VDI DKD 5901 Blatt-2 E 2022-05 PDF

Full title and description

STB VDI DKD 5901 Blatt-2 E 2022-05 — Kalibrierung von Prüf- und Messmitteln im Kraftfahrwesen: Bremsprüfstände (Calibration of test and measuring equipment in automotive — Brake testers). This document (originally issued as a VDI/DKD guideline draft in May 2022) specifies procedures, requirements and documentation for the calibration of brake testers (roller and plate type) used in the automotive sector.

Abstract

This guideline describes static and dynamic calibration methods for brake test benches, including lever‑mass (static) and comparison procedures with reference force transducers, required reference standards (Normale), environmental and measurement conditions, minimal requirements for measurement‑uncertainty calculation, and rules for conformity assessment and calibration documentation. It was issued as VDI/DKD 5901 Blatt 2 in May 2022 (draft/issue) and later replaced by an updated edition published in 2023.

General information

• Status: Withdrawn / replaced — original draft edition 2022‑05 has been superseded by VDI/DKD 5901 Blatt 2:2023‑07 (active edition).
• Publication date: 2022‑05 (draft/issue indicated as 2022‑05); replacement edition published 2023‑07.
• Publisher: VDI (in cooperation with DKD) — distributed/sold via DIN/VDE publishing channels.
• ICS / categories: 43.180 (diagnostic, maintenance and test equipment — automotive testing and diagnostic equipment).
• Edition / version: STB VDI DKD 5901 Blatt‑2 E 2022‑05 (original draft/issue) — superseded by VDI/DKD 5901 Blatt 2:2023‑07.
• Number of pages: 11 pages (document metadata for the 2022‑05 edition indicates 11 pages). Users should refer to the 2023‑07 replacement for the definitive page count.

Scope

The guideline applies to the calibration of brake testers (both roller and plate type) used in the automotive sector. It defines static and dynamic calibration procedures, required reference instruments (Normale), environmental and measurement conditions, the structure of measurement series, minimum requirements for measurement‑uncertainty evaluation and conformity assessment, plus the information to be recorded in a calibration certificate. The document is intended for laboratories and organizations that perform or rely on calibrations of brake testing equipment.

Key topics and requirements

• Classification of calibration procedures: static (lever‑mass and comparison with reference force transducer) and dynamic methods.
• Requirements for Normale (reference standards) and their calibration status before use.
• Specified environmental and measurement conditions (e.g., temperature considerations) during calibration.
• Structure of measurement series, minimum repetition and data to be recorded for each calibration run.
• Minimum requirements for calculating measurement uncertainty and performing conformity assessment (decision rules aligned with VDI/DKD 5901 Blatt 1).
• Content and format requirements for the calibration certificate (measured values, individual series, means, roll diameter, etc.).

Typical use and users

Primary users are calibration laboratories (including DKD‑accredited labs), vehicle inspection bodies, manufacturers and operators of brake test benches, vehicle service organizations and regulatory authorities involved in vehicle safety testing. The guideline is used to plan, perform and document calibrations, to demonstrate conformity with regulatory tolerances, and to provide traceable calibration results for maintenance and legal/technical records.

Related standards

Related VDI/DKD documents in the series include VDI/DKD 5901 Blatt 1 (Fundamentals and decision rule for conformity assessment of calibrations), and other VDI/DKD guidance covering calibration of test and measuring equipment in automotive applications. Users should consult Blatt 1 for the decision rule and risk‑based conformity assessment methodology referenced in Blatt 2.

Keywords

brake tester, brake test bench, calibration, VDI/DKD 5901 Blatt 2, lever‑mass method, reference force transducer, measurement uncertainty, conformity assessment, automotive testing, calibration certificate.

FAQ

Q: What is this standard?

A: It is VDI/DKD 5901 Blatt 2 (STB prefix used in some catalog listings), a guideline that specifies calibration procedures and requirements for brake testers used in the automotive sector. The 2022‑05 issue was a produced edition that has since been superseded.

Q: What does it cover?

A: It covers static and dynamic calibration methods for roller and plate brake testers, required reference instruments, measurement and environmental conditions, measurement‑series design, minimal uncertainty calculation requirements, conformity assessment rules and calibration documentation content.

Q: Who typically uses it?

A: Calibration and testing laboratories (including those seeking DKD/DIN accreditation), vehicle inspection organizations, vehicle manufacturers and service operators, and authorities or technical committees responsible for vehicle safety testing.

Q: Is it current or superseded?

A: The 2022‑05 issue is superseded — the active/recommended edition is VDI/DKD 5901 Blatt 2:2023‑07. Users should obtain and apply the 2023‑07 edition for current requirements.

Q: Is it part of a series?

A: Yes — it is part of the VDI/DKD 5901 series on calibration of test and measuring equipment in the automotive sector; Blatt 1 provides fundamentals and the decision rule used for conformity assessment referenced in Blatt 2.

Q: What are the key keywords?

A: Brake tester, calibration, measuring equipment, lever‑mass, reference force transducer, measurement uncertainty, conformity assessment, automotive test equipment.