DIN 51222 specifies particular requirements and verification expectations for pendulum impact testing machines with a nominal energy of 50 J or less, used for notched impact (impact bending) testing.
If you need help matching your pendulum impact tester configuration and verification approach to the DIN 51222 edition cited on your drawing, procedure, or customer spec, talk with our team.
DIN 51222: Materials testing machines — impact test — particular requirements (≤ 50 J) and verification
DIN 51222 is a DIN standard focused on verifying pendulum impact testing machines in the lower-energy range (nominal energy ≤ 50 J). It is intended to add requirements that are not fully specified in DIN EN ISO 148-2 for this machine class.
| Item | What DIN 51222 covers |
|---|---|
| Machine type | Pendulum impact (Charpy-type) testing machines |
| Energy class | Nominal energy ≤ 50 J |
| Primary focus | Particular requirements and verification (machine-focused, not a specimen test method) |
Quick Definition
DIN 51222: A machine requirements and verification standard for low-energy pendulum impact testers (≤ 50 J), used to support reliable notched impact testing.
Best fit use: When a customer specification calls out DIN 51222 as a qualification/verification basis for a pendulum impact tester used for notched impact tests.
What This Standard Covers
This standard is centered on the pendulum impact machine itself. It defines particular requirements and verification expectations for pendulum impact testing machines in the ≤ 50 J nominal energy class, supplementing the general framework used for impact testing machine verification.
DIN 51222 is commonly cited alongside impact test methods (for example, the notched impact test method DIN EN ISO 148-1) to help ensure the machine is suitable and qualified for the intended testing work.
Why This Standard Matters in Testing
Lower-energy pendulum impact testing can be more sensitive to machine condition, setup, and verification details. When DIN 51222 is specified, the goal is typically to reduce measurement uncertainty and improve confidence that impact energy results are comparable over time and across labs.
For procurement and lab planning, DIN 51222 is often a “machine acceptance / verification” requirement. The right equipment package is not just the pendulum impact tester—it also includes the verification tools, documentation, and service workflow needed to maintain compliance with the cited edition.
Common Materials, Product Types, or Applications Covered
DIN 51222 is associated with notched impact (impact bending) testing workflows commonly used in materials qualification and QA/QC, where impact energy is a reportable property and machine verification must be controlled.
It is particularly relevant in labs running lower-energy impact work where a ≤ 50 J pendulum is used and the verification basis must be clearly defined in the test plan or customer specification.
Common Test or Verification Workflow
DIN 51222 is typically used as part of a machine verification and ongoing control workflow for a pendulum impact tester used for notched impact testing.
Common workflow: Confirm the cited DIN 51222 edition → select a pendulum impact machine with an appropriate nominal energy rating (≤ 50 J) → perform the required verification steps for the machine → document verification status and keep records aligned to internal quality requirements and customer specs.
If you are aligning a new installation or an audit package to a customer requirement, edition matching is important; verification and reporting expectations can depend on the exact edition named in the contract or test procedure.
Equipment Commonly Used for This Standard
Because DIN 51222 is machine-focused, equipment selection typically centers on a pendulum impact tester platform and the supporting verification setup.
Common equipment: Pendulum impact testing machine (nominal energy ≤ 50 J), appropriate striker/anvil and specimen support hardware for the intended impact method, and a verification/maintenance package suited to the lab’s quality system.
For budgeting and configuration support (energy range, guarding, readout/data capture, and verification approach), you can request a detailed quote for a setup matched to your DIN 51222-driven workflow.
How to Read This Designation or Revision
DIN standards are often cited with a date code that identifies the edition. For example, “DIN 51222:2017-02” indicates an edition dated February 2017.
Revision sensitivity: Machine verification expectations and documentation can be edition-dependent. When DIN 51222 is referenced in a purchase specification or customer requirement, use the exact cited edition when defining acceptance and verification deliverables.
Related Standards, Methods, or Frameworks
DIN 51222 is commonly used alongside notched impact testing methods and machine verification standards for pendulum impact testing. In practice, it is often connected to Charpy-type testing workflows where the specimen method and the machine verification basis are both specified.
Commonly associated references: DIN EN ISO 148-1 (notched impact test method) and DIN EN ISO 148-2 (verification of pendulum impact testing machines).
Get help selecting a DIN 51222-aligned impact testing setup
If you are procuring a ≤ 50 J pendulum impact tester or updating your verification program to match a customer callout, we can help you align the configuration and documentation package to the edition you need—request pricing for a DIN 51222-oriented setup.