Hellenic Accreditation System S.A.

Annex F2/15 to the Certificate No. 196-6 SCOPE of ACCREDITATION of the Calibration Laboratory of the ‘CQS S.A. – Calibration and Quality Services’

Measurand / Range of measurement Calibration & Measurement Remarks Calibration item Capability(k=2)* Mass measurements Mass/ Ability of calibration standards Mass standards weights up to: 1 mg 0,015 mg OIML ClassF2 2 mg 0,015 mg ,, F2 ,, 5 mg 0,015 mg ,, F2 ,, 10 mg 0,015 mg ,, F2 ,, 20 mg 0,015 mg ,, F2 ,, 50 mg 0,015 mg ,, F2 ,, 100 mg 0,016 mg ,, F1 ,, 200 mg 0,020 mg ,, F1 ,, 500 mg 0,025 mg ,, F1 ,, 1 g 0,03 mg ,, F1 ,, 2 g 0,04 mg ,, F1 ,, 5 g 0,05 mg ,, F1 ,, 10 g 0,06 mg ,, F1 ,, 20 g 0,08 mg ,, F1 ,, 50 g 0,10 mg ,, F1 ,, 100 g 0,16 mg ,, F1 ,, 200 g 0,3 mg ,, F1 ,, 500 g 1,2 mg ,, F2 ,, 1 kg 1,6 mg ,, F1 ,, 2 kg 100 mg ,, M2 ,, 5 kg 150 mg ,, M2 ,, 10 kg 250 mg ,, M2 ,, 20 kg 300 mg ,, M1 ,,

Page1από7 Annex F2/15 of Certificate ESYD No.196-6 21.12.2017 Measurand / Range of measurement Calibration & Measurement Remarks Calibration item Capability(k=2)* Mass / 1 mg 0,0028 mg Available standards: Non-automatic electronic weighing instruments 2 mg 0,0028 mg OIML Class E2 : 1 mg – 200 g, 5 mg 0,0028 mg max grouped load 420g

10 mg 0,0041 mg OIML Class F1 : 1 mg – 1 kg, 20 mg 0,0049 mg max grouped load 2,1kg

50 mg 0,0059 mg OIML Class F2 : 1 mg – 5 kg 100 mg 0,0069 mg max grouped load 22,2 kg

200 mg 0,0087 mg OIML Class M1 : 5 kg – 20 kg 500 mg 0,011 mg max grouped load 120 kg 1 g 0,014 mg OIML Class M1 : 20 kg standards 2 g 0,018 mg max grouped load 1000 kg 5 g 0,022 mg Calibration is performed on-site, 10 g 0,027 mg according to EURAMET cg-18 v4.0(11/2015) “Guidelines on the 20 g 0,035 mg Calibration of Non-Automatic 50 g 0,042 mg Weighing Instruments”. 100 g 0,07 mg 200 g 0,14 mg 500 g 0,35 mg 1 kg 2 mg [2 - 10] kg 7·10-6 20 kg 400 mg [50 - 1100] kg 6·10-5

-5 AccordingtoEURAMET/cg- (6 ∙10 m + 1,2∙ N) kg 18/v4.0 (11/2015)Guide, by use of [1100 -11000] kg m : mass inkg substitution loads. N : number of substitution loads All calibrations are performed on- site Force measurements Force / [1 – 10]kN 0,12 % Class 0,5 machines Compression testing machines [10 – 100]kN 0,12 % Class 0,5 machines (100 – 2000]kN [0,20 - 0,12] % Class 1 machines According to ELΟΤΕΝ ISO 7500- 1: 2015. Calibration can be performed on- site. Force / According to ISO 7500-1: 2015. Load Rings, Calibration can be performed on- [1 … 100] kN 0,12% CBR, Marshall Loading site. Machines

Page2από7 Annex F2/15 of Certificate ESYD No.196-6 21.12.2017 Measurand / Range of measurement Calibration & Measurement Remarks Calibration item Capability(k=2)* Pressure measurements Pressure / Gas pressure medium , according (0,025 – 4) MPa 0,48kPa Analog and digital gauge to guide DKD-R 6-1 03/2014 pressure measuring Oil pressure medium, according to instruments of direct reading (5 – 50) MPa 0,024 MPa guide DKD-R 6-1 03/2014 Dimensional Measurements Length / According to guide Digital&analog Calipers (0…500) mm / VDI/VDE/DGΟ 2618, part 9.1: d=10 μm 6μm 2006 d=20 μm 12 μm d=50 μm 29 μm d=100 μm 58 μm Length / (0…25) mm / According to guide Digital & analog external d= 1 μm 0,6 μm VDI/VDE/DGΟ 2618, part 10.1: axis Micrometers d= 10 μm 6 μm 2001 (25…100) mm / d= 1 μm 0,7 μm d= 10 μm 6 μm Using the standard gauge blocks (100…500) mm / and horizontal measuring d= 10 μm 7 μm instrument TRIMOS d= 100 μm 58 μm Length/ (0…500) mm/ Based on guide Length measuring d= 1μm 1μm - 3 μm VDI/VDE/DGΟ 2618, part instrument TRIMOS 9.1:2006 &10.1: 2001 Dial gauge and digital 0 mm - 100mm Comparative measurement indicators for linear d= 1 μm 4,2 μm Calibration at laboratory measurement, d= 10 μm 7 μm displacement transducers d= 100 μm 58μm Moulds for concrete Internal dimensions 9 μm According to EN 12390-1:2012 specimens (Cubic, Perpendicularity 7 μm Check pass / fail cylindrical, prismatic) Flatness 7 μm Check pass / fail Cylinder moulds (Proctor) Internal diameter: 9 μm According to EN 13286-2:2010 Height 9 μm Cylinder moulds (CBR) Internal diameter: 9 μm According to EN 13286-47:2012 Height 9 μm Cylinder moulds (Marshall) Internal diameter 9 μm According to EN 12697-30:2012

Measuring Rulers, Tape [3·(n-1)…3·n] m (290√n) μm (d= 1mm) OIML R35-2 §7.5, §7.6 meters, Level rods n=1, 2, 3,… 0,6d (mm) (d≥2mm) Magnetostrictive level (0 … 3,5) m / Based on OIML R35-2 §7.5, §7.6 gauges d= 0,1 mm 0,13-mm d= 1 mm 0,6 mm Frequency Measurements Rotation frequency / [50 … 1000) rpm 0,1 rpm Internal method using standard Reciprocating movement tachometer. [1.000 … 5.000) rpm 0,6 rpm frequency Calibration can also be performed Centrifuges, Extractors, [5.000 … 60.000] rpm 1,8 rpm + 0,01% x f on-site Mixers, Shakers, Vibrating f: rotation frequency in rpm tables

Page3από7 Annex F2/15 of Certificate ESYD No.196-6 21.12.2017 Measurand / Range of measurement Calibration & Measurement Remarks Calibration item Capability(k=2)* Temperature Measurements Temperature / [-30 –0) oC 0,049oC Comparative calibration using Analog, digital liquid bath and temperature 0 oC 0,040oC thermometers of direct resistance probes reading, data loggers (0 – 150] oC 0,046oC Calibration can also be performed (150 – 250] oC 0,050oC on-site. (250 – 400] oC 0,32 oC Comparative calibration using using dry block calibrator and (400 – 500] oC 0,32 oC temperature resistance probe (500 – 600] oC 0,32 oC Temperature / [-30 –0) oC 0,054 oC Comparative calibration using Total immersion liquid-in- liquid bath and temperature 0 oC 0,023 oC glass thermometers resistance probes. (0 – 150] oC 0,029 oC (150 – 250] oC 0,036 oC Temperature / Comparative calibration using o o Analog, Digital [-40 --0) C 0,16 C climatic chamber and temperature thermometers of direct resistance probes Pt100 o o reading, Data loggers (0 - 180] C 0,28 C Temperature / [-30 –0) oC 0,054oC Measurement of probe resistance. Platinum Resistance Using temperature resistance o o Thermometers Sensors 0 C 0,023 C probes Pt100. (iPRT) (0 – 150] oC 0,029oC According to guide DKD-R 5-1 02/2009 (150 – 250] oC 0,036oC Comparative calibration using dry (250 – 400] 0C 0,32oC block calibrator and standard thermometer Temperature / According to guide Climaticandisothermalcham [-20….150) oC 0,19oC DKD-R 5-7 07/2004, and bers,Ovens, Incubators, ELΟΤΕΝ 60068-3-5:2002, using Refrigerators, Freezers, temperature resistance probes Pt Autoclaves, Isothermal 100. Calibration is carried out in liquid baths with volume up the useful volume or in selected o o to 2000 l (150…250] C 0,6 C locations in the chamber. Calibration can be performed on- site. Temperature / According to guide Climaticandisothermalcham [-20….150) oC 0,35 oC DKD-R 5-7 07/2004, and bers,Ovens, Incubators, ELΟΤΕΝ 60068-3-5:2002, using Refrigerators, Freezers, type K thermocouples. Calibration Autoclaves, Isothermal (150…250] oC 0,8 oC is carried out in the useful volume liquid baths with volume up or in selected locations in the to 2000 l chamber. (250…500] oC 1,2oC Calibration can be performed on- site. Using type K thermocouples. Calibration is carried out in the useful volume or in selected (500…600] oC 1,3oC locations in the chamber. Calibration can be performed on- site.

Page4από7 Annex F2/15 of Certificate ESYD No.196-6 21.12.2017 Measurand / Calibration & Measurement Remarks Range of measurement Calibration item Capability (k=2)* Temperature / According to Thermal cyclers (PCR), guideEURAMET/cg-13/v.3.0 o o Apparatus for determining [-40 … +150) C 0,3 C (02/2015),using temperature COD, resistance probes Pt100. Kjeldahldevices, The calibration is carried out in heatingblock the entire block or at selected (+150…+250]oC 0,4oC points. Calibration can also be performed on-site. Temperature / [-40 … +100)oC 0,3oC According to guide Thermal cyclers (PCR), EURAMET/cg-13/v.3.0 Apparatus for determining (+100…+250)oC 0,4oC (02/2015), using type K COD, thermocouples. Kjeldahl devices, (+250…+420]oC 0,9oC The calibration is carried out in heating block the entire block or at selected points. (+420…600]οC 1,2 oC Calibration can also be performed on-site. Temperature / Using temperature resistance Dissolutiontesters and (+30… +50)°C 0,30C probes Pt100 disintegrationtesters Temperature / Using temperature resistance [-80 … +250)°C 0,20C Dryblockcalibrator probes Pt100. according to guide (+250…+ 400] °C 0,320C EURAMET/cg-13/v.3.0 (02/2015) Relative Humidity Relativehumidity chambers According to guide DKD-R 5-7 (30 – 98) % RH with volume up to 2000 l 1,2 %RH (2004) at 23οC

Relative humidity / [30 – 70) % RH Comparative calibration using 1,5 %RH Analog and digital at 23οC climatic chamber and standard instruments measuring and hygrometer. logging relative humidity of (70 – 98] % RH ο 2,0%RH direct reading. at 23 C Spectrophotometric measurements Absorption (Α) / UV /Vis visible spectrum 3,1mAU ** ASTME 275:2008 (Re 2013) spectrophotometers in the (Α ≤ 0,5 AU) Calibration can be performed on- range 235-635nm visible spectrum 3,6mAU ** site. (0,5 < Α ≤ 1,0 AU) UV spectrum 5,7mAU ** (Α ≤ 0,5 AU) UV spectrum 7,7mAU ** (0,5 <Α ≤ 1,5 AU) Volume Measurements Volume / 2μl 7,24 % According to guide PTB- Piston operated measuring Mitteilungen 112 (2002) No. 2, pipettes 10 μl 1,45 % pp.139-149 20 μl 0,7 % 100 μl 0,15 % 1000 μl 0,04 % 5 ml 0,04 % 10 ml 0,04 %

Page5από7 Annex F2/15 of Certificate ESYD No.196-6 21.12.2017 Measurand / Calibration & Measurement Remarks Range of measurement Calibration item Capability (k=2)* Volume / 0,5 ml 0,07 % According to guide PTB- Piston operated volume 1 ml 0,05 % Mitteilungen 112 (2002) No. 2, measuring instruments – pp.139-149 2 ml 0,08 % Dispensers, Dilutors, Piston burettes 5 ml 0,08 % 1 ml 0,05 % 25 ml 0,04 % 50 ml 0,04 % 100 ml 0,04 % 200 ml 0,04 % Volume / [1 –100]ml [0,08 - 0,04] % Burettes Volume / 5 ml 0,05 % Volumetric flasks 10 ml 0,08 % 100 ml 0,02 % 1000 ml 0,02 % 2000 ml 0,02 % Volume / [5- 2000]ml [0,06 - 0,03] % Volumetric Cylinders Volume / Bulb pipettes [0,5 –100]ml [0,08 - 0,04] % Volume/ EURAMET cg-19 v2.1 (03/2012) 2 l 0,11% Volumetric vessels «IN» of “Guidelines on the determination “slicker plate” and “neck 20 l 0,03 % of uncertainty in gravimetric scale” types” volume calibration” 100l 0,03% Liquid Volume / Methodfollowed:using standard Stationary metal tanks flow meter

Calibration medium: Tap water

Standards followed: ΕΙΜ: Calibration Guidance / Tank volume measurement with volumetric method

EURAMET cg-21v1.0 (04/2013)“Guidelines on the 0,11% determination of uncertainty in 0,5 –100 m3 of nominal tank volume gravimetric volume calibration”

The calibration can be performed on site.

*Where uncertainty is accompanied by the corresponding unit, it is absolute, while where it is not accompanied by a unit, it is relative.

Page6από7 Annex F2/15 of Certificate ESYD No.196-6 21.12.2017 **Uncertainty values were estimated assuming a spectrophotometer having a resolution of 0,1 mAU.

Site of assessment: Permanent laboratory premises, 44 Αg.Triados Str. - Pefka, Thessaloniki, Greece. Approved Signatories: A. Kougioumtzidis, C. Vratmiras, S. Fotiadis, A. Kanoulas,V. Stravas.

This Scope of Accreditation replaces the previous one dated Jule 27th2017. The Accreditation Certificate No. 196-6,to ELOT EN ISO/IEC 17025:2005, is valid until 22.03.2021

Athens, 21.12.2017

Constantinos Voutsinas

Managing Director ESYD

Page7από7 Annex F2/15 of Certificate ESYD No.196-6 21.12.2017