed to complete 100 swings with an angle not exceeding S‘and noted Time 1 (Sec.) asec) __[Ta(See) ‘Mean t (Sec.) Sec 381 181 181 381 [Center of percussion @t :-0.2485x/(txt) imit= 0.995@ + 0.005¢ [Remarks [8i8.81mm to 810.66mm Satisfactory [Note = Tmax- Tmin should be within 0.2 secPage 4/5 ULR No. : €C23402000000099F Certificate No. :- SIC/IT/2019-20/C-028 Clause [Description Required observed Remarks [6-4-7 |pimensions of Striker: Striker used = 2 mm/8 mm striker [Parameters 2mm striker [e mm striker 2mm. OK. [Radius required 2t025mm N/A ‘Checked with RG OK, Width required 10 to 18 mm N/A 17.82 mm OK [shoulder radius NA N/A 5 [Width of edge N/A NA = [Angle of Striker 3021 N/A ‘checked with AG OK, 16.4.8 [The angle between the line of contact of the striker and the 90° 2° Gnaeus. OK horizontal axis of the test piece shal be [6.4.9 |The mechanism for releasing the pendulum from its initial position Physical shall operate freely and permit release of the pendulum without initial Inspection OK oK limpulse, retardation or side vibration. Brake mechanism: Manual/ Electic ‘Manual ‘Manual OK [6.4.12 [Machines with automatic lifting devices shall be constructed so that the direct verification can be performed. Arrangement = Y/N 65 [Anvil and Supports 16.5.1 Ja) Configuration of the Supports; lb) Configuration of the anvils; Jc) Distance between the Anvils; ld) Taper & Radius of the Anvils; Je) Clearance for the broken test place to exit the machine. [6.5.2 [Anvil supports where the specimen is placed shall be parallel on fae a to the axis of rotation of the pendulam checked within 3/1000 Distance between the support plane is limited within 0.1 mm within 0.1mm, 0.015 OK. [6.5.3 |The anvils and supports are verified as below: [The supports are perpendicular to the anvils 90° 0.1" Checked with AG OK [The planes facing the test piece shall be parallel and within 0.1mm ‘oimm, 0.015) x Distance between anvils. 40 mm + 0.2mm, 40.00 Radius of A ‘mm+0.5mm_ Checked with 8. OK [Angle of taper of Anvil wer Checked wih AG. OK 16.5.4 [Shrouds of the following specifications shall be provided for Requirement Shroud Parameters [Thickness Approx. 1.5mm OK [Minimum Hardness 45 HRC OK. [Radius at the underside corners ‘At least 1.5mm OK. [Clearnce between shrouds and hammer overhang* Within 1.5 mm = OK. *Not applicable for C type hammerPage 5/5 ULR No. : CC23402000000099F Certificate No. :- SIC/IT/2019-20/C-028 [6.6 indicating Equipment:- Unit of measurement : Angle in '/ Energy in Joules ee al oe |(Recommended ratios are 1:4, 1:5 or 1:10). IC) Scale Interval - 3.0) 2 OK ithe range fluctutaion) /* The machine has been verified as per ISO:148 : 2016 (Part-2) clause 6 for Direct Verification and the errors/ Q % Www gy OD Cm Name of Instruments _| Calibration Certificate No. Valid upto Identy/ Sr.No. Uc [Traceability Weighing Scale ITCCS/2019/27132 }26.04.2020 WB-02 0.001 kg [Indiana Lab. Digital Stop Watch ITCCS/2019/28650 [30.05.2020 ‘SW-369 £0.22% _|Indiana Lab. Tape ITCCS/2019/27138 [27.04.2020 SIC/IT/MT-O1 ft 200 (um/M} indiana Lab.Sigma Instrumentations & Calibrations Booth No. 13, Sector 110, TDI City, Mohali-140307 (Punjab) Mob.: +91-98766-96177, 98766-13855 E-mail : sigmacalibration@gmail.com Web.: www-sicindia.in Shoot No. 1/2 ‘SICJUTMI2019-20/C-229 7 CC-2340 ULR No.: CC234020000000103F Certificate No.: CALIBRATION CERTIFICATE UNIVERSAL TESTING MACHINE DATE OF REQUEST 04.02.2020 DATE OF CALIBRATION : 14.02.2020 CERT. ISSUE DATE 20.02.2020 NEXT CAL. SUGG. ON 14.02.2021 MACHINE MODEL UTE -40 CUSTOMER'S NAME & ADDRESS SR. NO. 1012013 - 5207 MAKE FIE Mis. Kova Fasteners Pvt. Ltd. ROOM TEMP.(: 2°C) 20 8-30 - 1858/2 B, Sherpur Kalan, LOCATION LAB. Phase-IV, Focal Point, Ludhiana (Pb.) Rango (KN) : 0-400 Calibration in:_Compression [Detal of toree inst Se No. 34917 Inst. Caran Cer. Ref Trak Case IMemurnginstument _[Capacty 100KN __dueon 17.08.2020 ___FRUOS/IENO7E4 __10Nto 100N Detal of tree ns. Sr No 43811 Inet. Caran ‘ent Rt nat. Class =1 IMemuinginsiument _[capacty 10004N due on 17062020 ___FRUOQ/IB/0765 _100Nto 1000 KN Fore) | Saat] Seat Dasenedl Wear] DH | WEror | WRpbIy. | LoadRes. | Cane ww | 24 | temp. [7 2 z iN to] 1051] 1.050 [1003 | t0a7 | 100 [1005 | acns [oa] —0m8 | 000 zo | 204 | 20% | 2063 | 208 | 20% | 2064 | ooo | oss | om | oe ao | 4100 | ates | are | ater | asra | are | ooo | o22 | oor | coe eo | sae | ose | exes | eave | 0205 | e260 | oor | o1 | o16 | o02 1o0_|_10492 | 1oas: | 04s | 1047 | toss | 1047 | oor | o10 | on | ove Force) | Sid. atc] Ste at Observed Mean | Dit. | %eror | RDIY | Load Res. wn | 24 | temp. [7 2 z i soo] tos | 1009 | soar | 10a | toma [toa | ocae [ors | 010 | 008 to | 1087 | 1005 | 1670 | 1008 | tee: | 1582 | coos | oz | 036 | 00 no | 250 | 2520 | asia |- 252 | 2520 | 220 | aos | a3 | o16 | o1 so | asre | sare | 262 | 3266 | 280 | 3362 | oo | oa | oa | on ao | 42s | a210 | aise | sor | ates | 40s | oo | oar | or | on Dos Reacngr on Rerova tFocaGey | 004 | 004 | 002 [ee Uncen chee 0277 Relative zero ero) 001 | 0010 | 0.005 [sximum deviation newng Exp Uncetanty 2) 0706 ee OP Sharma Quality Manager ie Rajat Mankotia Deals in : Material Testing Machines (UTM, Hardness, Impact and Calibrations)Sheet No. 2/2 An No.: €6234020000000103F Certificate No.: SICIUTM/2019-201C-229 Decent oe ceiver doe penervac ach oe wrens ASPERIC-e28Pon ): 2018 IDENTICAL TO 16075004: 2004 {# THE MESUREMENTS ARE TRACEABLE TO NATIONAL STANDARD. UNCERTAINTY OF MEASUREMENT IS AT APPROXIMATELY 95% CONFIDENCE LEVEL, k=2 FOR Veth-30 OR AS PER NABL-141 RESULT RELATE ONLY TO THE ITEM CALIBRATED. {# THis CERTIFICATE MAY NOT BE REPRODUCED EXCEPT IN FULL UNLESS WRITTEN PERMISSION HAS BEEN OBTAINED FROM MS. SIGMA INSTRUMENTATIONS & CALIBRATIONS, MOHALI SIGMA monies & CALIBRATIONS OP Sharma Rajat Mankotia Quality Manager Accredited by NABL ( Ministry of Science & Technology, Govt of India )Sigma Instrumentations & Calibrations Booth No. 13, Sector 110, TDI City, Mohali-140307 (Punjab) Mob.: +91-98766-96177, 98766-13855 E-mail: sigmacalibration@gmail.com ‘Web.: www.sicindia.in Certificate No. :_SIC/RHT/2019-20/C-275 CALIBRATION CERTIFICATE ROCKWELL HARDNESS TESTER DATE OF REQUEST : 04.02.2020 DATE OF CALIBRATION : 14.02.2020 CERT. ISSUE DATE : 20.02.2020 NEXT CAL. SUGG.ON : 14.02.2021 MODEL 1 TRS ‘SERIAL NUMBER : 2003/1278 CUSTOMER'S NAME & ADDRESS: MAKE 2 FINE RESOLUTION OF MACHINE =: 04 Mis. Kova Fasteners Pvt. Ltd. MACHINE LOCATION : LAB, B-30 - 1858/2 B, Sherpur Kalan, METHOD OF VERIFICATON : INDIRECT Phase-IV, Focal Point, MEANS OF VERIFICATION: TESTBLOCK Ludhiana (Pb) ROOM TEMP,+2°C) a) ARONESS [EST STOTEST|UTS [WPL CERTIIGATENO,| OBSERVED READINGS JNO JOW—]RTTY [Uncon™ lscares lavock latocx {AND DUE DATE fen [or HR sano _|vatuew ao Hae i i Na Re [ostsuea]| zee [ou | “EBERE™ [aos [m7 | m0 ava] mz | me] ov | om | om wane [oaescas| avee [om | MMEMCIRC™™ Toe [ «or | aoa] oa] ow | oz] ae | om | os8 wre [arezien] coer [om | MHEBCC™™ Toon | com] cos| os] oo7 | ove] oor | ow | om ao car wre [orecies| azar [ove | Mueeitec™™ [arr | are | 20a | ava] aos | as | on | om | ove aS ae wre [oretees| reas [owe | Mmmmertece® | re | 704 | 700] 706] 750 | 755 | ons | 07 | om Taner wre [oriserie| soar [ows | Mmmmpieecs® | cos [or [cor] ooo] ois | ove | oz | om | om # ALL THE MASTER TEST BLOCKS USED FOR CALIBRATION ARE TRACEABLE TO NPL, NEW DELHI ‘# THIS MACHINE HAS BEEN VERIFIED FOR ITS ACCURACY AND REPEATABILITY AS PER IS-1586 (Part 2)2018 IDENTICAL TO ISO 6508-2:2018, ASTM E18 AND THE RESULTS ARE FOUND WITHIN PERMISSIBLE LIMITS. {THE RELATIVE EXPENDED UNCERTAINTY HAS BEEN COMPUTED AT 85% CONFIDENCE LEVEE, k=2 FOR VetP30 OR AS PER NABL-‘A, ERROR NOT INCLUDED IN REPORTED UNCERTAINTY # RESULT RELATE ONLY TO THE ITEM CALIBRATED. # THIS CERTIFICATE MAY NOT BE REPRODUCED EXCEPT IN FULL UNLESS WRITTEN PERMISSION HAS BEEN OBTAINED FROM MS, SIGMA INSTRUMENTATIONS & CALIBRATIONS, MOHALL SIGMA _—_ & CALIBRATIONS / 2 Oslo BA Authorised Signatory Calibrated By OP Sharma ‘Subhash Mankotia Quality Manager Deals in : Material Testing Machines (UTM, Hardness, Impact and Calibrations)Sigma Instrumentations & Calibrations Booth No. 13, Sector 110, TOI City, Mohali-140307 (Punjab) Mob: +91-98766-96177, 98766-13855 E-mail: sigmacalibration@gmail.com Web.: www-sicindia.in ULR No.: €C234020000000101F Certificate No. : _SIC/RHT/2019-20/C-274 CALIBRATION CERTIFICATE ROCKWELL HARDNESS TESTER DATE OF REQUEST : 04.02.2020 DATE OF CALIBRATION : 14.02.2020 CERT. ISSUE DATE : 20.02.2020 NEXT CAL.SUGG.ON : 14.02.2021 MODEL + RAS ‘SERIAL NUMBER 13/11/094 CUSTOMER'S NAME & ADDRESS: MAKE SARS RESOLUTION OF MACHINE O41 Mis. Kova Fasteners Pvt. Ltd. MACHINE LOCATION : LAB B-30 - 1858/2 B, Sherpur Kalan, METHOD OF VERIFICATON INDIRECT Phase-IV, Focal Point, MEANS OF VERIFICATION ‘TEST BLOCK Ludhiana (Pb.) ROOM TEMP,(+2°C) a) HARDNESS [TEST —_SYOTEST|UTE [NPL CERTIHGATE NO. OBSERVED READINGS [SRO RPTTY Uncart™ Iscatts lavocx —|evocx ‘ND OUE DATE fm [ot HR ISR.NO___|VALUE(H) | (H1,H2,H3,H4,H5) 1 [nan nt wc | oxeaa| asse [ose| MRBTEC™ | was [avr] a7] mel m1 | a0 | om | oe | oni RC [cxisoeas| ance [oar] memcieea® |co7 | woe] ar] «o2| a2 | wo] ow [om] ov Ro [ mrearee| coat | ona | Menwcieses® 1s) | eos | oos| os] eo7 | eos | on | oa | oss wR [rteaiea| aver | ova | ™umerioueae 1277 [ora | za1| zea] 206 | 201] oz | om | om vine [orreroos[ res [ose | uemniesems | 751 | ves | ves | ror | veo | 705 | 048 | 000 | 070 wine [ovearse] ooa7 [oss | Mmmaoisse™™ sos [eos | vor| oar] soe | woe | ove | oxo | one # ALL THE MASTER TEST BLOCKS USED FOR CALIBRATION ARE TRACEABLE TO NPL, NEW DELHI {# THIS MACHINE HAS BEEN VERIFIED FOR ITS ACCURACY AND REPEATABILITY AS PER IS-1586 (Part 2)2018 IDENTICAL TO ISO 6508-2:2015, [ASTM E18 AND THE RESULTS ARE FOUND WITHIN PERMISSIBLE LIMITS. ‘# THE RELATIVE EXPENDED UNCERTAINTY HAS BEEN COMPUTED AT 95% CONFIDENCE LEVEL, k=2 FOR Veff-20 OR AS PER NABL-141, ERROR NOT INCLUDED IN REPORTED UNCERTAINTY WRESULT RELATE ONLY TO THE ITEM CALIBRATED. # THIS CERTIFICATE MAY NOT BE REPRODUCED EXCEPT IN FULL UNLESS WRITTEN PERMISSION HAS BEEN OBTAINED FROM MIS, SIGMA INSTRUMENTATIONS & CALIBRATIONS, MOHALL SIGMA INSTRUMENTATIONS & CALIBRATIONS Gs Signatory Calibrated By OP Sharma Subhash Mankotia Quality Manager Deals in : Material Testing Machines (UTM, Hardness, Impact and Calibrations)Sigma Instrumentations & Calibrations Booth No. 13, Sector 110, TDI City, Mohali-140307 (Punjab) Mob.: +91-98766-96177, 98766-13855 E-mail: sigmacalibration@gmail.com Web.: www.sicindia.in ULR No.: €C234020000000100F Certificate No. :_SICIVHT/2019-20/C-273 CALIBRATION CERTIFICATE VICKER HARDNESS TESTER DATE OF REQUEST : 04.02.2020 DATE OF CALIBRATION : 14.02.2020 CERT. ISSUE DATE : 20.02.2020 NEXT CAL.SUGG.ON : 14.02.2021 MODEL vM- 60 ‘SERIAL NUMBER ’ 01/2014 - 1450 CUSTOMER'S NAME & ADDRES: MAKE PFE RESOLUTION OF MACHINE 0.001 Mis. Kova Fasteners Pvt. Ltd. MACHINE LOCATION LAB B-30 - 1858/2B, Sherpur Kalan, METHOD OF VERIFICATON —: INDIRECT Phase-1V, Focal Point, MEANS OF VERIFICATION: ‘TEST BLOCK Ludhiana (Pb.) ROOM TEMP,(+2°C) nes RARONEGS]TEST ——SYOTEST|UTS NLR FRI SBSERVED RERONGS VERO RPTY Oncart> IscattsJavocx —avocx lceRmicaTe no. few (ier HV sano [varuew D DUE DATE cue He) ao wae | rion | rs2a0 [ons] eROuerteie Trea0] rena] 1850] 1050] sero] se48| 220 | «00 | 181 wavao | rower | cons | on | rovers” Tsao] ese0|ese0| ras0| voa0| eee«| 10 | e00 | aos ALL THE MASTER TEST BLOCKS USED FOR CALIBRATION ARE TRACEABLE TO NPL, NEW DELHI {# THIS MACHINE HAS BEEN VERIFIED FOR ITS ACCURECY AND REPETABILITY AS PER IS-1501(PART-2)-2013 AND THE RESUTS ARE FOUND WITHIN PERMISSIBLE LIMITS # THE RELATIVE EXPENDED UNCERTAINTY HAS BEEN COMPUTED AT 95% CONFIDENCE LEVEL, k=2 FOR Vetf>30 OR AS PER NABL-141 ERROR NOT INCLUDED IN REPORTED UNCERTAINTY #® RESULT RELATE ONLY TO THE ITEM CALIBRATED. {# THIS CERTIFICATE MAY NOT BE REPRODUCED EXCEPT IN FULL UNLESS WRITTEN PERMISSION HAS BEEN OBTAINED FROM IWS, SIGMA INSTRUMENTATIONS & CALIBRATIONS, MOHALI SIGMA INSTRUMENTATIONS & CALIBRATIONS . & Calg ee at Authorised Signatory librated By OP Sharma Rajat Mankotia Quality Manager Deals in : Material Testing Machines (UTM, Hardness, Impact and C;