SCOPE OF ACCREDITATION TO ISO/IEC 17025:2017 & KS Q ISO/IEC 17025:2017

PDK CO., LTD
10-6, Expo-ro 339beon-gil, Yuseong-gu, Daejeon, Republic of Korea
Phone : +82-42-862-6880 , Fax : +82-42-862-6881 , e-mail: pdk@pdk.co.kr
CALIBRATION
Valid To : July. 04. 2025

Accreditation No : KC09-234
In recognition of the successful completion of the KOLAS evaluation process,accreditation is granted to this laboratory to perform the following calibrations

Field
Item of Calibration
on-siteCode201. Mass20109 Eletric balanceY20116 Weights
Y
204. Pressure
20401 Altimeters
Y
20402 Manometers
Y
20403 Pneumatic pressure ballancesN
20404 Hydraulic pressure ballancesN
20405 Pitot static testers
N
20406 Absolute pressure gauges
Y
20408 Compound pressure gauges
Y
20409 Differential pressure gauges
Y20411 Gauge pressure gauges
Y
20412 Pressure transducer/
Ytransmitters
20413 Dial type vacuum gauges
Y
205. Vacuum
20501 Capacitance diaphram gauges
Y
20504 Thermal conductivity gauges;
Y
Pirani, thermocouple,convectron, etc
20505 Helium leak detectors
Y
209. Fluid flow
20908 Gas flowmeters;Y
differential pressure
20911 Gas flowmeters;Ythermal mass, etc.
20914 Gas flowmeters;Y
positive displacement
20920 Gas flowmeters;
Yvariable area

Field
Code

Item of Calibration

on-site

Field
Code

Item of Calibration

on-siteNote
1. This laboratory provides calibration services in permanent standard laboratory and at on-site.
2. Laboratory conducts on-site calibration should meet requirements of KOLAS-SR-007.
3. On-site calibration is allowed to items with marking 'Y', not allowed to items with marking 'N'.
4. Measurement uncertainty normally is quoted as an expanded uncertainty at a coverage probability of 95 %, which usually requires
the use of a coverage factor of k =2. It expresses the lowest uncertainty of measurement that can be provided by accredited
calbration laboratories in normal conditions.
5.Due to the calibration environment such as reference standards or customers’ facilities, it is note that uncertainty ofmeasurement on a calibration certificate may be expressed larger than measurement uncertainty on scope of accreditation in general.

(1/4)

Accreditation No. : KC09-234
201. Mass
Measured Quantity
Instrument or Gauge
Electric balances

Weights(0 ~ 5) g

Measurement uncertainty(The Confidence
Level is about 95 %)54 µg(5 ~ 60) g

0.13 mg(60 ~ 200) g

0.3 ㎎(200 ~ 3 000) g

2.3 ㎎(3 ~ 5) kg

4.7 ㎎(5 ~ 35) kg

20 ㎎

1 ㎎ ~ 20 ㎏

(F 1 Class)

1 ㎎

5.6 µg

E2 Class Weights, Electricbalances /2 ㎎

5.6 µg

PDK-CCP-M02

5 ㎎

5.6 µg10 ㎎

7.2 µg20 ㎎

8.6 µg

50 ㎎

11 µg

100 ㎎

16 µg

200 ㎎

18 µg

500 ㎎

20 µg

1 g

25 µg

2 g32 µg

5 g

45 µg

10 g

58 µg

20 g

68 µg

50 g

84 µg

100 g

0.16 ㎎

200 g

0.30 ㎎

500 g

0.70 ㎎

1 ㎏

1.4 ㎎

2 ㎏

2.9 ㎎

5 ㎏

7.4 ㎎

10 ㎏
20 ㎏

15 ㎎

Field
Code20109

20116

Range

29 ㎎

(2/4)

Standard/Method ofMeasurement etc.
Weights /PDK-CCP-M01

Accreditation No. : KC09-234
204. Pressure
Measured Quantity
Instrument or Gauge

Field
Code

Measurement uncertainty(The Confidence
Level is about 95 %)Range

Altimeters

20401(-4 ~ 28) km

4.4×10-5Manometers

20402(0 ~ 200) kPa

1.5×10-4

Pneumatic pressure balances

20403(0 ~ 1 750) kPa

Standard/Method ofMeasurement etc.
Gas Piston Gauge/
PDK-CCP-P01
Gas Piston Gauge/
PDK-CCP-P02

3.0×10-5

Gas Piston Gauge/

3.4×10-5

PDK-CCP-P03(7 ~ 100) MPa

5.1×10-5(0.2 ~ 20) MPa

3.1×10-5(20 ~ 200) MPa(1 750 ~ 7 000) kPa
Hydraulic pressure balances

20404

4.0×10-5(200 ~ 500) MPa

8.0×10-5

4.6×10-5

Pitot static tester

20405(1.4 ~ 350) ㎪ abs

Absolute pressure gauges

20406(1.4 ~ 7 000) kPa abs

Oil Piston Gauge/
PDK-CCP-P04
Gas Piston Gauge/
PDK-CCP-P05(7 ~ 200) MPa abs
Compound pressure gauges

20408(-100 ~ 7 000) kPa

Differential pressure gauges

20409(0 ~ 2 000) Pa

3.2×10-5

Gas & Oil Piston Gauge/

4.0×10-5

PDK-CCP-P06

3.2×10-5

Gas Piston Gauge/

5.0×10-5

Gas Piston Gauge/

3.2×10-5

PDK-CCP-P09

3.2×10-5

Gas & Oil Piston Gauge/

6.8×10-5

PDK-CCP-P11

1.0×10-4

PDK-CCP-P08(2 ~ 7 000) kPa
Gauge pressure gauges

20411(0 ~ 7 000) kPa(7 ~ 200) MPa(200 ~ 500) MPa

Pressure transducers/transmitters

20412Gauge(0 ~ 7 000) kPa

Absolutedifferential
Dial type vacuum gauges

Gas & Oil Piston Gauge/

20413

7.6×10-5(7 ~ 200) MPa

8.2×10-5(200 ~ 500) MPa

1.1×10-4(1.4 ~ 7 000) kPa abs

7.6×10-5(7 ~ 200) MPa abs

8.2×10-5(0 ~ 2 500) Pa

8.0×10-5(2.5 ~ 7 000) kPa

7.6×10-5(-100 ~ 0) kPa

2.5×10-5

PDK-CCP-P12

Gas Piston Gauge/PDK-CCP-P13

205. Vacuum
Measured Quantity
Instrument or Gauge

Field
Code

Capacitance diaphragm gauges

20501

Thermal conductivity gauges;
Pirani, thermocouple,

20504

convectron, etc

Helium leak detectors

20505

Measurement uncertainty
Standard/Method of(The Confidence
Measurement etc.
Level is about 95 %)(0.023 + 0.001 7 × Ps) Pa Capacitance diaphragm

Range(0.133 ~ 13.3) Pa(13.3 ~ 133) Pa
133 Pa ~ 1.33 kPa(0.17 + 0.000 08 × Ps) Pa gauges, Absolute Piston(1.33 ~ 13.3) kPa(1.6 + 0.000 22 × Ps) Pa PDK-CCP-V01(13.3 ~ 133.3) kPa(11.4 + 0.000 028 × Ps) Pa(0.133 ~ 13.3) Pa(0.023 + 0.001 7 × Ps) Pa Capacitance diaphragm(13.3 ~ 133) Pa(0.19 + 0.000 57 × Ps) Pa gauges, Absolute Piston

133 Pa ~ 1.33 kPa(0.27 + 0.000 14 × Ps) Pa Gauge /(1.33 ~ 13.3) kPa(1.7 + 0.000 21 × Ps) Pa PDK-CCP-V02(13.3 ~ 133.3) kPa(12.3 + 0.000 026 × Ps) Pa72 nPa ㎥/s

16 nPa ㎥/s

Helium leak /3.00 nPa ㎥/s

0.64 nPa ㎥/s

PDK-CCP-V03

0.48 nPa ㎥/s

0.11 nPa ㎥/s(0.21 + 0.000 19 × Ps) Pa Gauge /(3/4)

Accreditation No. : KC09-234
209. Fluid flow
Measured Quantity
Instrument or Gauge
Gas flowmeters;

FieldCode20908

defferential pressure
Gas flowmeters;

variable area

1.4×10-3(10 000 ~ 50 000) ㎤/min 1.6×10(50 000 ~ 100 000) ㎤/min 2.3×10-3
20911(1 ~ 10 000) ㎤/min

1.4×10-3(10 000 ~ 50 000) ㎤/min 1.6×10-3(50 000 ~ 100 000) ㎤/min 2.3×10-3
1.4×10-3

Standard/Method ofMeasurement etc.
GFS system/PDK-CCP-F01
MOLBLOC/PDK-CCP-F02
GFS system/PDK-CCP-F01
MOLBLOC/PDK-CCP-F02

20914(1 ~ 10 000) ㎤/min

MOLBLOC/PDK-CCP-F02

20920(10 000 ~ 50 000) ㎤/min 1.6×10-3(50 000 ~ 100 000) ㎤/min 2.3×10-3(1 ~ 10 000) ㎤/min
1.4×10-3(10 000 ~ 50 000) ㎤/min 1.6×10-3(50 000 ~ 100 000) ㎤/min 2.3×10-3

MOLBLOC/PDK-CCP-F02

positive displacement
Gas flowmeters;(1 ~ 10 000) ㎤/min-3thermal mass, etc.
Gas flowmeters;

Measurement uncertainty(The Confidence
Level is about 95 %)Range(4/4)

GFS system/PDK-CCP-F01GFS system/PDK-CCP-F01