General

DAkkSAs an accredited calibration laboratory, we can give you the assurance that the hardness testing machines are calibrated in your company according to valid standards (DIN EN ISO, ASTM). Our calibration laboratory is continuosly monitored by the DAkkS (Deutsche Akkreditierungsstelle), so that the services we offer are always state-fo-the-art and comply with the specified standards. All our service technicians and engineers have unrestricted access to the company's many years of calibration experience in addition to their extensive experience and training.

We are aware of our responsibility for your hardness testing machines. Therefore we work exclusively with high-precision measuring equipment that complies with the standards. Let us give you competent advice and leave the timely calibration of your machines to us - as your partner for calibration.

 

Scope of calibration
  • Calibration of the methods requested by the customer on the test device according to standard
  • Pre-testing according to standards
  • Functional testing
  • Direct and indirect testing
  • Evaluation of the calibration under consideration of measurement uncertainty
  • Documentation of the calibration, standard conformity statement, traceability to national standards
  • Issuing the calibration certificate
  • Sending the electronic calibration certificate by e-mail

Send us a calibration request

 

Accredited testing methods

Measured variable /
Object of calibration		Measuring range /
Measuring span		Measuring conditions /
Methods		Minimum
measurement uncertainty

Hardness (WPM)

 Brinell
60 HBW bis 100 HBW DIN EN ISO 6506-2:2015-02
ASTM E10-18
DIN EN ISO 4545-2:2018
DIN EN ISO 6508-2:2015-06
ASTM E18-20
VDI/VDE 2616-1 Blatt 1:2012-08		 1% HBW,
jedoch nicht < 1,5 x Ucrm
100 HBW bis 650 HBW 2% HBW,
jedoch nicht < 1,5 x Ucrm
Vickers
140 HV bis 840 HV
(Härteskalen HV5 bis HV100)
(Härteskalen HV0,01 bis HV3)		 DIN EN ISO 6507-2:2018-07
ASTM E92-17
ASTM E384-17
1% HV, jedoch nicht < 1,5 x Ucrm
2% HV, jedoch nicht < 1,5 x Ucrm
Knoop
140 HK bis 840 HK
(Härteskalen HK0,01 bis HK2)		 DIN EN ISO 4545-2:2018-07
ASTM E92-17
ASTM E384-17
25 HK, jedoch nicht < 1,5 x Ucrm
Rockwell
20 HRA bis 88 HRA DIN EN ISO 6508-2:2015-06
ASTM E18-20		 0,6 HRA
20 HRB bis 55 HRB 1,5 HRB
56 HRB bis 100 HRB 1,0 HRB
20 HRC bis 55 HRC 0,8 HRC
56 HRC bis 70 HRC 0,6 HRC
60 HRF bis 100 HRF 1,0 HRF
20 HRN bis 91 HRN 1,0 HRN
12 HRT bis 93 HRT 2,0 HRT
20 HR15Y bis 95 HR15Y (only ASTM) 0,5 HR15Y
Brinell depth
40 HR2,5/62,5 bis 85 HR2,5/62,5 ESI-KA HR081825, V1.0: 2017 0,8 HR2,5/62,5
25 HR2,5/187,5 bis 70 HR2,5/187,5 0,8 HR2,5/187,5
60 HBT bis 100 HBT VDI/VDE 2616-1
Validierung HBWT V5.0		 1% HBT
100 HBT bis 500 HBT 2% HBT
EHT187,5/1000
EHT 0,15mm bis EHT 1,43mm ESI-KA EHT-T050820, V8.0: 2017 1,5 HR

Force measurement devices
of
hardness testing machines

 2,5N bis 50kN DIN EN ISO 6506-2:2015-02
ASTM E10-18
DIN EN ISO 6507-2:2018-07
ASTM E92-17
ASTM E384-17
DIN EN ISO 4545-2:2018-07
DIN EN ISO 6508-2:2015-06
ASTM E18-20
VDI/VDE 2616-1 Blatt 1:2012-08		 0,12%
0,1N bis 100N 0,10%

Optical indetation measurement devices
of
hardness testing machines

 0mm bis 6mm DIN EN ISO 6506-2:2015-02
ASTM E10-18
DIN EN ISO 6507-2:2018-07
ASTM E92-17
ASTM E384-17
DIN EN ISO 4545-2:2018-07		 0,15µm

Depth measurement devices
of
hardness testing machines

 0mm bis 0,2mm DIN EN ISO 6508-2:2015-06
ASTM E18-20		 0,3µm

Force (WPM)
Force measurement
devices of material testing machines
and test devices according to DIN 51220

 2,5N bis 50kN

DIN EN ISO 7500-1:2018-06

 0,12%
0,1N bis 100N 0,10%

Length (WPM)
Length measurement devices
of spring testing machines

 25mm, 50mm und 75mm ESI-KA F060504, V7.0: 2017 0,6µm

Torque (WPM)
Torque measuring devices
of material testing machines and
test devices according to DIN 51220

 1 ·10-4 Nm bis 20 Nm ESI-KA_TO-2006 0,14%

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