All News:  Accreditation 

Accreditation - 3-Rath Kalibrier+Prüftechnik GmbH & Co. KG


Accreditation

We have expanded our accreditation!

As an accredited laboratory, we are subject to constant monitoring by the German Accreditation Body (DAkkS).

At regular intervals, specialists and system assessors check whether our work meets the requirements of 17025.

We use this monitoring not only to ensure our quality, but also to further develop ourselves.

In this case, we took the opportunity to expand our accreditation. We are happy that we now also offer you calibration for Leeb and UCI test devices.

You can find our certificate here!

 

Here you will find the procedures from our flexible accreditation scope:

 

1) Brinell: DIN EN ISO 6506-2:2019 / ASTM E10:2018

60 – 600 HBW
Extended measurement uncertainty 2%

2) Vickers: DIN EN ISO 6507-2:2018 / ASTM E92:2017 / ASTM E384:2017

100 – 900 HV
Extended measurement uncertainty HV0.01 to HV3 – 2%
Extended measurement uncertainty HV5 to HV100 – 1.5%
but not < 1.5*Ucrm in each case

3) Knoop: DIN EN ISO 4545-2:2018 / ASTM E384:2017

250 – 850 HK
Extended measurement uncertainty 2%

4) Rockwell: DIN EN ISO 6508-2 / ASTM E18-2022

20 – 88 HRA / Extended measurement uncertainty 1.0 HRA
20 – 100 HRB / Extended measurement uncertainty 1.0 HRB
20 – 70 HRC / extended measurement uncertainty 1.0 HRC
70 – 100 HRE / Extended measurement uncertainty 1.4 HRE
60 – 100 HRF / extended measurement uncertainty 1.0 HRF
40 – 100 HRK / extended measurement uncertainty 1.0 HRK
70 – 94 HR15N / Extended measurement uncertainty 1.0 HR15N
42 – 86 HR30N / Extended measurement uncertainty 1.0 HR30N
20 – 77 HR45N / Extended measurement uncertainty 1.0 HR45N
67 – 93 HR15T / Extended measurement uncertainty 1.0 HR15T
29 – 82 HR30T / Extended measurement uncertainty 1.0 HR30T
10 – 72 HR45T / Extended measurement uncertainty 1.0 HR45T

5) Optical indentation measuring devices of hardness testing machines – Brinell / Vickers / Knoop – DIN and ASTM

0 – <2 mm / extended measurement uncertainty 0.2µm
2 – 10 mm / extended measurement uncertainty 0.2 μm + 2 10-7 L

6) Depth measuring devices of hardness testing machines – Rockwell – DIN and ASTM

0 – 0.2 mm / Extended measurement uncertainty ± 0.3 μm

7) Test forces – Brinell / Vickers / Rockwell / Knoop – DIN and ASTM

0.5 N – 30 kN / extended measurement uncertainty 0.24%

8) Hardness testing devices according to the UCI method

100 – 900 HV
Extended measurement uncertainty 2*Ucrm

9) Hardness testing devices according to the Leeb method

300 – 900 HLD
400 – 700 HLD
Extended measurement uncertainty 2*Ucrm