Page: 01 of 02

Calibration Certificate / ULR No.: CC202221000001412F Calibration Request No.: DCL/2021/N/5167

Certificate issued on: 05-02-2021 Date of Receipt: 02-02-2021
Suggested date for the next calibration: 03-02-2022 Date of Calibration: 03-02-2021

CALIBRATED FOR: M/S PAPER TESTING LAB

IIT Roorkee, Saharanpur Campus

ITEM’S DESCRIPTION: Name : Digital Vernier Caliper

Make / Model No. : ---------------
Serial No. : ---------------
Identification No. : IITR/SRE/PTL/16
Range : 0 to 150 mm
Least Count : 0.01 mm
Location : Paper Testing Laboratory
Physical Condition : OK Zero Error: 00

Temperature : 20.0 °C ± 2.0 °C

Environmental Condition
Relative Humidity : 50 % ± 20 %

STANDARD REFERENCE DETAILS (Traceable to National Standard)

Uncertainty
Make / Calibration
Name of Standard I.D. No. Certificate No. Traceable (at 95% C.L.
Model No. Due Date
approx.)
Tanson As per
Slip Gauges Set Aditya / DCL/STD/
TI/G/SGS/017/20 Instrument, 07-07-2022 Certificate
“0” Grade M88 SG-01
Faridabad (k=2)
Tanson
DCL/STD/ ± 1.47 µm
Caliper Checker Aditya TI/G/CC/002/20 Instrument, 21-07-2022
CC-01 (k=2)
Faridabad
Equipments Used : Slip Gauge Accessories
Principle / Methodology of Calibration: As per Calibration Procedure No. DCL/CP/M-02
Reference Standard : IS-3651

CALIBRATION RESULTS (IN-LAB)

Reference Standard Average Measured U.U.C. Value (mm) Expanded

Value (mm) Uncertainty^
External Measurement Internal Measurement Depth Measurement
2.00 2.00 ------ ------ ± 13.1 µm
5.00 5.00 ------ ------ ± 13.1 µm
10.00 10.00 10.00 10.00 ± 13.1 µm
20.00 20.00 20.00 20.00 ± 13.1 µm
50.00 50.00 49.99 50.00 ± 13.1 µm
100.00 100.00 99.99 100.00 ± 13.1 µm
150.00 149.99 149.98 150.00 ± 13.1 µm

Calibrated by: Nayan Kumar Approved by: B.G. Sharma

(Sr. Calibration Engineer) (Technical Head)
 Page: 02 of 02

Calibration Certificate / ULR No.: CC202221000001412F Calibration Request No.: DCL/2021/N/5167

Certificate issued on: 05-02-2021 Date of Receipt: 02-02-2021
Suggested date for the next calibration: 03-02-2022 Date of Calibration: 03-02-2021

Remarks:
1- Expanded Uncertainty^ of measurement evaluated at a confidence Level of approximately 95% with Coverage factor k=2 for a
normal probability distribution.
2- U.U.C. defined above as Unit Under Calibration.
*End of Report*

Calibrated by: Nayan Kumar Approved by: B.G. Sharma

(Sr. Calibration Engineer) (Technical Head)
 Page: 01 of 02

Calibration Certificate / ULR No.: CC202221000001413F Calibration Request No.: DCL/2021/N/5167

Certificate issued on: 05-02-2021 Date of Receipt: 02-02-2021
Suggested date for the next calibration: 03-02-2022 Date of Calibration: 03-02-2021

CALIBRATED FOR: M/S PAPER TESTING LAB

IIT Roorkee, Saharanpur Campus

ITEM’S DESCRIPTION: Name : Vernier Caliper

Make / Model No. : PRECISE
Serial No. : ---------------
Identification No. : IITR/SRE/PTL/15
Range : 0 to 300 mm
Least Count : 0.02 mm
Location : Paper Testing Laboratory
Physical Condition : OK Zero Error: 00

Temperature : 20.0 °C ± 2.0 °C

Environmental Condition
Relative Humidity : 50 % ± 20 %

STANDARD REFERENCE DETAILS (Traceable to National Standard)

Uncertainty
Make / Calibration
Name of Standard I.D. No. Certificate No. Traceable (at 95% C.L.
Model No. Due Date
approx.)
Tanson As per
Slip Gauges Set Aditya / DCL/STD/
TI/G/SGS/017/20 Instrument, 07-07-2022 Certificate
“0” Grade M88 SG-01
Faridabad (k=2)
Tanson
DCL/STD/ ± 1.47 µm
Caliper Checker Aditya TI/G/CC/002/20 Instrument, 21-07-2022
CC-01 (k=2)
Faridabad
Equipments Used : Slip Gauge Accessories
Principle / Methodology of Calibration: As per Calibration Procedure No. DCL/CP/M-02
Reference Standard : IS-3651

CALIBRATION RESULTS (IN-LAB)

Reference Standard Average Measured U.U.C. Value (mm) Expanded

Value (mm) Uncertainty^
External Measurement Internal Measurement Depth Measurement
2.00 2.00 ------ ------ ± 15 µm
5.00 5.00 ------ ------ ± 15 µm
10.00 10.00 10.00 10.00 ± 15 µm
20.00 20.00 20.00 20.00 ± 15 µm
50.00 50.00 50.00 50.00 ± 15 µm
100.00 100.00 100.00 100.00 ± 15 µm
200.00 200.00 200.00 200.00 ± 15 µm
300.00 300.00 300.00 300.00 ± 15 µm

Calibrated by: Nayan Kumar Approved by: B.G. Sharma

(Sr. Calibration Engineer) (Technical Head)
 Page: 02 of 02

Calibration Certificate / ULR No.: CC202221000001413F Calibration Request No.: DCL/2021/N/5167

Certificate issued on: 05-02-2021 Date of Receipt: 02-02-2021
Suggested date for the next calibration: 03-02-2022 Date of Calibration: 03-02-2021

Remarks:
1- Expanded Uncertainty^ of measurement evaluated at a confidence Level of approximately 95% with Coverage factor k=2 for a
normal probability distribution.
2- U.U.C. defined above as Unit Under Calibration.
*End of Report*

Calibrated by: Nayan Kumar Approved by: B.G. Sharma

(Sr. Calibration Engineer) (Technical Head)
 Page: 01 of 01

Calibration Certificate / ULR No.: CC202221000001414F Calibration Request No.: DCL/2021/N/5167

Certificate issued on: 05-02-2021 Date of Receipt: 02-02-2021
Suggested date for the next calibration: 03-02-2022 Date of Calibration: 03-02-2021

CALIBRATED FOR: M/S PAPER TESTING LAB

IIT Roorkee, Saharanpur Campus

ITEM’S DESCRIPTION: Name : Steel Scale

Make / Model No. : KRISTEEL
Serial No. : ---------------
Identification No. : IITR/SRE/PTL/18
Range : 0 to 600 mm
Least Count : 0.5 mm (≤ 100 mm) & 1 mm (> 100 mm)
Location : Paper Testing Laboratory
Physical Condition : OK Zero Error: ------

Temperature : 20.0 °C ± 2.0 °C

Environmental Condition
Relative Humidity : 50 % ± 20 %

STANDARD REFERENCE DETAILS (Traceable to National Standard)

Uncertainty
Make / Calibration
Name of Standard I.D. No. Certificate No. Traceable (At 95% C.L.
Model No. Due Date
approx.)
Khushi
As per cal.
Tape & Scale DCL/STD/ CC237920 Calibration
Detron 27-11-2021 certificate
Calibration System STCS-01 000004602F Laboratory,
(k=2)
Faridabad
Equipments Used : Nil
Principle / Methodology of Calibration: As per Calibration Procedure No.: DCL/CP/M-18
Reference Standard : IS-1481

CALIBRATION RESULTS (IN-LAB)

Average U.U.C. Value Average Reference Standard Value Expanded Uncertainty^
(mm) (mm) (µm)
10 10.005 ± 290.9
50 50.016 ± 290.9
100 100.026 ± 290.9
200 200.049 ± 291.2
300 300.073 ± 291.2
450 450.108 ± 291.2
600 600.143 ± 291.2
Remarks:
1- Expanded Uncertainty^ of measurement evaluated at a confidence Level of approximately 95% with Coverage factor k=2 for a
normal probability distribution.
2- U.U.C. defined above as Unit Under Calibration.
*End of Report*

Calibrated by: Nayan Kumar Approved by: B.G. Sharma

(Sr. Calibration Engineer) (Technical Head)
 Page: 01 of 02

Calibration Certificate / ULR No.: CC202221000001415F Calibration Request No.: DCL/2021/N/5167

Certificate issued on: 05-02-2021 Date of Receipt: 02-02-2021
Suggested date for the next calibration: 03-02-2022 Date of Calibration: 03-02-2021

CALIBRATED FOR: M/S PAPER TESTING LAB

IIT Roorkee, Saharanpur Campus

ITEM’S DESCRIPTION: Name : Digimatic Micrometer

Make / Model No. : PRECISE
Serial No. : ---------------
Identification No. : IITR/SRE/PTL/24
Range : 0 to 25 mm
Least Count : 0.001 mm
Location : Paper Testing Laboratory
Physical Condition : OK Zero Error: 00

Temperature : 20.0 °C ± 2.0 °C

Environmental Condition
Relative Humidity : 50 % ± 20 %

STANDARD REFERENCE DETAILS (Traceable to National Standard)

Uncertainty
Make / Calibration
Name of Standard I.D. No. Certificate No. Traceable (at 95% C.L.
Model No. Due Date
approx.)
Tanson As per
Slip Gauges Set Aditya / DCL/STD/
TI/G/SGS/017/20 Instrument, 07-07-2022 Certificate
“0” Grade M88 SG-01
Faridabad (k=2)
Equipments Used : Nil
Principle / Methodology of Calibration: As per Calibration Procedure No. DCL/CP/M-03
Reference Standard : IS-2967

CALIBRATION RESULTS (IN-LAB)

Reference Standard Value Average Measured U.U.C. Value Expanded Uncertainty^
(mm) (mm) (µm)
2.500 2.500 ± 1.8
5.100 5.100 ± 1.8
7.700 7.700 ± 1.8
10.300 10.300 ± 1.8
12.900 12.900 ± 1.8
15.000 15.001 ± 1.8
17.600 17.601 ± 1.8
20.200 20.201 ± 1.8
22.800 22.802 ± 1.8
25.000 25.002 ± 1.8

Calibrated by: Nayan Kumar Approved by: B.G. Sharma

(Sr. Calibration Engineer) (Technical Head)
 Page: 02 of 02

Calibration Certificate / ULR No.: CC202221000001415F Calibration Request No.: DCL/2021/N/5167

Certificate issued on: 05-02-2021 Date of Receipt: 02-02-2021
Suggested date for the next calibration: 03-02-2022 Date of Calibration: 03-02-2021

Remarks:
1- Expanded Uncertainty^ of measurement evaluated at a confidence Level of approximately 95% with Coverage factor k=2 for a
normal probability distribution.
2- U.U.C. defined above as Unit Under Calibration.
*End of Report*

Calibrated by: Nayan Kumar Approved by: B.G. Sharma

(Sr. Calibration Engineer) (Technical Head)
 Page: 01 of 02

Calibration Certificate / ULR No.: CC202221000001416F Calibration Request No.: DCL/2021/N/5167

Certificate issued on: 05-02-2021 Date of Receipt: 02-02-2021
Suggested date for the next calibration: 03-02-2022 Date of Calibration: 03-02-2021

CALIBRATED FOR: M/S PAPER TESTING LAB

IIT Roorkee, Saharanpur Campus

ITEM’S DESCRIPTION: Name : Vernier Height gauge

Make / Model No. : PRECISE
Serial No. : ---------------
Identification No. : IITR/SRE/PTL/21
Range : 0 to 300 mm
Least Count : 0.02 mm
Location : Paper Testing Laboratory
Physical Condition : OK Zero Error: ----

Temperature : 20.0 °C ± 2.0 °C

Environmental Condition
Relative Humidity : 50 % ± 20 %

STANDARD REFERENCE DETAILS (Traceable to National Standard)

Uncertainty
Make / Calibration
Name of Standard I.D. No. Certificate No. Traceable (at 95% C.L.
Model No. Due Date
approx.)
Tanson As per
Slip Gauges Set Aditya / DCL/STD/
TI/G/SGS/017/20 Instrument, 07-07-2022 Certificate
“0” Grade M88 SG-01
Faridabad (k=2)
Tanson
DCL/STD/ ± 1.47 µm
Caliper Checker Aditya TI/G/CC/002/20 Instrument, 21-07-2022
CC-01 (k=2)
Faridabad
Equipments Used : Dial Test Indicator

Principle / Methodology of Calibration: As per Calibration Procedure No. DCL/CP/M-11

Reference Standard : IS-2921

CALIBRATION RESULTS (IN-LAB)

Reference Standard Value Average Measured U.U.C. Value
Expanded Uncertainty^
(mm) (mm)
5.000 5.00 ± 15.0 µm
10.000 10.00 ± 15.0 µm
20.000 20.00 ± 15.0 µm
50.000 50.00 ± 15.0 µm
100.000 100.00 ± 15.0 µm
200.000 200.00 ± 15.0 µm
300.000 299.98 ± 15.0 µm

Calibrated by: Nayan Kumar Approved by: B.G. Sharma

(Sr. Calibration Engineer) (Technical Head)
 Page: 02 of 02

Calibration Certificate / ULR No.: CC202221000001416F Calibration Request No.: DCL/2021/N/5167

Certificate issued on: 05-02-2021 Date of Receipt: 02-02-2021
Suggested date for the next calibration: 03-02-2022 Date of Calibration: 03-02-2021

Remarks:
1- Expanded Uncertainty^ of measurement evaluated at a confidence Level of approximately 95% with Coverage factor k=2 for a
normal probability distribution.
2- U.U.C. defined above as Unit Under Calibration.
*End of Report*

Calibrated by: Nayan Kumar Approved by: B.G. Sharma

(Sr. Calibration Engineer) (Technical Head)
 Page: 01 of 02

Calibration Certificate / ULR No.: CC202221000001417F Calibration Request No.: DCL/2021/N/5167

Certificate issued on: 05-02-2021 Date of Receipt: 02-02-2021
Suggested date for the next calibration: 03-02-2022 Date of Calibration: 03-02-2021

CALIBRATED FOR: M/S PAPER TESTING LAB

IIT Roorkee, Saharanpur Campus

ITEM’S DESCRIPTION: Name : Digital Thermo-Hygrometer

Make / Model No. : MEXTECH / TM-2
Serial No. : ---------------
Identification No. : IITR/SRE/PTL/14
Range : 0 °C to 50 °C & 20 %RH to 90 %RH
Least Count : 0.1 °C & 1 %RH
Location : Paper Testing Laboratory
Physical Condition : OK Zero Error: ------

Temperature : 25.0 °C ± 2.5 °C

Environmental Condition
Relative Humidity : 50 % ± 20 %

STANDARD REFERENCE DETAILS (Traceable to National Standard)

Uncertainty
Make / Calibration
Name of Standard I.D. No. Certificate No. Traceable (At 95% C.L.
Model No. Due Date
approx.)
± 0.32 °C,
Dig. Thermometer
Yudian / DCL/STD/ Belz, ± 0.20 °C &
with RTD (Pt-100) 30030397 14-10-2021
AI5600 TM-03 Faridabad ± 0.80 °C
4 wire sensor
(k=2)
Dig. Humidity
Polltech / DCL/STD/ Belz, ± 0.8 %RH
Indicator with RH 30030394 14-10-2021
PSI-RHT1 THM-04 Faridabad (k=2)
Sensor
Equipments Used : Humidity Chamber
Principle / Methodology of Calibration: As per Calibration Procedure No.: DCL/CP/TH-07

CALIBRATION RESULTS (IN-LAB)

Average U.U.C. Value Average Standard Reference Value Expanded Uncertainty^
(°C) (°C ) (°C)
10.0 10.032 ± 0.30
20.0 20.045 ± 0.30
30.0 30.067 ± 0.30
40.0 40.096 ± 0.30
50.0 50.115 ± 0.30

Calibrated by: Nayan Kumar Approved by: B.G. Sharma

(Sr. Calibration Engineer) (Technical Head)
 Page: 02 of 02

Calibration Certificate / ULR No.: CC202221000001417F Calibration Request No.: DCL/2021/N/5167

Certificate issued on: 05-02-2021 Date of Receipt: 02-02-2021
Suggested date for the next calibration: 03-02-2022 Date of Calibration: 03-02-2021

CALIBRATION RESULTS (IN-LAB)

Average U.U.C. Value Average Standard Reference Value Expanded Uncertainty^
(%RH) (%RH) (%RH)
30 30.21 ± 1.64
50 50.35 ± 1.64
60 60.57 ± 1.64
70 70.85 ± 1.64
90 90.89 ± 1.64

Remarks:
1- Expanded Uncertainty^ of measurement evaluated at a confidence Level of approximately 95% with Coverage factor k=2 for a
normal probability distribution.
2- U.U.C. defined above as Unit Under Calibration.
3- The temperature measurements have been observed at 50 %RH (approx.) and humidity measurements have been observed
at 25 °C (approx.).
*End of Report*

Calibrated by: Nayan Kumar Approved by: B.G. Sharma

(Sr. Calibration Engineer) (Technical Head)