The Dielheim site is the western sales office of Zeros GmbH and your regional contact for materials testing in Baden-Württemberg, Hesse and Rhineland-Palatinate – from crack and weld testing to series part inspection.

The sales office is not part of the accreditation: all accredited tests are performed by the Zeros GmbH testing laboratory accredited according to DIN EN ISO/IEC 17025 (D-PL-19262-01-00) – in the laboratory or by mobile testing teams directly in your region.

Address: Industriestraße 1a, 69234 Dielheim, Germany
Phone: +49 6222 9482490
Email: officewest@zeros-gmbh.de

Our Testing Services by Standard

The Baden-Württemberg site is a sales office (not part of the accreditation). All tests marked as accredited are performed by the DAkkS-accredited testing laboratory of Zeros GmbH (D-PL-19262-01-00) – in the laboratory or by mobile testing teams directly in your region.

49 standardised test methods within the accredited scope according to DIN EN ISO/IEC 17025 – grouped by method:

Radiographic Testing (RT) (6)

DIN EN 12681-1Edition: 2018-02 Founding – Radiographic testing – Part 1: Film techniques DAkkS-accredited
DIN EN 12681-2Edition: 2018-02 Founding – Radiographic testing – Part 2: Digital detector techniques DAkkS-accredited
DIN EN ISO 5579Edition: 2014-04 Radiographic testing of metallic materials using film and X- or gamma rays – Basic rules DAkkS-accredited
DIN EN ISO 10893-6Edition: 2019-06 Non-destructive testing of steel tubes – Part 6: Radiographic testing of the weld seam DAkkS-accredited
DIN EN ISO 17636-1Edition: 2022-10 Radiographic testing of welds – Part 1: X- and gamma-ray techniques with film DAkkS-accredited
DIN EN ISO 17636-2Edition: 2023-05 Radiographic testing of welds – Part 2: X- and gamma-ray techniques with digital detectors DAkkS-accredited

Ultrasonic Testing (UT) incl. Phased Array (17)

DIN EN 10160Edition: 1999-09 Ultrasonic testing of steel flat products of thickness ≥ 6 mm (reflection method) DAkkS-accredited
DIN EN 10228-3Edition: 2016-10 Non-destructive testing of steel forgings – Part 3: Ultrasonic testing of ferritic or martensitic steel forgings DAkkS-accredited
DIN EN 10228-4Edition: 2016-10 Non-destructive testing of steel forgings – Part 4: Ultrasonic testing of austenitic and austenitic-ferritic stainless steel forgings DAkkS-accredited
DIN EN 10307Edition: 2002-03 Ultrasonic testing of austenitic and austenitic-ferritic stainless steel flat products from 6 mm thickness DAkkS-accredited
DIN EN 10308Edition: 2002-03 Ultrasonic testing of steel bars DAkkS-accredited
DIN EN 12680-1Edition: 2026-03 (ab 07.07.2026) Founding – Ultrasonic testing – Part 1: Steel castings for general purposes DAkkS-accredited
DIN EN 12680-2Edition: 2026-03 (ab 07.07.2026) Founding – Ultrasonic testing – Part 2: Steel castings for highly stressed components DAkkS-accredited
DIN EN 12680-3Edition: 2026-03 (ab 07.07.2026) Founding – Ultrasonic testing – Part 3: Spheroidal graphite cast iron castings DAkkS-accredited
DIN EN ISO 13588Edition: 2019-07 Ultrasonic testing of welds – Use of automated phased array technology DAkkS-accredited
DIN EN ISO 16810Edition: 2025-01 Ultrasonic testing – General principles DAkkS-accredited
DIN EN ISO 16826Edition: 2025-06 Ultrasonic testing – Examination for discontinuities perpendicular to the surface DAkkS-accredited
DIN EN ISO 17640Edition: 2019-02 Ultrasonic testing of welds – Techniques, testing levels and assessment DAkkS-accredited
DIN EN ISO 20601Edition: 2019-04 Ultrasonic testing of welds – Automated phased array technology for thin-walled steel components DAkkS-accredited
DIN EN ISO 22825Edition: 2018-02 Ultrasonic testing of welds in austenitic steels and nickel-based alloys DAkkS-accredited
DIN ISO 4386-1Edition: 2022-08 Plain bearings – Part 1: Ultrasonic testing of bond of metallic multilayer plain bearings DAkkS-accredited
DIN EN 14127Edition: – Ultrasonic thickness measurement not accredited *
DIN EN ISO 10863Edition: – Ultrasonic testing of welds – Use of time-of-flight diffraction technique (TOFD) not accredited *

Penetrant Testing (PT) (6)

DIN EN 1371-1Edition: 2012-02 Founding – Liquid penetrant testing – Part 1: Sand, gravity die and low pressure die castings DAkkS-accredited
DIN EN 1371-2Edition: 2015-04 Founding – Liquid penetrant testing – Part 2: Investment castings DAkkS-accredited
DIN EN 10228-2Edition: 2016-10 Non-destructive testing of steel forgings – Part 2: Penetrant testing DAkkS-accredited
DIN EN ISO 3452-1Edition: 2022-02 Penetrant testing – Part 1: General principles DAkkS-accredited
DIN EN ISO 10893-4Edition: 2011-07 Non-destructive testing of steel tubes – Part 4: Penetrant testing of seamless and welded steel tubes DAkkS-accredited
DIN ISO 4386-3Edition: 2020-04 Plain bearings – Part 3: Non-destructive penetrant testing DAkkS-accredited

Magnetic Particle Testing (MT) (5)

DIN EN 10228-1Edition: 2016-10 Non-destructive testing of steel forgings – Part 1: Magnetic particle inspection DAkkS-accredited
DIN EN ISO 9934-1Edition: 2017-03 Magnetic particle testing – Part 1: General principles DAkkS-accredited
DIN EN ISO 10893-5Edition: 2011-07 Non-destructive testing of steel tubes – Part 5: Magnetic particle inspection of seamless and welded ferromagnetic steel tubes DAkkS-accredited
DIN EN ISO 17638Edition: 2017-03 Non-destructive testing of welds – Magnetic particle testing DAkkS-accredited
DIN EN 1369Edition: – Founding – Magnetic particle testing not accredited *

Visual Testing (VT) (3)

DIN EN 13018Edition: 2016-06 Visual testing – General principles DAkkS-accredited
DIN EN ISO 17637Edition: 2017-04 Non-destructive testing of welds – Visual testing of fusion-welded joints DAkkS-accredited
DIN EN 1370Edition: – Founding – Examination of surface condition not accredited *

Rail Vehicles (3)

DIN 27201-7Edition: 2026-05 (ab 07.07.2026) State of railway vehicles – Basic principles and production technology – Part 7: Non-destructive testing DAkkS-accredited
DIN EN 16729-1Edition: – Railway applications – Non-destructive testing on rails in track – Part 1: Requirements for ultrasonic inspection not accredited *
Richtlinie DB 821.2005Edition: – Non-destructive testing of rails and switches (DB regulations) not accredited *

Cross-Method Procedures (1)

AD 2000-Merkblatt HP 5/3 Anlage 1Edition: 2025-01 (ab 31.07.2025) Non-destructive testing of welds – Minimum procedural requirements for NDT methods DAkkS-accredited

Hardness Testing (5)

DIN EN ISO 6506-1Edition: 2015-02 Metallic materials – Brinell hardness test – Part 1: Test method DAkkS-accredited
DIN EN ISO 6507-1Edition: 2024-01 (ab 02.08.2024) Metallic materials – Vickers hardness test – Part 1: Test method DAkkS-accredited
DIN EN ISO 9015-1Edition: 2011-05 Destructive tests on welds – Hardness testing – Part 1: Hardness test on arc welded joints DAkkS-accredited
DIN EN ISO 9015-2Edition: 2016-10 Destructive tests on welds – Hardness testing – Part 2: Microhardness testing of welded joints DAkkS-accredited
DIN 50159Edition: – Hardness testing using the UCI method (mobile hardness testing) not accredited *

Mechanical Testing (4)

DIN EN ISO 148-1Edition: 2017-05 Metallic materials – Charpy pendulum impact test – Part 1: Test method DAkkS-accredited
DIN EN ISO 6892-1Edition: 2020-06 Metallic materials – Tensile testing – Part 1: Method of test at room temperature DAkkS-accredited
DIN EN ISO 9016Edition: 2022-07 (ab 31.07.2025) Destructive tests on welds – Impact tests – Test specimen location, notch orientation and examination DAkkS-accredited
DIN EN ISO 9017Edition: 2018-04 Destructive tests on welds – Fracture test DAkkS-accredited

Metallographic Examinations (5)

DIN EN ISO 643Edition: 2024-12 (ab 19.08.2025) Steels – Micrographic determination of the apparent grain size DAkkS-accredited
DIN EN ISO 945-1Edition: 2019-10 Microstructure of cast irons – Part 1: Graphite classification by visual analysis DAkkS-accredited
DIN EN ISO 17639Edition: 2022-05 Destructive tests on welds – Macroscopic and microscopic examination of welds DAkkS-accredited
DIN EN ISO 1463Edition: 2021-08 Metallic and oxide coatings – Measurement of coating thickness – Microscopical method DAkkS-accredited
AA T-31 (Hausverfahren)Edition: 2022-11 Assessment of microstructures of metallic materials (in-house method) DAkkS-accredited

Chemical Analysis (OES & XRF) (2)

AA T-13 (Hausverfahren)Edition: 2026-07 OES of 17 elements in steel/iron materials and 9 elements in aluminium materials (in-house method) DAkkS-accredited
RFA – RöntgenfluoreszenzanalyseEdition: – Energy-dispersive X-ray fluorescence analysis for material identification (PMI) not accredited *

Corrosion Testing (1)

DIN EN ISO 9227Edition: – Corrosion tests in artificial atmospheres – Salt spray tests (incl. NSS) not accredited *

Chain and Lifting Gear Testing (1)

DIN 685-5Edition: 2020-08 Tested round steel link chains – Part 5: Use and testing not accredited *

Heat Treatment & Procedure Qualification (2)

DIN EN ISO 15613Edition: – Specification and qualification of welding procedures for metallic materials – Qualification based on pre-production welding test not accredited *
DIN EN ISO 15614-1Edition: – Specification and qualification of welding procedures for metallic materials – Welding procedure test (arc and gas welding of steels, nickel and nickel alloys) not accredited *

* Testing outside the accredited scope of DAkkS accreditation D-PL-19262-01-00. On request, this is stated accordingly in the test report.

Basis: accreditation certificate D-PL-19262-01-00 with annexes (NDT: 01-01, destructive testing: 01-02) and the flexible-scope list (Flexliste), as of 29.07.2026.

Download the Flexliste (PDF) Verify the entry in the DAkkS database